Tag: Kiripotib

NGC 7293 Helix Nebula

The Helix Nebula, also known as NGC 7293, is a large planetary nebula located in the constellation Aquarius, about 650 light-years away from Earth. Often called the “Eye of God” due to its striking appearance, it features a bright, donut-shaped ring of gas and dust surrounding a central, faint white dwarf—the remnant core of a dying star. This nebula formed when the star shed its outer layers in the final stages of its life, creating the colorful halo we see today. It spans about 2.5 light-years and is one of the closest planetary nebulae to Earth, making it a popular object of study in astronomy.

TelescopeNewtonian 200/800 mm
Aperture200 mm
Focal length800 mm
MountSkywatcher EQ6R
AutoguidingZWO 174MM, WO 40/200 mm
CameraZWO 071MC @-0°C
CorrectorGPU
FiltersAntlia DualBand
Exposure131x180s, Gain 100, bin 1×1,
Date2024-10-05

NGC 104 Globular Cluster

NGC 104, also known as 47 Tucanae, is a massive globular cluster located in the constellation Tucana, about 13,000 light-years from Earth. It’s one of the brightest and most massive globular clusters in the Milky Way, containing several million stars densely packed within a roughly spherical shape. With a diameter of around 120 light-years, NGC 104 is easily visible to the naked eye in the southern hemisphere. The cluster is rich in older stars, giving it a golden hue, and is known for its dense core, where stars are packed thousands of times closer together than in our solar neighborhood.

TelescopeNewtonian 200/800 mm
Aperture200 mm
Focal length800 mm
MountSkywatcher EQ6R
AutoguidingZWO 174MM, WO 40/200 mm
CameraZWO 071MC @-10°C
CorrectorGPU
Filters
Exposure47x180s, Gain 100, bin 1×1,
Date2024-10-04

IC 2177 Seagull Nebula

The Seagull Nebula, designated IC 2177, is a large emission nebula located on the border between the constellations Monoceros and Canis Major, about 3,650 light-years from Earth. Shaped somewhat like a bird in flight, this nebula spans approximately 100 light-years across and consists of a combination of glowing gas and dark dust clouds. The vibrant colors are produced as young, hot stars energize surrounding hydrogen gas, causing it to emit a reddish glow. IC 2177 is part of a larger complex of nebulae and star-forming regions, making it an active area for the birth of new stars and a popular subject for both amateur and professional astrophotographers.

TelescopeSkywatcher Esprit 100ED
Aperture100 mm
Focal length550 mm
MountRainbow Astro RST135
AutoguidingZWO 178MM, QHY Mini Guide Scope
CameraZWO ASI2600MM @0°C
CorrectorSkywatcher flattener
FiltersAntlia Ha OIII SII
Exposure106x300s, Gain 100, bin 1×1,
Date2024-10-04

Cat’s Paw and Prawn Nebulae

The Cat’s Paw Nebula (NGC 6334) is a bright emission nebula located in the constellation Scorpius (up right). Its distinctive shape resembles a cat’s paw, with regions of glowing gas and dark dust lanes. This star-forming region is rich in massive, young stars, and its reddish color comes from the ionization of hydrogen gas by intense ultraviolet radiation from these stars.

The Prawn Nebula (IC 4628), also in Scorpius (bottom left), is another emission nebula and star-forming region. It is often overlooked due to its faintness but is a beautiful expanse of glowing gas and dust, with an orange or pinkish hue in images. The nebula is lit by nearby hot, young stars and spans about 250 light-years, making it a large but relatively faint target for observers.

Both nebulae are stunning examples of stellar nurseries, offering insights into star formation and cosmic evolution.

TelescopeAskar ACL 200 F4
Aperture50 mm
Focal length200 mm
MountiOptron HEM15
AutoguidingZWO ASI485MC, QHY Mini Guide Scope
CameraZWO 6200MC @0°C
Filtersnone
Exposure77x300s, Gain 100, bin 1×1,
Date2024-10-03

M78 Nebula

The M78 Nebula, also known as Messier 78, is a bright reflection nebula located in the constellation Orion, about 1,350 light-years from Earth. Known for its striking blue color, M78 is illuminated by the light of young, hot stars embedded within it. The nebula’s dust particles reflect this starlight, creating a luminous glow that highlights its wispy clouds and dark lanes of dust. M78 is one of the brightest reflection nebulae in the sky and is a fascinating region of active star formation, where new stars continue to emerge within dense pockets of gas and dust.

