Globular cluster – AstroFotoBlog

NGC 5139 Omega Centauri

May 30, 2022 JakubK

Globular cluster

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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

NGC 6752 Globular Cluster

May 29, 2022 JakubK

Galaxy Globular cluster

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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

Rho Ophiuchi cloud complex

May 29, 2022 JakubK

Dark Nebula Globular cluster H II nebula Reflection nebula

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Canon EOS 6D iOptron Skyguider Pro Kiripotib Namibia Rho Ophiuchi Rho Ophiuchi cloud complex William Optics RedCat 51

The Rho Ophiuchi cloud complex is a dense region of gas and dust located in the constellation Ophiuchus, near the border with Scorpius. It is one of the closest star-forming regions to Earth and contains a number of young, hot stars as well as protostars still in the process of forming. The cloud complex is known for its striking red and blue colors, caused by the presence of ionized gas and reflection of starlight off dust grains. Basically, nearly all the colors of the universe can be seen here.

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	Canon EOS 6Da
Filters	none
Exposure	60x120s, ISO 1600
Date	2022-05-29

M8 Lagoon nebula M20 Trifid nebula

July 4, 2021 JakubK

Globular cluster H II nebula Milky Way

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Askar FMA180 f4.5 Canon EOS 6D Crete Great Sagittarius cluster iOptron Skyguider Pro Lagoon nebula M22 M28 Milky Way Sagittarius Trifid nebula

Constellation Sagittarius is full of deep space objects. I think we all agree that the most beautiful one is the Lagoon nebula, accompanied by the Trifid nebula. I captured these nebulae already, but with a much longer focal length. This time I used a significantly shorter telescope – only 180 mm to reveal the other deep space objects. The bright star at the bottom left is the star Kaus Bolearis, where the archer has his head. This star is surrounded by the globular clusters: M22 Great Sagittarius cluster on the left and M28 on the top.

Technical details:

Lens	Askar FMA180 F4.5
Camera	Canon EOS 6Da
Mount	iOptron Skyguider Pro
Exposure	50x60s, ISO 1600
Date	2021-07-03

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

M4 Globular cluster

July 23, 2020 JakubK

Globular cluster Uncategorized

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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

M5 Globular Cluster

May 21, 2020 JakubK

Globular cluster

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Cluster DSO Explore scientific coma corrector Gemini gf53 Globular cluster M5 Messier5 Newton 254/1000 OAG Serpens ZWO ASI071MC Pro

Messier 5 is a globular cluster located in the constellation Serpens. I revisited this cluster after four years. Such a spectacular deep space object simply deserves more attention, than I was able to spend four years ago. At that time I used the same telescope but now I have a different coma corrector and camera. Moreover, this time I dedicated significantly longer integration time, specifically I was collecting the photons 2.7 hours, which were traveling to us 24 500 years.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	1060 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-10°C
Corrector	Explore Scientific HR coma corrector
Filters	No
Exposure	54x180s, Gain 95, bin 1x1,
Date	2020-05-21

M72 Globular Cluster in Aquarius

August 9, 2019 JakubK

Globular cluster

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Aquarius Astronomik L-1 UV IR Block Filter Cluster DSO Explore scientific coma corrector Gemini gf53 Globular cluster M72 Messier72 Newton 254/1000 ZWO ASI071MC Pro

Messier 72 is a globular cluster, which can be located in constellation Aquarius. The cluster is approximately 55 light-years from us, which makes it one of the distant objects from Messier catalogue. M72 is very special deep space object for me, because it’s the last object of Messier catalogue captured by me. Now I am thinking, shall I continue and try to capture NGC catalogue? Or shall I move to southern hemisphere? I am definitely sure that some of the Messier’s objects need to be recaptured.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	1060 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-10°C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	60x180s, Gain 94, bin 1x1,
Date	2019-08-09

M13 Great Globular Cluster in Hercules

June 7, 2019 JakubK

Globular cluster

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Astronomik L-1 UV IR Block Filter Cluster Explore scientific coma corrector Gemini gf53 Globular cluster Great Globular Cluster in Hercules Hercules M13 Messier13 Newton 254/1000 NGC6209 ZWO ASI071MC Pro

In my opinion, Messier 13 is the most beautiful globular cluster in our galaxy. Last time when I photographed this cluster, I used focal reducer (don’t ask me why), therefore I decided to recapture it with focal length 1060 mm. Small galaxy in upper right corner is called NGC 6209.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	1060 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-10°C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	55x180s, Gain 94, bin 1x1,
Date	2019-06-07

