Rainbow Astro RST135 – AstroFotoBlog

Sh2-91 supernova remnant in Cygnus

October 9, 2023 JakubK

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In my previous project, where I created a mosaic of the Cygnus constellation, I discovered a faint supernova remnant near the star Albireo. Recognizing the significance of this finding, I committed to giving this celestial object more attention. I directed my Askar ACL telescope to these coordinates and gathered additional data over several hours.

Sh2-91, also identified as LBN 147, is a supernova remnant situated close to Albireo. Unlike its more well-known visual neighbor, the Veil Nebula, Sh2-91 is infrequently captured in deep-space photography. According to available literature, this nebula spans 230 light-years in diameter and is approximately 20 thousand years old.

Aware of the complexity of this target, I understood that an extensive integration time was necessary to highlight its intricate structures. Hence, I dedicated seven clear nights to capturing data for this deep-space object, accumulating nearly 14 hours of valuable data.

Telescope	Askar ACL 200 F4
Aperture	50 mm
Focal length	200 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 178MM, QHY Mini Guide Scope
Camera	ZWO 6200MC @-10°C
Filters	Antlia ALP-T Dualband 5nm
Exposure	167x300s, Gain 100, bin 1×1,
Date	2023-09-15 2023-09-17 2023-09-19 2023-10-04 2023-10-06 2023-10-07 2023-10-08

Cygnus

September 20, 2023 JakubK

Constellation

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Albireo Aljanah Antlia ALP-T Dualband 5nm Askar ACL200 Constellation Crescent nebula Cygnus Cygnus Star Cloud Deneb Fawaris LBN 147 North America Nebula Pelican nebula Rainbow Astro RST135 Sadr Sadr Region Swan Veil nebula

Cygnus is a prominent constellation in the northern hemisphere’s summer and autumn skies. Known as the “Swan,” it is easily recognizable due to its distinctive shape, which some people interpret as a flying bird with outstretched wings. In Greek mythology, Cygnus is often associated with the story of Zeus and the transformation of his lover, the beautiful mortal named Leda, into a swan.

The constellation Cygnus is home to several interesting celestial objects. One of the most famous is the Northern Cross, a prominent asterism formed by the brightest stars in the constellation. Deneb (upper right corner), is the brightest star in Cygnus.

In addition to stars, Cygnus contains various deep-sky objects. The North America Nebula (NGC 7000) and the Pelican Nebula (IC 5070) are two emission nebulae located in the region of Deneb. These nebulae are often photographed due to their striking shapes, resembling the continent of North America and a pelican, respectively. Moreover, two supernova remnants can be found in this constellation. The Veil Nebula (upper left) knows probably every amateur astrophotographer, but to find out that there is another remnant called LNB 147 (lower left) was a surprise for me. This one deserves more attention, and if the weather allows, I will try to capture more light coming from there.

Cygnus is also traversed by the Milky Way, making it a rich region for observing star clusters, nebulae, and other deep-sky wonders. Overall, the constellation Cygnus holds a special place in both mythology and astronomy, offering stargazers a captivating celestial experience.

The pictures are a mosaic of 3×4 frames. In total, I captured 342 frames, each 5 minutes long (integration time 28 hours 30 minutes), which were taken during 10 nights in August and September. This makes it my biggest astrophotography project so far.

Telescope	Askar ACL 200 F4
Aperture	50 mm
Focal length	200 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 178MM, QHY Mini Guide Scope
Camera	ZWO 6200MC @-10°C
Filters	Antlia ALP-T Dualband 5nm
Exposure	342x300s, Gain 100, bin 1×1,
Date	2023-09-12 2023-09-15 2023-09-05 2023-09-06 2023-08-23 2023-08-24 2023-08-16 2023-08-21 2023-08-22 2023-08-11 2023-08-22 2023-08-23

NGC 5367 Reflection Nebula in Centaurus

May 18, 2023 JakubK

Reflection nebula

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Antlia V-Pro RGB Centaurus Kiripotib Namibia NGC 5367 NGC5367 Rainbow Astro RST135 Reflection Nebula in Centaurus Sharpstar 94EDPH ZWO ASI 2600MM

