Rainbow Astro RST135 – Page 2

NGC 3372 Eta Carina Nebula

May 28, 2022 JakubK

H II nebula

2 Comments

Eta Carina Nebula is the southern hemisphere’s most prominent deep space object. In fact, this nebula is the reason why I packed all my portable astro-gear and flew to Namibia. Carina is approximately 4x brighter than the Orion nebula, which could be considered a highlight of the northern hemisphere. Moreover, it’s much larger. The nebula is a combination of emission and dark nebulae, located in the constellation Carina and it’s roughly 8500 light-years away from us.

It was a struggle to get the rig working in Namibia, but after two nights I managed and the next day, when I processed the pictures, a big smile appeared on my face. Well done, mission accomplished.

During our stay at Kiripotib Namibia, the other guest rented a 14.5-inch Dobsonian telescope and allowed us to have a look at the Carina (thank you so much, Peter). It was a simply spectacular view. Such a huge aperture combined with TeleVue eyepieces – WOW effect was there. Moreover, the Dobsonian had a filter wheel with OIII, UHC, and H-beta filters. Just by turning it, one could see a completely different nebulosity. I was really happy to see this beautiful deep space object with my own eyes.

Here is the processed picture in the Hubble color palette.

And here is 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	87x300s, Gain 100, bin 1x1,
Date	2022-05-27

NGC2264 Cone nebula

March 10, 2022 JakubK

H II nebula

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Cone nebula DSO Emission nebula HII region MaxField coma corrector Monoceros Narrow band Nebula Newton 150/600 NGC2264 Rainbow Astro RST135 ZWO ASI 2600MM

The Cone Nebula is a molecular cloud of excited hydrogen gas, located in the constellation Monoceros. It belongs to the group of nebulae, which can be observed/photographed during the winter in the northern hemisphere. I tried to capture this object a long time ago without success. I must say, it’s a very difficult one, so I attempted this time with new equipment. Specifically new extra, super, mega narrowband filters, having a bandwidth of only 3 nm. Combined with a small 6″ Newtonian telescope I was able to generate a pretty decent picture.

Here is a fake Hubble palette edit:

And here is a more natural-looking bi-color edit:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	MaxField coma corrector
Filters	Antlia Ha, OIII, SII 3 nm
Exposure	142x300s, Gain 100, bin 1x1,
Date	2022-03-09

IC2177 Seagull Nebula

January 23, 2022 JakubK

H II nebula

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Canis Major DSO Emission nebula HII region IC2177 Monoceros Nebula Rainbow Astro RST135 Seagull Nebula William Optics RedCat 51 ZWO ASI071MC Pro

I am not a huge fan of birding, but I captured this “Seagull” with pleasure. Initially, I noticed on my wide-angle photo, that there is a giant nebula north of Sirius. I checked in Stellarium what would be the optimal focal length and found out that this is a perfect target for William Optics RedCat combined with an APS-C sensor. Moreover, I was able to fit the M50 open cluster into the field of view (on the left side).

Telescope	William Optics RedCat 51/250 f4.9
Aperture	51 mm
Focal length	250 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 178MM, QHY Mini Guide Scope 30/130 mm
Camera	ZWO 071 Pro @-10°C
Corrector	no
Filters	Optolong L-eXtreme 2"
Exposure	85x180s, gain 95
Date	2022-01-23

NGC1499 California Nebula

January 23, 2022 JakubK

H II nebula

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California nebula DSO Emission nebula Nebula NGC1499 Optolong L-eXtreme Perseus Rainbow Astro RST135 William Optics RedCat 51 ZWO ASI071MC Pro

California Nebula is a cloud of ionized hydrogen gas (HII region), which can be found in the constellation Perseus. The nebula is 1320 light-years away from Earth and it is 100 light-years long. Visual observation is very difficult, due to very low brightness. The first person who spotted this nebula was Edward Emerson Barnard in 1885. Since it is an emission nebula, it can be relatively easily photographed even under the light-polluted sky, with help of a narrowband filter.

I always wanted to capture this nebula, but the focal length must be relatively short. This is a perfect opportunity to test the William Optics RedCat. This time not with Canon EOS 6Da, but I attached a cooled astro camera ZWO ASI071 and placed the Optolong L-eXtreme dual-band filter.