TelescopeNewtonian 200/800 mm
Aperture200 mm
Focal length800 mm
MountSkywatcher EQ6R
AutoguidingZWO 174MM, WO 40/200 mm
CameraZWO 071MC @-10°C
CorrectorGPU
Filters
Exposure200x180s, Gain 100, bin 1×1,
Date2024-10-03

NGC 300 Sculptor Pinwheel Galaxy

NGC 300, also known as the Sculptor Pinwheel Galaxy, is a spiral galaxy located approximately 6.07 million light-years away in the constellation Sculptor. It is one of the closest galaxies outside the Local Group and is part of the Sculptor Group of galaxies. With its well-defined spiral arms and central bulge, NGC 300 resembles the Milky Way in structure but is smaller in size. It is known for its vibrant star-forming regions, abundant clusters of young, hot stars, and intricate dust lanes. NGC 300 is often studied for insights into galaxy formation and stellar evolution.

TelescopeNewtonian 200/800 mm
Aperture200 mm
Focal length800 mm
MountSkywatcher EQ6R
AutoguidingZWO 174MM, WO 40/200 mm
CameraZWO 071MC @-10°C
CorrectorGPU
Filters
Exposure69x180s, Gain 100, bin 1×1,
Date2024-10-02

Large Magellanic Cloud (LMC), Small Magellanic Cloud (SMC), and the dust around

The Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC) are two irregular dwarf galaxies that orbit the Milky Way. They are among the closest galaxies to us and are visible from the Southern Hemisphere.

  • Large Magellanic Cloud (LMC): Located about 160,000 light-years away, the LMC is the fourth-largest galaxy in the Local Group. It contains the Tarantula Nebula, one of the most active star-forming regions in the nearby universe.
  • Small Magellanic Cloud (SMC): Positioned around 200,000 light-years from Earth, the SMC is smaller and more irregular than the LMC. It has a rich mix of young and old stars and is known for its interaction with both the LMC and the Milky Way, causing bursts of star formation.

Both galaxies are important for studying cosmic evolution and are key targets for astronomers exploring star formation and galactic interactions.

TelescopeSigma 40mm @F1.4
Aperture28 mm
Focal length40 mm
MountiOptron HEM15
AutoguidingZWO ASI485MC, QHY Mini Guide Scope
CameraZWO 6200MC @0°C
Filtersnone
Exposure84x180s, Gain 100, bin 1×1,
Date2024-10-02

M42 Orion Nebula

The Orion Nebula, also known as M42 or NGC 1976, is a massive and bright emission nebula located in the constellation Orion, about 1,344 light-years away from Earth. It spans roughly 24 light-years across and is one of the most active star-forming regions in our galaxy, making it a vivid nursery for new stars and planetary systems. Its intense, colorful glow is due to ultraviolet radiation from young, hot stars within, which ionizes surrounding gas, causing it to shine. Visible even to the naked eye, M42 is one of the most studied and photographed nebulae, offering insights into the processes of stellar and planetary formation.

TelescopeSkywatcher Esprit 100ED
Aperture100 mm
Focal length550 mm
MountRainbow Astro RST135
AutoguidingZWO 178MM, QHY Mini Guide Scope
CameraZWO ASI2600MM @0°C
CorrectorSkywatcher flattener
FiltersAntlia HaRGB
Exposure232x120s, Gain 100, bin 1×1,
Date2024-10-02

NGC 55 String of Pearls Galaxy

NGC 55 is a barred irregular galaxy located in the constellation Sculptor, approximately 6.5 million light-years from Earth. It is a member of the Sculptor Group, one of the closest galaxy groups to our own Local Group. NGC 55’s elongated, edge-on structure gives it a striking resemblance to the Small Magellanic Cloud, making it an intriguing subject for astronomers studying galaxy formation and evolution. It features active star-forming regions, dust lanes, and a complex mix of young blue stars and older red stars. Its irregular shape is likely influenced by gravitational interactions with neighboring galaxies.