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:

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 178MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia V-Pro LRGB
Exposure	138x300s, Gain 100, bin 1×1,
Date	2023-05-18

NGC 3576 The Statue of Liberty Nebula

May 15, 2023 JakubK

H II nebula

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Antlia 3 nm Carina DSO Kiripotib Namibia Namibia 2023 Nebula NGC 3576 NGC3576 Rainbow Astro RST135 Sharpstar 94EDPH Statue of Liberty Nebula 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.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 178MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia SHO 3 nm
Exposure	134x300s, Gain 100, bin 1×1,
Date	2023-05-15

Sh2-308 Dolphin Nebula

May 13, 2023 JakubK

H II nebula

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Antlia 3 nm Dolphin Nebula Dolphin-Head Nebula DSO Kiripotib Namibia Nebula Rainbow Astro RST135 Sh2-308 Sharpstar 94EDPH ZWO ASI 2600MM

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.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 178MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia SHO 3 nm
Exposure	98x300s, Gain 100, bin 1×1,
Date	2023-05-13

Sun 2023-03-18

March 19, 2023 JakubK

Solar system

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Double Stack Lunt 60mm Rainbow Astro RST135 Solar system Sun ZWO ASI 178MM

The sun is not shining on my terrace the whole winter. There is a small hill in the south direction, which blocks the sunshine. The situation gets better during the spring. The first rays show up in April when the sun gets higher in the sky. This weekend I managed to capture a few of them.

Quick description of the processing: Image acquisition in FireCapture. In total 4000 frames were recorded. Selection of 12% best pictures and stacking was done in AutoStalkert. The histogram of the picture was modified into an A-curve in ImPPG. The color was added in Pixinsight and the final adjustment in Adobe Lightroom.

Telescope	Lunt 60mm
Aperture	60 mm
Focal length	420 mm
Mount	Rainbow Astro RST 135
Camera	ZWO ASI 178MM
Filters	Double stack
Exposure	4000x25ms, Gain 0, bin 1×1, 12% selected
Date	2023-03-18

Comet C/2022 E3 (ZTF)

February 5, 2023 JakubK

Solar system

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C/2022 E3 (ZTF)C2022E3ZTF comet Comet C/2022 E3 (ZTF)Rainbow Astro RST135 Sharpstar 94EDPH Solar system ZWO ASI6200MC

This comet is all over the internet right now. Even mainstream media are reporting about the “Neandertal” comet with the poetic name C/2022 E3 (ZTF), which visited us last time 50’000 years ago. I was somehow losing hope to see or take a picture of this comet because the weather was constantly cloudy since October. However, on Sunday 30.1.2023 the sky cleared and I had a time window till 2 o’clock when the clouds rolled in. Unfortunately, the whole event was partially ruined by the Moon in the first quarter, so the best conditions occurred after midnight when the Moon was setting. Anyway, if you want to know why it has such a name, which resembles the password of the wifi at a hotel lobby? In fact, the comet’s naming follows the conventions. The letter C stands for a non-periodic comet, 2022 is the year of discovery, E refers to the month of discovery (first half of March), number 3 means a third comet discovered in this part of the month and ZTF stands for who or what discovered the comet. This specific comet was discovered by Zwicky Transient Facility. And why the nucleus of the comet glows green? Because most of the comets contain dicarbone (C2) molecules, which break apart by solar radiation, and during this process, the energy in form of light is released at carbon specific wavelength of 518 nm, which is a green visible light.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 178MM, QHY Mini Guide Scope
Camera	ZWO 6200MC @-10°C
Corrector	F4.4 Quad Reducer
Filters	no
Exposure	51x120s, Gain 100, bin 1×1,
Date	2023-01-30

And here is an animation, which goes back and forth. For half of the animation (forward movement) I used 38 frames, each 2 minutes long, which means 76 minutes in total. This gives you an idea of how quickly the comet moves with respect to the background.