Telescope	William Optics RedCat 51/250 f4.9
Aperture	51 mm
Focal length	250 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 178MM, QHY Mini Guide Scope 30/130 mm
Camera	ZWO 071 Pro @-10°C
Corrector	no
Filters	Optolong L-eXtreme 2"
Exposure	105x180s, gain 95
Date	2022-01-23

NGC 2237 Rosette Nebula

January 12, 2022 JakubK

H II nebula

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DSO Emission nebula HII region Monoceros Nebula Newton 150/600 NGC 2237 NGC2237 Rainbow Astro RST135 Rosette nebula ZWO ASI 2600MM

I couldn’t imagine a better final object for the winter season. Rosette Nebula is my favorite H II region in the constellation Monoceros. At the same time, I used this deep-space object to test my portable Newtonian telescope with my new monochromatic camera ZWO ASI 2600MM. Well compared to the previous setup, this camera has much smaller pixels, which increases the requirements for the optics, specifically for the coma corrector. I am not happy with the star shape and for my planned trip to Namibia, I will try to find a portable refractor.

Here is a “fake” Hubble palette (SII, Ha, OIII):

And here more realistic bi-color variant (Ha, OIII, OIII)

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, QHY Mini Guide Scope
Camera	ZWO 2600MM @-10°C
Corrector	MaxField coma corrector
Filters	Antlia Ha, OIII, SII 3 nm
Exposure	94x300s, Gain 100, bin 1×1,
Date	2022-01-12

Sun

August 21, 2021 JakubK

Solar system

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Lunt 60mm Rainbow Astro RST135 Single stack Solar system Sun ZWO ASI 178MM

I always wanted to capture the brightest object in the sky. However, it’s not as easy as you think. If you purchase any “normal” telescope, many unmissable warnings are covering the whole telescope not to point it to the sun, unless you want to get blind. This means if you’re going to observe or photograph the Sun, you need a dedicated telescope. There are basically two companies manufacturing dedicated solar telescopes: Coronado and Lunt. The third option is purchasing any refractor and using the DayStar filter QUARK. The third option is probably the cheapest way (depending on the selection of the refractor), but it has a feature, which I don’t like. The filter is equipped with the Barlow lens. This makes it nearly impossible to observe or photograph the whole disk. This was for me no-go and I started to decide between Coronado and Lunt. Based on pictures on astrobin.com I decided on Lunt. The next dilemma is the aperture – the bigger the better, but in the case of solar telescopes, the price grows exponentially with the aperture. In the end, I decided on 60 mm. Next decision: single or double stack. Here again the more stack the better, at least in terms of what you can see on the surface. Here is a very nice feature of the small Lunt telescope – the double stack is basically achieved by screwing the front filter in front of the telescope. This is a very fast way to turn the single stack, which is great for observation of the prominences, into the double stack, which is excellent for observing the surface. So I decided on the double stack.

The first experience with the single stack was great. The prominences were nicely visible. Moreover, even the surface had a clearly detectable structure. Then I screwed the double stack in front and the troubles started. Basically, the image was significantly worse compared to the single stack. After the discussion with Lunt, I am returning the front filter and waiting for the replacement.

Here is the stack of 540 images captured by FireCapture, processed by Autostakkert!, Registax, PixInsight, and LightRoom.

Technical details:

Telescope	Lunt 60mm
Aperture	60 mm
Focal length	420 mm
Mount	Rainbow Astro RST 135
Autoguiding	no
Camera	ZWO ASI 178MM
Corrector	no
Filters	No
Exposure	1000x7ms, Gain 0, bin 1x1,
Date	2021-08-21

NGC 253 Sculptor Galaxy

September 21, 2020 JakubK

Galaxy

5 Comments

DSO Galaxy Kythira MaxField coma corrector Newton 150/600 NGC253 Rainbow Astro RST135 Sculptor Sculptor Galaxy Silver Coin galaxy Silver Dollar Galaxy ZWO ASI071MC Pro

Every time when I chase the darkness in southern lands, I try to capture some deep space objects in the southern hemisphere, which are not visible from Central Europe. One of these objects is the Sculptor Galaxy, which can be found, surprisingly, in the constellation Sculptor (south from Aquarius). Here are some features: it is approximately 11 million light-years away from us, it has roughly 90 000 light-years in diameter (similar to Milky Way) and it is characteristic by the intense star formation. This galaxy is sometimes called Silver Coin or Silver Dollar Galaxy, but I pushed the colors into the yellow spectra, therefore it looks like a gold coin.