TelescopeNewtonian 200/800 mm
Aperture200 mm
Focal length800 mm
MountSkywatcher EQ6R
AutoguidingZWO 174MM, WO 40/200 mm
CameraZWO 071MC @-10°C
CorrectorGPU
Filters
Exposure79x180s, Gain 100, bin 1×1,
Date2024-10-01

Comet C/2023 A3 (Tsuchinshan–ATLAS)

Comet C/2023 A3 (Tsuchinshan–ATLAS) is a long-period comet discovered in early 2023 by the Tsuchinshan Observatory in China and the ATLAS survey project in Hawaii. It has drawn attention for its potential to become a bright object in the sky as it approaches the Sun. The comet’s path took it closest to the Sun (perihelion) in late September 2024, making it visible from Earth, especially in the southern hemisphere, and giving it a spectacular appearance. I was lucky to be in the right place at the right time, and I captured it with two different optical instruments. The comet was very close to the sun, and two tails were visible on this specific day. The primary large tail is made of dust particles, which are frozen in the comet and evaporated by the sun. The secondary tail is on the other hand created by the UV light, which ionizes the gas blown off the comet, and the solar wind carries these ions straight out from the Sun to form the ion tail, which typically glows blue. This is exactly, what is visible on the following picture:

TelescopeAskar ACL200
Aperture50 mm
Focal length200 mm
MountiOptron HEM15
AutoguidingZWO ASI485MC, QHY Mini Guide Scope
CameraZWO 6200MC @0°C
Exposure8x60s, Gain 100, bin 1×1,
Date2024-10-01
LensSigma 40 mm Art
Focal ratio F 1.4
Focal length40 mm
MountTripod
CameraSony A7III astro-modified
ISO1600
Exposure158x5s
Date2024-10-01

Dark Nebula in the constellation Corona Australis

The Dark Nebula in the constellation Corona Australis, also known as the Corona Australis Molecular Cloud, is a dense region of interstellar dust and gas located about 430 light-years from Earth. This dark nebula is notable for its opaque appearance, as it blocks light from stars behind it, creating a stark, shadowy silhouette against the surrounding star field. Within this cloud, young stars are actively forming, and the nebula itself appears to be dotted with faint, reflection nebulae illuminated by these young stars. Its dark, dusty tendrils make it a fascinating example of a star-forming region hidden in shadow, offering a glimpse into the early stages of stellar evolution.

TelescopeAskar ACL200
Aperture50 mm
Focal length200 mm
MountiOptron HEM15
AutoguidingZWO ASI485MC, QHY Mini Guide Scope
CameraZWO 6200MC @0°C
Corrector
Filters
Exposure102x300s, Gain 100, bin 1×1,
Date2024-09-29

IC 2118 Witch Head Nebula

The Witch Head Nebula is a striking and eerie interstellar cloud of dust and gas located in the constellation Orion. Its distinct shape, resembling the profile of a witch’s face in profile, is created by the illumination of nearby stars. This nebula spans about 50 light-years across and is primarily composed of hydrogen gas, which glows faintly in the presence of ultraviolet radiation from neighboring stars. The nebula is a site of ongoing star formation, with young, hot stars embedded within its dusty tendrils.

I tried to capture this nebula several times, but the outcomes were always questionable. This time I had excellent sky conditions – no clouds, no humidity, and nothing that bothered me in creating finally the image I like.

TelescopeAskar ACL200
Aperture50 mm
Focal length200 mm
MountiOptron HEM15
AutoguidingZWO ASI485MC, QHY Mini Guide Scope
CameraZWO 6200MC @0°C
Filters
Exposure101x300s, Gain 100, bin 1×1,
Date2024-09-29

Namibia 2023

As I promised last year, we had to return to Namibia, because I have some unsettled business with the Dolphin Nebula. This year was already a post-pandemic year, so there were many guests at Kiripotib astro farm. The program of the day was the same as last time – processing the pictures during the day and photographing during the night. We managed to see the giraffes again just by e-biking a few km from the farm:

As I already mentioned, my primary target was the Dolphin Nebula, but I prepared a detailed plan of what to photograph. Unfortunately, the plan was ruined by the weather. The first 3 days it was cloudy and even stormy.

This was such a surprise because last time we had only clear skies. I rented a Newtonian telescope for 3 nights and two nights were cloudy, so I had to concentrate on high-priority deep space objects. I tried to recapture the Galaxy Centaurus A, but the mount ALT 6 ADN didn’t work well. 50% of the frames were having oblong stars in the RA direction.

So, I had to concentrate on the short focal lengths. Same as last year, I took SharpStar 94 EPDH and for the second rig carried by the iOptron SkyGuider, I chose Samyang 135 mm slowed down to f2.4. In the end, I managed to capture the Vela supernova remnant, the Statue of Liberty Nebula, and many more.

