M13 Globular Cluster

M13 Globular Cluster

 

Distance from land: 25100 a.l.

 

The Globular Cluster of Hercules (also known as M 13 from its position in the Messier Catalog, or as NGC 6205) is a globular cluster visible in the constellation of Hercules.

 

It is the brightest globular cluster in the northern hemisphere and is also visible to the naked eye.

M13 has an apparent magnitude of 5.8. Its angular diameter is 23 ', while its real diameter is approximately 165 light years.

 

M13 contains several hundred thousand stars, the brightest of which is 11.95 magnitude. Around its core, the stars are about 500 times more concentrated than around the solar system. The age of M 13 has been estimated to be between 12 and 14 billion years. Its distance from Earth is 23,157 light years. Appearing so bright at such a great distance, its real brightness is very high, over 300,000 times that of the Sun.

 

The radial speed is approximately 250 km / s on approach. This motion results from the combination of three different speeds: the rotation of the Galaxy, the motion of the Sun in space, and the revolution motion of the cluster around the galactic center.

 

12 "Truss RC telescope reduced to 1790

Celestron 80/600 guide tube with Asi Zwo 224

Moravian G2 8300 camera with internal wheel

Ioptron Cem120 mount

Moonlite focuser and 3.5 "electronic rotator

Electronic temperature control and anti-condensation bands

Cls ccd, R, G, B, Ha 6nm filters, all Astronomik

Shooting data:

41 x 180s ccd cls

71 x 30s ccd cls

21 x 180s R

21 x 180s G

21 x 180s B

 

Processing: Pixinsight, Photoshop, star spikes, astronomy tools

Done