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	127x180s, Gain 94, bin 1x1,
Date	2020-09-21

NGC 6559 Nebula

September 21, 2020 JakubK

H II nebula

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Dark nebula DSO HII region Kythira MaxField coma corrector Nebula Newton 150/600 NGC6559 Rainbow Astro RST135 Sagittarius ZWO ASI071MC Pro

f we look in the middle of the night during the summer months (on the northern hemisphere) into the Milky Way’s core, we can find many prominent deep space objects, like Lagoon, Omega, Eagle, or Trifid nebulae. However, there are also not so well known, but also very beautiful, objects. For instance emission nebula NGC 6559, which can be located in constellation Sagittarius. The star-forming region is surrounded by the dark nebula B 91 in the shape of a heart. At the bottom left corner, a part of the Lagoon Nebula is visible.

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	54x180s, Gain 94, bin 1x1,
Date	2020-09-21

NGC 6726 Nebula

September 13, 2020 JakubK

Reflection nebula Uncategorized

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Corona Australis DSO Globular cluster Kythira MaxField coma corrector Nebula Newton 150/600 NGC6723 Chandelier cluster NGC6726 Rainbow Astro RST135 ZWO ASI071MC Pro

NGC 6726 is a reflection nebula located in the constellation Corona Australis. Visually, there is a deep space neighbor, the Chandelier globular cluster NGC 6723. These deep space objects can be also found on my wide-angle picture of the Milky Way in the left bottom corner .

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	44x180s, Gain 94, bin 1x1,
Date	2020-09-13

M22 Great Sagittarius Cluster

September 12, 2020 JakubK

Globular cluster

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Astrophotography in Greece Cluster DSO Globular cluster Great Sagittarius cluster Greece Kithira Kythera Kythira M22 MaxField coma corrector Messier22 Newton 150/600 Rainbow Astro RST135 Sagittarius

Messier 22, sometimes called Great Sagittarius Cluster is a globular cluster, visually located very close to the galactic core of the Milky Way. If we look in this direction by a telescope, the surrounding of this cluster is filled with many stars. The cluster itself contains approximately 100 000 stars and it has roughly 97 light-years in diameter. The region of the sky where is this cluster located is poorly visible from my home, therefore every time I travel south with my portable telescope, I capture some deep space objects in this region. This picture was taken under the dark skies of Kythira.

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	59x180s, Gain 94, bin 1x1,
Date	2020-09-12

IC 1318 Sadr Region

September 11, 2020 JakubK

H II nebula

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Butterfly nebula Cygnus DSO IC1318 Kythira MaxField coma corrector Nebula Newton 150/600 Rainbow Astro RST135 Sadr Region ZWO ASI071MC Pro

Sadr Region, sometimes called The Gamma Cygni Nebula is a giant cloud of ionized hydrogen, located in the constellation Cygnus (Swan). The picture shows only a part of the whole complex. In order to capture the whole nebula, I would need a telescope with a much shorter focal length of the much bigger sensor of the camera. This is actually my second attempt. The first one from Milos Island was quite nice, but this time I dedicated a significantly longer time for this deep space object. Specifically, the picture is an integration of 405 minutes, which means nearly 7 hours in total.

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	135x180s, Gain 94, bin 1x1,
Date	2020-09-11

Chasing darkness on Fuerteventura

August 6, 2020 JakubK

Travel

6 Comments

Astrophotography fuerteventura Canary Islands Canon 50 mm f1.8 Canon EOS 6D Fuerteventura Milky Way Mobile astrophotography Newton 150/600 Rainbow Astro RST135 Travel

This year was a special year. The pandemic outbreak ruined my first attempt of chasing the darkness on the Canary Islands in May. I didn’t give up and as soon the restrictions were released, I purchased plane tickets to Fuerteventura again. We rented a house via AirBnB on the south side of the island, in the middle of nowhere, where the light pollution was minimal (measured SQM 21.2).