Here is the farm from a distance with Milky Way in the background:

Star trails roughly 3 hours, Canon 6D, iso 400, 87 exposures, each 2 minutes long, Sigma 28 Art f1.4

The chalet, which we rented last time was already booked, so we stayed in a room called “Hangar”, which is a little bit less photogenic compared to a chalet. Canon 6D, iso 1600, 12x15s, Sigma 28 Art f1.4:

Panorama of the Milky Way, Canon 6D, iso 1600, 6 frames, each 8x15s, Sigma 28 Art f1.4:

I even tried astrophotography with GoPro, but it seems this camera needs some light pollution:

After one week at Kiripotib, we rented a car and headed north to Etosha National Park, but before that, we stopped at the Hoba meteorite site, where the largest single-piece meteorite is resting. We were surprised that its 60 tons of weight didn’t cause a gigantic crater. It is assumed that this impact occurred 80,000 years ago, and most probably there was an ocean, so the meteorite just bounced a couple of times, till the kinetic energy was completely dissipated.

We slept one night at a nearby camp and the next day continued to Etosha National Park. Etosha opens the gates early with the sunrise and closes with the sunset. We decided to stay directly inside, so we don’t have to drive every day in and out. There are many camps inside Etosha, Okaukeojo, Namutoni, Halali, and Dolomite. We picked the first one, due to its central location. This allowed us to wake up really early and with the sunrise start to explore nearby water holes, where many animals can be seen.

What is definitely worth doing, is checking every day a log book located at the reception of each camp. People write their observations during the day and you can easily find out where the lions were spotted.

The rhinos can be seen mainly during the night. Therefore, it is an advantage to stay inside the part, because each camp has a water hole. Every evening something interesting happened. The animals just came, drank water, and left.

After a few nights in Etosha, we headed southwest to visit Twyfelfotein, which is a rock formation with ancient engravings. This site is part of UNESCO heritage. Approximately 6000 years ago hunters and gatherers engraved the animals, which they observed. Observing a lion or even a group of lions must have been very dangerous at that time. This makes me wonder, how come they observed such dangerous animals and survived to tell the tail.

From Twyfelfonein we moved to Swakopmund, a beautiful coastal town. On our way there we did a short hike to see The White Lady painting. When we approached Swakopmund the weather changed rapidly and the temperature dropped from 35 °C to only 12 °C. Luckily we had our winter jackets. Swakopmund is a vibrant town full of bars, restaurants clubs, and many touristic attractions. Probably the most exciting is the dune ride – where the desert meets the ocean. We wondered if we should try it with our rented car, but in the end, we decided to hire a guide, which was a very good decision. I was so happy that I don’t have to drive through the ocean.

Conclusions:

We had a wonderful time in Namibia again. This time we did less astrophotography and more traveling. Obviously, there is a reason to come back. Next time we would like to take a trip to Caprivi Strip, where the hippos can be seen, and from there it is not far from Victoria Falls. Namibia, we will definitely come back!


NGC 5367 Reflection Nebula in Centaurus

In the vast expanse of the Centaurus constellation, a celestial wonder awaits the gaze of astronomers and stargazers alike. NGC 5367, a mesmerizing reflection nebula, beckons us with its ethereal beauty and enigmatic allure. At the heart of NGC 5367 lies a stellar nursery, where new stars come to life. The nebula’s blue hues reflect the presence of young, hot stars, illuminating the surrounding gas and dust. NGC 5367, a reflection nebula in Centaurus, invites us to witness the cosmic artistry of light and dust. As we gaze upon this celestial wonder, we are reminded of the vastness and splendor of the universe, fueling our sense of wonder and exploration.

I had to dedicate a lot of imaging time to this deep-space object. Specifically, my camera was collecting 11 hours and 30 minutes, because all reflection nebulae need a lot of time to reveal all the details.

Technical details:

TelescopeSharpstar 94EDPH
Aperture94 mm
Focal length414 mm
MountRainbow Astro RST 135
AutoguidingZWO 178MM, QHY Mini Guide Scope
CameraZWO 2600MM @-10°C
CorrectorF4.4 Quad Reducer
FiltersAntlia V-Pro LRGB
Exposure138x300s, Gain 100, bin 1×1,
Date2023-05-18

Vela Supernova Remnant

The Vela Supernova Remnant Nebula emerged from the explosive demise of a massive star, scattering its outer layers across space. Filamentary structures, shaped by shockwaves and magnetic fields, intertwine throughout the nebula, painting an intricate cosmic tapestry.

