Tag: Cluster

M17 Omega Nebula M18 Open Cluster

Due to moderate focal length of my telescope (660 mm) I managed to capture two Messier’s object in one shot. Specifically it was Omega nebula M17 (on the right) and open cluster M18 (on the left). I already captured Omega nebula some time ago, but due to its very low declination, the picture was not that nice. I was really happy that I got the opportunity on island Milos to capture it again. The cluster M18 is approximately 4200 light-years away from Earth and it has diameter 17 light-years.

Technical details:

TelescopeNewton 150/600 mm
Aperture150 mm
Focal length660 mm
MountiOptron CEM25P
AutoguidingQHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
CameraZWO 071 Pro @-10C
CorrectorExplore Scientific HR coma corrector
FiltersAstronomik L-1 - UV IR Block Filter
Exposure37x180s, Gain 134, bin 1x1,
Date2018-09-06

M80 Globular Cluster

Messier80 is a globular cluster located in the constellation Scorpius. M80 is approximately 28’400 light-years far from Earth and it has several hundred thousand stars. M80 belongs to one the densest globular cluster and it’s characterized by frequent star collisions in the center.

Technical details:

TelescopeNewton 150/600 mm
Aperture150 mm
Focal length660 mm
MountiOptron CEM25P
AutoguidingQHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
CameraZWO 071 Pro @-10C
CorrectorExplore Scientific HR coma corrector
FiltersAstronomik L-1 - UV IR Block Filter
Exposure20x120s, Gain 134, bin 1x1,
Date2018-09-06

 


M4 Globular cluster

Messier M4 is a globular cluster located in constellation Scorpius. It has approximately 100 000 stars and it’s roughly 7200 light-years away from us, which makes it one of the closest globular clusters to the Solar system. Hubble Space Telescope discovered many white dwarf stars, which are the oldest known stars in our galaxy, having an age of 13 billion years.

The picture was taken during my travels to Greek island Milos and it’s only integration of 24 of two minutes exposures. This means only 48 minutes in total.

Technical details:

Telescope:Newton 150/600 mm
Aperture:150 mm
Focal length:660 mm
MountiOptron CEM25P
AutoguidingQHYCCD 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:8x24x120s, Gain 134, bin 1x1,
Date:2018-09-05

M24 Sagittarius Star Cloud

Messier 24, also called Small Sagittarius Star Cluster, is a giant cloud of stars and open star clusters. In fact, M24 is not gravitational bonded object, but it is only spiral arm of Milky Way galaxy. The light coming from the cloud is partially blocked by two prominent dark nebulae. The cloud is literally surrounded by Messier objects. In north-east direction can be located Omega Nebula M17 and  open cluster M18, just 3° direction north open cluster M25 can be seen, 5° direction west open cluster M23, 6° south-west nebulae M20 Trifid and M8 Lagoon nebula.

Technical details:

TelescopeNewton 150/600 mm
Aperture150 mm
Focal length660 mm
MountiOptron CEM25P
AutoguidingQHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
CameraZWO 071 Pro @-10C
CorrectorExplore Scientific HR coma corrector
FiltersAstronomik L-1 - UV IR Block Filter
Exposure27x180s, Gain 134, bin 1x1,
Date2018-09-05

M7 Ptolemy Cluster

Similar to M6, there is another bright open cluster in constellation Scorpius called Ptolemy Cluster or Messier 7. The cluster was discovered very long time ago (130 BC) by Greek astronomer Klaudios Ptolemaios. It belongs to one of the brightest and the biggest star clusters, which are visible by naked eye, but not from Central and Northern Europe.  The open cluster M7 consists of several hundreds of blue stars and it’s approximately 1000 light-year away from Solar System. The background illuminates our home galaxy Milky Way.

To capture this cluster was quite tricky. First two attempts were interrupted by windy and cloudy weather. During the third one I managed to expose 17x 120s and 8x 180s, i.e. 58 minutest in total.

Technical details:

Telescope:Newton 150/600 mm
Aperture:150 mm
Focal length:660 mm
MountiOptron CEM25P
AutoguidingQHYCCD 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
Exposure17x120s, 8x180s, Gain 134, bin 1x1,
Date:2018-09-04

M22 Great Sagittarius Cluster

This spectacular globular cluster is called Messier 22 or Great Sagittarius Cluster. It’s located, surprisingly, in constellation Sagittarius, close to Galactic Bulge, therefore the background is illuminated by many stars. Oh, and it’s so many of them. If you realize that each bright dot is a star and most probably not just a star, but whole solar system, it makes you think how big the universe is. The distance from Earth only 10’000 light-years, makes this cluster the closest one to us.

Due to its low declination, it’s quite difficult to photograph this cluster from Central Europe. Therefore I took the opportunity and captured M22 on Milos Island. The picture is an integration of only 94 minutes.