The island lies on the 28th parallel, which makes the core of the Milky Way pretty up in the sky. And this was exactly my primary astrophotographic target. I packed recently astro-modified Canon 6D, nifty-fifty 50 mm f1.8 lens and headed south. The aim was to capture the Antares region together with the core of the Milky Way and in the end, I somehow managed. However, the lens disappointed me a lot, because it suffers from comatic and chromatic aberrations, combined with astigmatism. The stars in the corners are not round, even if the lens is slowed down to f 3.5. I was trying nearly every evening to recapture the Milky Way, but I was fighting with the weather (it was very windy) and with the equipment (polar alignment, shutter release, drained batteries), but I somehow managed to generate at least one decent picture of the desired target. Lessons learned – I need a better 50 mm lens.

Technical details:

Lens	Canon EF 50 mm f1.8
F-stop	2.8
Focal length	50 mm
Mount	Baader NanoTracker
Camera	Canon EOS 6D Astro modified
Exposure	14x20s, ISO 1600
Date	2020-07-22

I also packed 150mm Newtonian, together with my new mount Rainbow Astro RS135. This mount is simply excellent and very portable. I still have Avalon M-Zero, but it is significantly heavier, therefore if I travel with Avalon, I have to order a second suitcase and to travel with two suitcases is not that convenient. Rainbow Astro occupies only half of my luggage, so there was a space for some T-shirts. I must say, that the Avalon is a better mount for tracking and there is no need to do a meridian flip, but the portability is for me more important. The primary target was the Lobster nebula, but I managed to capture some DSOs around Antares and in the core of the Milky Way (Lagoon, Trifid, M4, M6, M7, M24, IC4304).

The conclusion: the weather was much better than in La Palma last year. Every night was cloudless, but it was windy. Fortunately not every day, so in the end, it was a quite successful trip.

M4 Globular cluster

July 23, 2020 JakubK

Globular cluster Uncategorized

2 Comments

Antares Cluster DSO Fuerteventura Globular cluster M4 MaxField coma corrector Messier4 Newton 150/600 Rainbow Astro RST135 Scorpius ZWO ASI071MC Pro

Messier 4 (left side of the picture) is a globular cluster located in the constellation Scorpius, close to the brightest star of this constellation Antares (right side). This cluster is the closest one to the Solar System, due to its “short” distance of 7200 light-years and it contains several tens of thousands of stars. There is another globular cluster on the bottom side of the picture NGC 6144. The star Antares is classified as a red supergiant, with a diameter several times bigger than the Sun, which makes it one of the largest know stars. it is only 550 light-years away, which means M4 and Antares are close only visually, but in reality, there is a very long distance between them.
If any brighter star is photographed by the Newtonian telescope, the diffraction cross appears due to the so-called “spider vanes” holder of the secondary mirror. If the spider vanes are not perpendicular to each other (like in my case), the diffraction pattern makes multiple ugly lines. This means I will have to correct it, as soon as I get back from Fuerteventura.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	44x180s, Gain 94, bin 1x1,
Date	2020-07-23

NGC6357 Lobster Nebula

July 22, 2020 JakubK

H II nebula

1 Comment

Canary Islands DSO Emission nebula Fuerteventura HII region Lobster nebula Nebula Newton 150/600 NGC6357 Rainbow Astro RST135 Scorpius TS MaxField coma corrector ZWO ASI071MC Pro

Lobster Nebula is a HII region (giant cloud of excited hydrogen gas) located in the constellation Scorpius. The nebula rises only 8° above the horizon in Central Europe, which means, it is submerged in light pollution caused by nearby towns, villages, or cities. The situation is completely different on the Canary Islands, where the nebula rises 27° above the horizon. Therefore, this nebula was the primary target of my expedition to Fuerteventura. Unfortunately, the weather didn’t cooperate and strong winds caused bad seeing and didn’t allow me to capture more frames. So, next time it will be better.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	40x180s, Gain 94, bin 1x1,
Date	2020-07-22

M24 Sagittarius Star Cloud

July 21, 2020 JakubK

Open cluster

1 Comment

Cluster DSO Fuerteventura M24 MaxField coma corrector Messier24 Milky Way Rainbow Astro RST135 Sagittarius Sagittarius Star Cloud Star cloud ZWO ASI071MC Pro

Messier 24 is a spiral arm of our galaxy located in the constellation Sagittarius. The region is heavily populated by the stars, which makes you think how big our home galaxy Milky Way is. I captured it already a few years back, but it would be a pity not to recapture this magnificent star cloud again with a slightly shorter focal length and under the dark skies of Fuerteventura.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	75x120s, Gain 94, bin 1x1,
Date	2020-07-21