Radiating vibrant hues of red, green, and blue, the nebula’s ionized gases create a stunning visual display. Observations reveal delicate wisps of gas, shock fronts, and remnants of the original star, including a pulsar emitting electromagnetic radiation.

The Vela Supernova Remnant Nebula showcases the grandeur of stellar cataclysms. Its intricate structure and vibrant colors captivate observers, urging us to ponder the forces that shape our universe. Explore this cosmic masterpiece and unlock the mysteries of our celestial past.

I had to revisit this deep-space object with a much shorter focal length and a much bigger CMOS sensor. Last year it simply didn’t fit in the field of view.

TelescopeSamyang 135 mm F2 @f2.4
Aperture67.5 mm
Focal length135 mm
MountiOptron Skyguider Pro
AutoguidingZWO 174MM, QHY Mini Guide Scope
CameraZWO 6200MC @-10°C
FiltersIDAS NBZ 2″
Exposure88x300s, Gain 100, bin 1×1,
Date2023-05-15

NGC 3576 The Statue of Liberty Nebula

Discover the breathtaking beauty of the Statue of Liberty Nebula, an ethereal masterpiece located 9,000 light-years away in the Carina constellation. Resembling the iconic symbol of freedom, this emission nebula captivates with its vibrant colors and intricate features.

The Statue of Liberty Nebula, or NGC 3576, showcases a cluster of young, massive stars at its core. Their intense radiation energizes the surrounding hydrogen gas, causing it to emit a mesmerizing red glow. Dark dust lanes intricately crisscross the nebula, adding contrast and creating a resemblance to the statue’s features.

The interplay of colors, from deep crimson to fiery orange and shimmering blue, adds depth and richness to the nebula’s allure.

The Statue of Liberty Nebula invites us to appreciate the universe’s splendor. Its resemblance to the symbol of liberty reminds us of our shared values. Gazing upon this celestial marvel, we are filled with wonder and inspired to explore the mysteries of the cosmos.

TelescopeSharpstar 94EDPH
Aperture94 mm
Focal length414 mm
MountRainbow Astro RST 135
AutoguidingZWO 178MM, QHY Mini Guide Scope
CameraZWO 2600MM @-10°C
CorrectorF4.4 Quad Reducer
FiltersAntlia SHO 3 nm
Exposure134x300s, Gain 100, bin 1×1,
Date2023-05-15

Sh2-308 Dolphin Nebula

Discover the awe-inspiring Dolphin Nebula, a captivating celestial cloud located 15,000 light-years away in the Delphinus constellation. Resembling a graceful leaping dolphin, this planetary nebula enchants observers with its vibrant colors and intricate structure.

The Dolphin Nebula is formed from the outer layers of a dying star, leaving behind a white dwarf at its core. The intense ultraviolet radiation emitted by the white dwarf illuminates the surrounding gases, creating a breathtaking display of red, green, and blue hues. Delicate filaments of gas intertwine, sculpted by powerful stellar winds and radiant energy.

Its mesmerizing colors indicate the presence of hydrogen, ionized oxygen, and helium. This celestial oasis serves as a reminder of the vastness and wonders of the universe, inspiring a sense of awe and exploration.

The Dolphin Nebula showcases the beauty and complexity of the cosmos, inviting us to contemplate the mysteries beyond our world. Its celestial symphony of colors and structure leaves us humbled by the grandeur of the universe and eager to explore its secrets.

TelescopeSharpstar 94EDPH
Aperture94 mm
Focal length414 mm
MountRainbow Astro RST 135
AutoguidingZWO 178MM, QHY Mini Guide Scope
CameraZWO 2600MM @-10°C
CorrectorF4.4 Quad Reducer
FiltersAntlia SHO 3 nm
Exposure98x300s, Gain 100, bin 1×1,
Date2023-05-13