Technical details:

TelescopeNewton 150/600 mm
Aperture150 mm
Focal length660 mm
MountiOptron CEM25P
AutoguidingQHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
CameraZWO 071 Pro @-10C
CorrectorExplore Scientific HR coma corrector
FiltersAstronomik L-1 - UV IR Block Filter
Exposure47x120s, Gain 134, bin 1x1,
Date2018-09-04

M30 Globular Cluster

Messier 30 is a globular cluster located in constellation Capricornus. Compared to recently captured globular clusters there are not so many stars in the background. M30 is about 27’100 light-years far from Earth, has 93 light-year in diameter and it contains approximately 150’000 stars.

Technical details:

TelescopeNewton 150/600 mm
Aperture150 mm
Focal length660 mm
MountiOptron CEM25P
AutoguidingQHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
CameraZWO 071 Pro @-10C
CorrectorExplore Scientific HR coma corrector
FiltersAstronomik L-1 - UV IR Block Filter
Exposure60x180s, Gain 134, bin 1x1,
Date2018-09-03

 


M6 Butterfly cluster

M6 is an open cluster located in constellation Scorpius. Visually it’s located not far from horizon, at least from Central Europe; therefore it’s hard to capture this deep space object. The observing/capturing conditions change significantly if you travel to Southern Europe. From there the cluster is visible by naked eye. The stars from similar shape to butterfly, therefore  it got its name. On the bottom side of the cluster is nicely visible red giant (orange star) called BM Scorpii. The background illuminates the Milky Way.

The picture was taken during chasing darkness on Greek island Milos and in total was taken 30 pictures having exposure 180 seconds, i.e. total 90 minutes of integration.

Technical details:

Telescope:Newton 150/600 mm
Aperture:150 mm
Focal length:660 mm
MountiOptron CEM25P
AutoguidingQHYCCD 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
Exposure30x180s, Gain 134, bin 1x1,
Date:2018-09-03

 


M9 Globular Cluster

Messier 9 is a globular cluster located in constellation Ophiuchus. Particularly interesting is, that it’s surrounded by a dark cloud, which is called Barnard 64. Also interesting is the fact that this cluster is one of the nearest globular clusters to the center of our galaxy.

The picture was taken on island Milos by integration of 24 picture each 120s, which means only 48 minutes in total.

Technical details:

TelescopeNewton 150/600 mm
Aperture150 mm
Focal length660 mm
MountiOptron CEM25P
AutoguidingQHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
CameraZWO 071 Pro @-10C
CorrectorExplore Scientific HR coma corrector
FiltersAstronomik L-1 - UV IR Block Filter
Exposure24x120s, Gain 134, bin 1x1,
Date2018-09-03

M75 Globular Cluster

Messier75 is a globular cluster located in the constellation Sagittarius.  It is approximately 67’500 light-years away and is has diameter 134 light-years.

Technical details:

TelescopeNewton 150/600 mm
Aperture150 mm
Focal length660 mm
MountiOptron CEM25P
AutoguidingQHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
CameraZWO 071 Pro @-10C
CorrectorExplore Scientific HR coma corrector
FiltersAstronomik L-1 - UV IR Block Filter
Exposure19x180s, Gain 134, bin 1x1,
Date2018-09-03

M3 Globular cluster

Finally there was a nice weather and no Moon. Summer nights are short; therefore it’s not optimal for deep space objects, which require very long integration time. Therefore I pointed my telescope this evening to globular cluster M3.

This cluster is located in constellation Canes Venatici and it’s one of the largest known clusters, because it contains around 500 000 stars.

Technical details:

Telescope:Newton 254/1000 mm
Aperture:254 mm
Focal length:1000 mm
MountGemini G53f
AutoguidingZWO 174MM, TS 60/240 mm
Camera:Mii G2 8300
Corrector:Explore scientific CC
Filters:Baader LRGB
Exposure:16xL 180s bin 1x1, 8xRGB 120s bin 2x2
Date:2018-06-10

M14 Globular Cluster

Messier 14 is a globular cluster located in constellation Ophiuchus. The cluster has diameter 100 light-years, contains several hundred thousand stars and it is approximately 30 thousand light-years far from us.

The picture is a stack of 20 luminance frames, each 3 minutes long and 6 RGB frames per channel.

Technical details:

Telescope:Newton 254/1000 mm
Aperture:254 mm
Focal length:1000 mm
MountGemini GF53f
AutoguidingZWO 174MM, TS 60/240 mm
Camera:Moravian instruments G2 8300M @-30C
Corrector:Explore Scientific HR coma corrector
Filters:Baader LRGB
Exposure:20xL 180 s bin 1x1, 6RGB, 120s, bin 2x2
Date:2018-0610

M67 Open cluster

Messier 67 is an open cluster located in constellation Cancer and it’s one of the oldest open cluster from Messier catalogue. Therefore it was examined by many scientific studies. The diameter of the cluster is approximately 20 light-years and it’s roughly 2700 light-years away from Earth.