IC 4304 Rho Ophiuchi Nebula

July 21, 2020 JakubK

Dark Nebula Reflection nebula

1 Comment

Dark nebula DSO Fuerteventura IC4604 MaxField coma corrector Nebula Newton 150/600 Ophiuchus Rainbow Astro RST135 Reflection nebula Rho Ophiuchi ZWO ASI071MC Pro

Rho Ophiuchi is a triple star system (on the left side of the picture) in the constellation Ophiuchus. The light from the stars is partially absorbed by the gas, which makes the blue reflection nebula visible. A smaller reflection nebula called IC 4603 is located on the right. The picture shows just a small frame of the significantly bigger nebula, called the Rho Ophiuchi complex, which combines star Antares, globular cluster M4, and many more reflection, emission, and dark nebulae. In order to capture the whole complex, one has to use a significantly shorter focal length, like 130 – 200 mm.

The picture was taken under the dark skies of Fuerteventura and it’s a stack of 73 pictures, 3 minutes each, which makes the total integration time 219 minutes.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	73x180s, Gain 94, bin 1x1,
Date	2020-07-21

M7 Ptolemy cluster

July 21, 2020 JakubK

Open cluster

1 Comment

Cluster DSO Fuerteventura M7 MaxField coma corrector Messier7 Newton 150/600 Open cluster Ptolemy cluster Rainbow Astro RST135 Scorpius ZWO ASI071MC Pro

Messier 7, sometimes called the Ptolemy Cluster, is an open cluster located in between constellations Sagittarius and Scorpius. The cluster is visually located on the galactic plane of the Milky Way, therefore there are many stars in the background. The cluster is badly visible from Central Europe. Much better opportunities to observe or photograph this cluster have astronomers or astrophotographers in southern countries. My last attempt to capture it in Greece was constantly disturbed by the weather, therefore when I was again in the South, specifically at Fuerteventura, I didn’t hesitate and recapture this beautiful cluster.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	64x180s, Gain 94, bin 1x1,
Date	2020-07-21

M8 Lagoon Nebula, M20 Trifid Nebula

July 18, 2020 JakubK

Dark Nebula H II nebula Open cluster Reflection nebula

4 Comments

Fuerteventura Lagoon nebula M20 M8 MaxField coma corrector Messier20 Messier8 Newton 150/600 Rainbow Astro RST135 Sagittarius Trifid nebula ZWO ASI071MC Pro

These two magnificent nebulae are located visually close to each other in the constellation Sagittarius. This means we are looking in the direction of the galactic core of the Milky Way. Trifid Nebula (up left) is a combination of a reflection nebula (blue part), a dark nebula (brown clouds), an emission nebula (red region), and a star cluster. On the other hand, the Lagoon nebula (right side) is an emission nebula – a giant cloud of ionized HII gas. Due to the very low southern declination, it’s challenging to photograph these deep space objects from my home place in Central Europe. Therefore every time I travel south, I take the opportunity and recapture these nebulae. My first attempt of M20 was made with a focal length of 917 mm, the second one with 630 mm and now I used a gentle focal reducer. A focal length of 570 mm allowed me to fit both nebulae into the field of view of the APS-C sensor size. The picture is an integration of 213 minutes, taken under the dark skies of Fuerteventura.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Rainbow Astro RST 135
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-0°C
Corrector	TS MaxField
Filters	No
Exposure	71x180s, Gain 94, bin 1x1,
Date	2020-07-18

AstroFotoBlog

Tag: Rainbow Astro RST135

NGC 3372 Eta Carina Nebula

NGC2264 Cone nebula

IC2177 Seagull Nebula

NGC1499 California Nebula

NGC 2237 Rosette Nebula

Sun

Technical details:

NGC 253 Sculptor Galaxy

NGC 6559 Nebula

NGC 6726 Nebula

M22 Great Sagittarius Cluster

IC 1318 Sadr Region

Chasing darkness on Fuerteventura

Technical details:

M4 Globular cluster

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NGC6357 Lobster Nebula

M24 Sagittarius Star Cloud

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IC 4304 Rho Ophiuchi Nebula

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M7 Ptolemy cluster

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M8 Lagoon Nebula, M20 Trifid Nebula

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