Chasing Darkness in Namibia 2022

As a passionate astrophotographer, I have been dreaming about the southern sky. Obviously, the best conditions are in Chile, the home of ESO European Southern Observatory. I read a couple of the travel blogs from Chile and yes this is the place to be with a telescope. However, I live in Central Europe, and getting to Chile is not that straightforward. Once I was browsing through the APOD (astronomy picture of the day) and found a beautiful picture of the Rho Ophiuchi. By reading the credits, I found out that this picture was taken in Namibia, specifically in the Kalahari desert. Well, I was hooked. I found out that astro-tourism is a regular business in Namibia. There are many farms offering telescopes/mounts to rent. The weather in winter (May – September) is basically guaranteed (here is the webpage with records of the cloud cover). Moreover, it’s very dry, so the sky is transparent. In other words, the conditions for astrophotography are excellent. I quickly started to search for accommodation during the next new Moon phase. A couple of farms were already booked out, but I found a place at Kiripotib astro farm. I cannot describe how lucky I was. The farm Kiripotib is run by a couple Hans and Claudia von Hase, very nice and friendly people. Not just them, but their whole stuff – Abigale, Caterina, Mike, and others were excellent hosts. The farm has two seasons. Summer (European winter) is a gliding season. There are two runways directly next to the farm. Winter (European summer) is an astro-season. For this purpose, there are 12 platforms and one roll-off roof observatory roughly 300 m from the farm. The platforms are equipped with 220 V sockets and each has a solid pier, wind protection, a table, and chairs. Basically, all that is required for serious astrophotography. Moreover, there is a wifi coverage there. The signal is not strong, but I was able to download a driver directly from the platform. For each new Moon phase, a guide comes from Germany to take care of the visitors to make sure that the rented equipment will be properly installed. For our stay, Stefan Lenz was our guide. He is a very experienced astrophotographer who won APOD last year.

As you can see, I gave up on the Newtonian portable telescope and replaced it with a refractor. The reason is that I bought a new camera for this trip. Specifically, ZWO ASI 2600MM, which has very small pixels. I was not able to get the stars round at the edges even with a perfectly collimated telescope, no matter which coma corrector I used. I simply gave up and ordered SharpStar 94 EPDH with a focal reducer. I sacrificed the aperture, but the stars are small and round in any corner of an APS-C sensor. I also took the portable refractor WO RedCat 51, combined with ZWO ASI 071MC. I wanted to rent the Newtonian telescope at Kiripotib, but it was already booked, so the only option was to rent Meade 10″ ACF. Stefan helped me to set it up and I used this scope mainly for galaxies like NGC 5128 Centaurus A Galaxy or NGC 6744 Galaxy or the planet Saturn.

A typical day at Kiripotib looks like that: late breakfast at 10:30. After breakfast one can take a nap or try pro process the pictures which were taken the previous day. In the afternoon coffee with a cake is served at 14:00. There are many things to do after the cake. For example, one can hike to the aloe trees:

Or to take a biking trip and meet the wildlife.

The dinner is served at 18:00 and around 19:00 it was already getting dark. A short walk to the platform and the show can start. The Milky Way was rising from the east. Honestly, I haven’t seen such a bright core in my life. It was a stunning view and I managed to capture the whole arc. However, everything didn’t go according to plan. First two nights I was struggling with my new laptop. The default power mode of Windows 11 is set to go to sleep after 20 minutes even if plugged in. Since I was managing 3 mounts, it took me a while to figure it out. Another problem was the polar alignment. In the northern hemisphere, we have Polaris. It is a very bright star, which can be located easily. However, in the southern hemisphere, there is Sigma Octantis, which should serve the purpose. But it is not a bright star and there are many similar stars, having the same brightness. For RST 135 mount I took PoleMaster. With this device it was doable, but it took me an hour to find the pattern. The situation was much more challenging with the iOptron Skyguider Pro. When I looked through the polar scope, I was completely unable to find the Sigma Octantis. The first two nights I was just guessing where the Southern celestial pole is. Hint for anyone who wants to do astrophotography in the Southern hemisphere for the first time: get prepared for the struggle with the polar alignment! Fortunately, I had the old ASIAir with me. There is a simple procedure for the polar alignment by plate solving of two pictures mutually rotated. This was a life-saving feature. The third issue I had was the automatic focuser. I knew that the refractors suffer from a focal drift if the temperature changes. Therefore, I equipped the SharpStar with ZWO electronic focuser. However, one needs to set up how many steps will be used for the focus sweep. I set up too small steps and in some cases, the perfect V-curve was not found, so some pictures were not sharp. I found a tutorial on YouTube on how to set it up properly. After solving all these issues I was finally ready for serious astrophotography. The primary target was obviously the Eta Carina nebula – a highlight of the Southern hemisphere. Secondary targets were NGC 5128 Centaurus A galaxy, NGC 6744 galaxy, NGC 6752 Globular Cluster, IC 2944 Running Chicken Nebula, NGC 5139 Omega Centauri, NGC 292 Small Magellanic Cloud, IC 4628 Prawn Nebula, NGC 2060 Tarantula Nebula, Norma Star Cloud, IC 2602 Southern Pleiades, Vela Supernova Remnant, NGC 6357 Lobster Nebula NGC 6334 Cat’s Paw Nebula, NGC 6188 Rim Nebula. One night I left the tripod with Canon EOS 6D + Samyang 24mm@f2.8 in front of the platform, set iso 1600, exposure 120s, and let it shoot until the battery died. It made 135 photos and by combining them I got such lovely star trails:

It was a very intensive 9 nights not disturbed by the clouds, wind, or light pollution. The conditions significantly exceeded my expectations. I have to admit that I did astrophotography for the first time in the proper place. There are still some deep-space objects on my list, so there is a reason to come back next year.

Final day and packing the rigs. Stefan came to help me 🙂

On the last day, I took a picture of the house where we stayed with the Milky Way in the background:

Namibia is not just an astrotourism, most people visit Namibia for different reasons. There is Etosha Nationalpark in the northern part of Namibia where wild animals can be seen, Fish River Canyon (Southern Namibia) is the largest canyon in Africa. There are definitely many places to visit. Unfortunately, we had only 3 days to travel around, so we decided to hire a car and make a trip to Sossusvlei. It was a very spectacular place. The deep blue color of the sky is mixed with the orange dunes.

Conclusions

There are still some deep space objects in the Southern sky, which I haven’t captured. Moreover, there are many places in Namibia, which I want to visit. We will definitely come back.


NGC 6188 Rim Nebula

NGC 6188 is sometimes called The Fighting Dragons of Ara. As a fan of Game of Thrones or Hobit, I simply had to capture this beauty. Two dragons are clearly visible in the middle. Their heads are illuminated by the open cluster NGC 6193. I knew that this nebula is dim, so I dedicated a lot of time to it. Specifically, I stacked 86 narrow band pictures, each 5 minutes long.

Update 9.2.2023. I am happy to announce that this photo won Czech astrophotography of the month. I submitted several pictures already and finally, I managed. I am very happy.

TelescopeSharpstar 94EDPH
Aperture94 mm
Focal length414 mm
MountRainbow Astro RST 135
AutoguidingZWO 174MM, QHY Mini Guide Scope
CameraZWO 2600MM @-10°C
CorrectorF4.4 Quad Reducer
FiltersAntlia Ha, OIII, SII 3 nm
Exposure86x300s, Gain 100, bin 1x1,
Date2022-05-30

And here is a photo of the same object, just with a shorter focal length.

TelescopeWilliam Optics RedCat 51/250 f4.9
Aperture51 mm
Focal length250 mm
MountiOptron Skyguider Pro
AutoguidingZWO 178MM, QHY Mini Guide Scope 30/130 mm
CameraZWO ASI071 MC Pro @-10 °C
FiltersAntlia Dual Band 5 nm
Exposure72x300s, ISO 1600
Date2022-06-01

NGC 6357 Lobster Nebula NGC 6334 Cat’s Paw Nebula

Both Lobster and Cat’s Pas nebulae are located in the constellation Scorpius, both are approximately 5’500 light-years from us. I tried to photograph the Lobster Nebula before, but it wasn’t an easy target due to very low southern declination. From the southern hemisphere, it is much easier. So I took the opportunity when I was in Namibia and tried to capture both nebulae in one shot.

The composition of this picture was not correctly selected, but in the end, both are in the field of view. Here is the picture processed in the “fake” Hubble palette:

And here is the bi-color version (R-Ha, G-OIII, B-OIII)

TelescopeSharpstar 94EDPH
Aperture94 mm
Focal length414 mm
MountRainbow Astro RST 135
AutoguidingZWO 174MM, QHY Mini Guide Scope
CameraZWO 2600MM @-10°C
CorrectorF4.4 Quad Reducer
FiltersAntlia Ha, OIII, SII 3 nm
Exposure62x300s, Gain 100, bin 1x1,
Date2022-06-01