M10 Globular Cluster

June 2, 2019 JakubK

Globular cluster

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Astronomik L-1 UV IR Block Filter Cluster DSO Explore scientific coma corrector Gemini gf53 Globular cluster M10 Messier10 Newton 254/1000 Ophiuchus ZWO ASI071MC Pro

Messier 10 is a globular cluster located in constellation Ophiuchus. This cluster belongs to one of the closest to the Earth – the distance is “only” 14 300 light-years. It has visually many globular neighbors: M12 northwest, M14 east and M107 southwest.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	1060 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-10°C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	38x180s, Gain 94, bin 1x1,
Date	2019-06-02

M12 Globular Cluster

June 1, 2019 JakubK

Globular cluster

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Astronomik L-1 UV IR Block Filter Cluster DSO Explore scientific coma corrector Gemini gf53 Globular cluster M12 Messier12 Newton 254/1000 Ophiuchus ZWO ASI071MC Pro

Messier 12 is a globular cluster located in constellation Ophiuchus. The cluster is 15,700 light-years away from Earth and contains approximately 200,000 stars. There are another two globular clusters in the vicinity: M10 south-east and M14 east.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	1060 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-10°C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	32x180s, Gain 94, bin 1x1,
Date	2019-06-01

M53 Globular Cluster

May 13, 2019 JakubK

Globular cluster

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Astronomik L-1 UV IR Block Filter Cluster Coma Berenices DSO Explore scientific coma corrector Gemini gf53 Globular cluster M53 Messier53 Newton 254/1000 ZWO ASI071MC Pro

Messier 53 is a globular cluster located in constellation Coma Berenices. This cluster is quite far from galactic center of the Milky Way (60 000 light-year), which makes it to be located on the outer edge of our galaxy. However, it heading towards the center with speed approximately 63 km/s. The cluster contains 500 000 stars, but this cannot be verified by the photo I took, because it is 58 000 light-year from Earth and my telescope has very small aperture to resolve this kind of details.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	1060 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-10°C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	45x300s, Gain 94, bin 1x1,
Date	2019-05-13

M68 Globular Cluster

April 30, 2019 JakubK

Globular cluster

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Astronomik L-1 UV IR Block Filter Avalon M-Zero Chasing darkness Cluster DSO Explore scientific coma corrector Globular cluster Hydra La Palma M68 Messier68 Newton 150/600 ZWO ASI071MC Pro

Messier 68 is a globular cluster located in constellation Hydra. The cluster contains more than 100,000 stars and it is approximately 33,000 light-years away from Earth. The best time for observation is between March and July. Observers from Central Europe have disadvantage, because M68 doesn’t raise much above the horizon. Therefore this cluster was one of my primary targets on La Palma, where M68 is much better visible. However, the weather was bad and I only got 40 minutes between the clouds.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	630 mm
Mount	Avalon M-Zero
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-10°C
Corrector	Explore Scientific HR
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	19x120s, Gain 94, bin 1x1,
Date	2019-04-30

M79 Globular cluster

January 15, 2019 JakubK

Globular cluster

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Avalon M-Zero Cluster DSO Explore scientific coma corrector Globular cluster Hutech IDAS LPS-D2 M79 Messier79 ZWO ASI071MC Pro

Messier 79 is a globular cluster located in constellation Lepus. This cluster is particularly interesting, because it can be observed/photographed only in winter and there is no other globular cluster in that part of the sky. Most of the globular clusters are visible in summer, when the galactic center is shows its beauty. This means that most of the globular clusters are close to the galactic center, but M79 is actually at the edge of our galaxy. Diameter of our own Milky Way galaxy is approximately 100,000 light-years. M79 is roughly 60,000 light-years far from galactic center and 42,100 light years away from earth. The study conducted in 2003 revealed the concentration of the stars in constellation Canis Major, which is neighboring constellation to Lepus and it was assumed that there is a dwarf galaxy there. Latest studies disproved this theory and the star concentration is assumed to be caused just by the spiral arm of the Milky Way.