Technical details:

TelescopeNewton 254/1000 mm
Aperture254 mm
Focal length1000 mm
MountGemini G53f
AutoguidingZWO 174MM, TS 60/240 mm
CameraZWO 071 Pro @-15°C
CorrectorGPU
FiltersIR UV cut
Exposure25x180s, Gain 94, bin 1x1,
Date2018-03-21

 


M50 Open cluster

M50 is an open cluster located in constellation Monoceros, visually not far from the brightest star Sirius. It was catalogued by Charles Messier in 1772 and it’s approximately 3000 light-years away from Earth. The latest research was conducted in 2012 and confirmed that the cluster contains 508 stars – you can try to count them.

Technical details

Telescope:Newton 254/1000 mm
Aperture:254 mm
Focal length:1000 mm
MountGemini G53f
AutoguidingZWO 174MM, TS 60/240 mm
Camera:ZWO ASI071MC Pro
Corrector:GPU
Filters:UV IR cut
Exposure:25xRGB
Date:2018-03-21

M55 Globular cluster

Messier55 is a globular cluster located in constellation Sagittarius. This cluster is very difficult to photograph from central Europe, because there is located not far from horizon. For example Charles Messier hat troubles to locate this cluster and it took him 14 years to spot it. I made a trip to Gavdos – the southernmost place is Europe. There the cluster was significantly upper in the sky.

M55 is 17600 light-year far from the Solar system, it has approximately 100 light-year diameter and contain 100 000 stars.

Techanical details

Telescope:RC 154/1370
Aperture:154 mm
Focal length:917 mm
MountiOptron CEM25P
AutoguidingQHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera:ZWO 1600 MC @ -15C
Corrector:Astro Physics CCDT67
Filters:UV, IR cut
Exposure:37x 120s Gain 240
Date:2017-09-29

M26 Open cluster

Recently I purchased new travel telescope, the mount and the camera and I decided to make small comparison with my primary equipment. New equipment consist of iOptron CEM25P mount, which is very portable equatorial mount and small (6”) Ritchey–Chrétien telescope. Even the camera is new. ZWO 1600 MC has only 400 grams compared to the old Mii G2, which has 2.5 kg. The reason is that ZWO is color version without filter wheel, therefore narrow band imaging is not possible, but I will use this camera mainly under the darks skies. Detailed review of the portable setup will follow.

Back to the picture, I pointed the telescopes into the constellation Scutum and captured open cluster M26. This cluster is approximately 180 million years old and the light travelled 5400 years from there into my telescopes. The cluster is located in the plane of our home galaxy Milky Way; therefore there are so many stars in the background.

The upper picture was made by my primary setup – Gemini G35f, astrograph Newtonian 254/1000 with GPU coma corrector and MII G2 8300 camera. The lower picture is the outcome of the new setup: iOptron CEM25P, 154/1370 mm RC telescope with focal reducer Astro Physics CCDT67 and ZWO 1600 MC camera.

Technical details

Telescope:Newton 254/1000 mm
RC 154/1370
Aperture:254 mm
154 mm
Focal length:1000 mm
917 mm
MountGemini G53f
iOptron CEM25P
AutoguidingTS 60 mm, FL240 mm, ZWO 174 MM
Camera:Moravian instruments G2 8300M @-30C
ZWO 1600 MC @ -15C
Corrector:GPU
Astro Physics CCDT67
Filters:Baader RGB
Exposure:10xL 180s bin 1x1, 8xRGB 120s bin2x2
28x 120s Gain 300
Date:2017-08-30

NGC6604 Open cluster

NGC6604 is an open cluster associated with nebulosity. It is located not far from my favorite Eagle nebula in constellation Serpens and it’s 5500 light-years far from the Earth. Since this deep space object is not that high on the skies, I rather used narrow band filters, because this part of the skies is strongly influenced by the light pollution, which is coming from the nearest town. First picture is processed in “fake” Hubble color palette, the second one should more or less look like in “true” color.


M48 Open Cluster

M48 is an open cluster discovered by Charles Messier in 1771. The cluster is located in constellation Hydra and it’s 1500 light-years far from the Earth. This cluster can be observed even by small binocular, but small telescope reveals more than 50 stars. During waiting for Sombrero galaxy I pointed my telescope just below bright star Procyon and collected some light coming from this cluster.


M44 Beehive Cluster

Beehive cluster is an open cluster located in constellation Cancer. Because of its relatively “short” distance to the Solar system (600 Light years), it didn’t fit fully into the field of view of my telescope. The cluster has approximately 1000 stars and even two planets were discovered there.


M5 Globular Cluster

M5 is a globular cluster discovered by Gottfried Kirch and Maria Margarethe Kirch in 1702. It’s located in constellation Serpens and it’s 24500 light-years far from the Solar System. This globular cluster has diameter 165 light-years and contains more than 100 000 stars, which makes it one of the biggest globular cluster in our Milky Way galaxy.