Tag: Cluster

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.


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.


M92 Globular Cluster in Hercules

Constellation Hercules contains two globular clusters. First one is spectacular Great Globular Cluster M13 and its smaller brother M92. However, the smaller one is one of the brightest and the oldest globular cluster in our galaxy. It’s 26 700 light-years away from the Solar System and it contain 250 000 stars.