Solar eclipse

October 26, 2022 JakubK

Solar system

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Double Stack Lunt 60mm Rainbow Astro RST135 Solar eclipse Solar system Sun ZWO ASI 178MM

October 2022 offered several spectacular astronomical events in the Solar system. Recently I captured the transit of the moon Io across Jupiter and on the 25th a partial solar eclipse occurred. I was ready, the forecast was optimistic, but the clouds were still blocking the sun. Fortunately, a small gap between the clouds occurred and the sun for visible for a short moment. I didn’t hesitate a bit and focused my solar telescope, adjusted the tilter, and the pressure tuner. As soon as the picture acquisition started, the clouds rolled in again. In total, I managed to store only 876 pictures, so I selected 35% best ones and stacked them together.

Later on, the clouds cleared completely, so I got the opportunity to capture the sun properly.

Telescope	Lunt 60mm
Aperture	60 mm
Focal length	420 mm
Mount	Rainbow Astro RST 135
Camera	ZWO ASI 178MM
Filters	Double stack
Exposure	4000x17ms, Gain 36, bin 1x1, 33% selected
Date	2022-10-25

IC1396 Elephant Trunk Nebula

October 5, 2022 JakubK

H II nebula

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Cepheus DSO Elephant trunk nebula IC1396 Narrow band Nebula Rainbow Astro RST135 Sharpstar 94EDPH ZWO ASI 2600MM

Elephant Trunk Nebula is my favorite nebula in the constellation Cepheus. I photographed it many times using many different telescopes. The focal length was either too short or too long. Now I tried a focal length of 414 mm and an APS-C sensor, to frame it. I photographed this nebula for two nights, the total integration time is nearly 11 hours.

And here are the stars processed out:

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia Ha, OIII, SII 3 nm
Exposure	129x300s, Gain 100, bin 1x1,
Date	2022-10-05

NGC 6888 Crescent nebula

September 6, 2022 JakubK

H II nebula

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Antlia 3 nm Crescent nebula Cygnus DSO HII region HOO Narrow band Nebula NGC 6888 NGC6888 Rainbow Astro RST135 Sharpstar 94EDPH SHO ZWO ASI 2600MM

The Crescent nebula is an HII region in the constellation Cygnus. I photographed this deep-space object before with a relatively long focal length. The Crescent nebula is not the only nebula in the constellation Cygnus. In fact, this constellation is overpopulated with either emission or planetary nebulae. This is the reason why I picked a shorter focal length than before (wider field of view), positioned the Crescent nebula in the corner of the CMOS chip, and let the photos be collected for 3 subsequent nights. In total, I exposed 153 photos, each 5 minutes long. This means nearly 13 hours of integration time, which makes it one of the longest total exposure I spent on a single deep-space image.

Hubble palette image (SHO):

Bi-color image (HOO):

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia Ha, OIII, SII 3 nm
Exposure	153x300s, Gain 100, bin 1×1,
Date	2022-09-06

NGC7000 North America Nebula

August 26, 2022 JakubK

H II nebula

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Cygnus DSO Emission nebula HII region Nebula NGC7000 North America Nebula Rainbow Astro RST135 Sharpstar 94EDPH ZWO ASI 2600MM

I am back from a very intensive trip to Namibia. The report is still pending because I post-processed the data the whole summer. Please stay tuned. Anyway, a few days in August was nice weather, so I took the SharpStar 94 EPDH telescope and pointed into the constellation Cygnus. There are many deep-space objects in this constellation because it is on the galactic plane. Probably the brightest and the most spectacular is North Americal Nebula, sometimes called the Cygnus wall. Since I live in a light-polluted area, I used narrow-band filters to create this image, which is a combination of Hydrogen-alpha (Ha) in the green channel, oxygen III (OIII) in the blue channel, and sulfur II (SII) in the red channel.