This deep space object is extremely difficult to capture due to its very low declination if observed from Central Europe. Moreover, also the optics was not cooperating this night. I must admit it’s the worst picture of a globular cluster I have ever made. But if I want to complete Messier catalogue this year, I have to publish it as it is. I hope I will get an opportunity to recapture M79 next year.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	570 mm
Mount	Avalon M-Zero
Autoguiding	ZWO 174MM, Guidescope 30 mm
Camera	ZWO 071 Pro @-15°C
Corrector	TS MaxField
Filters	Hutech IDAS LPS-D2
Exposure	22x60s, Gain 134, bin 1x1,
Date	2019-01-15

M2 Globular Cluster

October 4, 2018 JakubK

Globular cluster

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Cluster DSO Gemini gf53 Globular cluster Hutech IDAS LPS-D2 M2 MaxField coma corrector Messier2 Newton 254/1000 ZWO ASI071MC Pro

Messier 2 is a globular cluster located in constellation Aquarius and it’s approximately 37’000 light-year away from Earth. It’s one of the biggest known globular cluster, because it contains approximately 150 000 stars and it has 175 light-years in diameter. After Crab Nebula M1, this cluster is the second object of Messier’s catalogue of deep space objects.

This picture was the second captured object (after M71) during one night and it’s an integration of 3 hours of exposure.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	950 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-15C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	60x180s, Gain 94, bin 1x1,
Date	2018-10-04

M71 Globular cluster

October 4, 2018 JakubK

Globular cluster

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Cluster DSO Gemini gf53 Globular cluster Hutech IDAS LPS-D2 M71 MaxField coma corrector Messier71 Newton 254/1000 ZWO ASI071MC Pro

Messier 71 is a globular cluster located in constellation Sagitta. The cluster is located approximately 12 – 13 thousand light-years from earth. The classification of M71 as a globular cluster was questionable for a long time, because it lacks central star concentration and therefore it was considered as an open cluster. The diameter of this cluster is only 27 light-years, which is very low value for globular cluster.

Well I am back in light pollute sub-urban area. I can use bigger and heavier telescope, but I am missing dark skies of Milos. The picture is an integration of 38 pictures, with exposure time 3 minutes. Total exposure time was approximately 2 hours.

I managed to test new TS-Optics 2″ 3-element MaxField Newtonian Coma Corrector, which should be 2” version of Wynne corrector. It should have significant advantage compared all 2” coma correctors on the market: it reduces focal length by 5%, should correct full frame CCD (we will see about that) and it should have very low vignetting. I will have to extend my World Wide Coma Correction exercise.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	950 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-15C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	38x180s, Gain 94, bin 1x1,
Date	2018-10-04

M70 Globular cluster

September 15, 2018 JakubK

Globular cluster

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Cluster DSO Explore scientific coma corrector Globular cluster iOptron CEM25P M70 Messier70 Milky Way Milos Newton 150/600 Sagittarius ZWO ASI071MC Pro

Messier70 is a globular cluster located in constellation Sagittarius. The cluster is at a distance approximately 29’300 light-years from the Solar System. Neighbor cluster M69 was captured during the same night.

M70 is the 15^th globular cluster captured by me on Milos Island – mission accomplished.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	37x60s, Gain 134, bin 1x1,
Date	2018-09-15

M69 Globular Cluster

September 15, 2018 JakubK

Globular cluster

2 Comments

Cluster DSO Explore scientific coma corrector Globular cluster iOptron CEM25P M69 Messier69 Milky Way Milos Newton 150/600 Sagittarius ZWO ASI071MC Pro

Messier69 is a globular cluster located in constellation Sagittarius. It is approximately 29’700 light-years away from Earth. Together with Messier70 are close to galactic center of Milky Way (distance between them is 1’800 light-years) and there were two last deep space objects captured on Milos Island. These two were the last missing Messier objects, which I wanted to capture and I was very happy that I managed.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	37x60s, Gain 134, bin 1x1,
Date	2018-09-15

M28 Globular Cluster

September 10, 2018 JakubK

Globular cluster

1 Comment

Cluster DSO Explore scientific coma corrector Globular cluster iOptron CEM25P M28 Messier28 Milos Newton 150/600 Sagittarius ZWO ASI071MC Pro

Messier 28 is a globular cluster located in constellation Sagittarius. Center of Milky Way takes care about the background, which is filled by many stars. The cluster is 17900 light-year away from the Solar system and it has diameter approximately 60 light-years.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	25x120s, Gain 134, bin 1x1,
Date	2018-09-10

M62 Globular Cluster

September 10, 2018 JakubK

Globular cluster

1 Comment

Cluster DSO Explore scientific coma corrector Globular cluster iOptron CEM25P M62 Messier62 Milos Newton 150/600 Ophiuchus ZWO ASI071MC Pro

Messier 62 is a globular cluster located in constellation Ophiuchus and it’s 22’500 light-years from Earth. Globular clusters are the most common deep space objects captured by me on Milos Island.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	23x120s, Gain 134, bin 1x1,
Date	2018-09-10

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