And here is a simplified bi-color variant (red – Ha, green OIII, blue OIII):

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia Ha, OIII, SII 3 nm
Exposure	96x300s, Gain 100, bin 1x1,
Date	2022-08-26

Sun transit of ISS 2022-08-21

August 21, 2022 JakubK

Solar system

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Double Stack International Space Station ISS ISS transit Lunt 60mm Rainbow Astro RST135 Sun Sun transit ZWO ASI 178MM

On 21st of August 2022 was a special day. Around noon the international space station made the transit across the Sun. I was ready and managed to capture it. The transit itself took only 0.4 seconds and the frame rate of my camera was only 20 FPS, so I captured only 8 frames. In total, I captured 2000 frames, out of which I selected the best 75% and stacked them together. The ISS was added from the transit frames as separated layers.

And here is just the stack without ISS:

Telescope	Lunt 60mm
Aperture	60 mm
Focal length	420 mm
Mount	Rainbow Astro RST 135
Camera	ZWO ASI 178MM
Filters	Double stack
Exposure	2000x3.5ms, Gain 149, bin 1x1, 75% selected
Date	2022-08-21

NGC 6188 Rim Nebula

June 1, 2022 JakubK

H II nebula

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Ara DSO iOptron Skyguider Pro Kiripotib Namibia Nebula NGC6188 Rainbow Astro RST135 Rim Nebula Sharpstar 94EDPH The Fighting Dragons of Ara William Optics RedCat 51 ZWO ASI 2600MM ZWO ASI071MC Pro

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.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia Ha, OIII, SII 3 nm
Exposure	86x300s, Gain 100, bin 1x1,
Date	2022-05-30

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

Telescope	William Optics RedCat 51/250 f4.9
Aperture	51 mm
Focal length	250 mm
Mount	iOptron Skyguider Pro
Autoguiding	ZWO 178MM, QHY Mini Guide Scope 30/130 mm
Camera	ZWO ASI071 MC Pro @-10 °C
Filters	Antlia Dual Band 5 nm
Exposure	72x300s, ISO 1600
Date	2022-06-01

NGC 6357 Lobster Nebula NGC 6334 Cat’s Paw Nebula

June 1, 2022 JakubK

H II nebula

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Cat's Paw nebula DSO HII region Kiripotib Lobster nebula Namibia Nebula NGC 6357 NGC6334 Rainbow Astro RST135 Scorpius Sharpstar 94EDPH ZWO ASI 2600MM

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)

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia Ha, OIII, SII 3 nm
Exposure	62x300s, Gain 100, bin 1x1,
Date	2022-06-01

IC 2602 Southern Pleiades

June 1, 2022 JakubK

Open cluster

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Cluster DSO IC2602 Kiripotib Namibia Open cluster Rainbow Astro RST135 Sharpstar 94EDPH Southern Pleiades ZWO ASI 2600MM

Southern Pleiades, just like the northern Pleiades is an open cluster, located in the constellation Carina. Unlike the northern sibling, this cluster is not associated with nebulosity. However, some dark nebulae can be found around. This is because the cluster is located just a few degrees from the galactical equator.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia LRGB
Exposure	43x180s RGB, Gain 100, bin 1x1,
Date	2022-06-01

NGC 2060 Tarantula Nebula

May 31, 2022 JakubK

H II nebula

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Kiripotib Large Magellanic Cloud LMC Namibia NGC 2060 NGC2060 Rainbow Astro RST135 Sharpstar 94EDPH Tarantula Nebula ZWO ASI 2600MM

Our galaxy Milky Way is surrounded by two dwarf galaxies. Small Magellanic Cloud (SMC) and Large Magellanic Cloud (LMC). SMC I captured recently by the relatively short focal length of 250 mm. LMC is much larger, so it wouldn’t fit into the field of view of my 94 mm refractor. However, LMC is full of very interesting objects, just like the Tarantula Nebula. I used the HaLRGB technique to make the nebulosity pop.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia HaLRGB
Exposure	16x180s HaL, 10x180s RGB, Gain 100, bin 1x1,
Date	2022-05-31

IC 4628 Prawn Nebula

May 31, 2022 JakubK

H II nebula

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DSO HII region IC4628 Kiripotib Namibia Nebula Prawn Nebula Rainbow Astro RST135 Scorpius Sharpstar 94EDPH ZWO ASI 2600MM

IC 4628, also called Prawn Nebula is an HII region in the constellation Scorpius. Due to very low southern declination, it is poorly visible even from southern Europe. The southern hemisphere is obviously a better place to observe/photograph this deep-space object for example in Namibia, where this beautiful nebula rises very high in the sky. The open cluster on the left side is called the Northern Juwel box cluster.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia Ha, OIII, SII 3 nm
Exposure	39x300s, Gain 100, bin 1x1,
Date	2022-05-31

NGC 5139 Omega Centauri

May 30, 2022 JakubK

Globular cluster

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Centaurus Cluster DSO Globular cluster NGC5139 Omega Centauri Rainbow Astro RST135 Sharpstar 94EDPH ZWO ASI 2600MM

NGC 5139 Omega Centauri is the biggest globular cluster in Milky Way. Even though this cluster is approximately 17 thousand light-years away from Earth, it can be seen even by unaided eyes. This is because it contains roughly 10 million stars. I managed to see this cluster in a very dark place in Namibia and I must say, it’s brighter than any other object in the sky.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia LRGB
Exposure	38x180s L, 12x180s RGB, Gain 100, bin 1x1,
Date	2022-05-30

IC 2944 Running Chicken Nebula

May 29, 2022 JakubK

H II nebula

1 Comment

Centaurus DSO HII region IC 2944 IC 2944 Running Chicken Nebula IC2944 Kiripotib Namibia Nebula Rainbow Astro RST135 Running Chicken Nebula Sharpstar 94EDPH ZWO ASI 2600MM

IC 2944 Running Chicken Nebula is an H II region located in the constellation Centaurus. It’s a galactic neighbor of the Carina Nebula because they both belong to the Sagittarius spiral arm of the Milky Way Galaxy. I must admit that this was my secondary nebula target for my trip to Namibia. Therefore, I didn’t dedicate much time – only 3 hours. However, the details popped out, so overall, I am happy with this “fake” Hubble palette picture.

And here is an even more “fake” picture, where the stars are completely removed. However, the nebulosity gained a 3D-like look.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia Ha, OIII, SII 3 nm
Exposure	36x300s, Gain 100, bin 1x1,
Date	2022-05-29

NGC 6752 Globular Cluster

May 29, 2022 JakubK

Galaxy Globular cluster

1 Comment

DSO Globular cluster Kiripotib Namibia NGC 6752 NGC6752 Pavo Rainbow Astro RST135 Sharpstar 94EDPH ZWO ASI 2600MM

NCG 6752 is a globular cluster located in the constellation Pavo. It contains approximately 100’000 stars and it is 13’000 light-years from Earth. Like most recently captured deep space objects, this cluster is visible only from the southern hemisphere.

My intention was to capture the cluster with the galaxies surrounding it, but since this part of the sky is full of stars, the galaxies are almost hidden.

Telescope	Sharpstar 94EDPH
Aperture	94 mm
Focal length	414 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	F4.4 Quad Reducer
Filters	Antlia LRGB
Exposure	36x180s L, 10x180s RGB, Gain 100, bin 1x1,
Date	2022-05-29

AstroFotoBlog

Tag: Rainbow Astro RST135

Sh2-91 supernova remnant in Cygnus

Cygnus

NGC 5367 Reflection Nebula in Centaurus

Technical details:

NGC 3576 The Statue of Liberty Nebula

Sh2-308 Dolphin Nebula

Sun 2023-03-18

Comet C/2022 E3 (ZTF)

Solar eclipse

IC1396 Elephant Trunk Nebula

NGC 6888 Crescent nebula

NGC7000 North America Nebula

Sun transit of ISS 2022-08-21

NGC 6188 Rim Nebula

NGC 6357 Lobster Nebula NGC 6334 Cat’s Paw Nebula

IC 2602 Southern Pleiades

NGC 2060 Tarantula Nebula

IC 4628 Prawn Nebula

NGC 5139 Omega Centauri

IC 2944 Running Chicken Nebula

NGC 6752 Globular Cluster

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