Objekt / Object: |
Shakhbazian Compact groups of compact galaxies Shk 1; Con: UMa; Mag.(V): 16.0 - 19,3; Groesse/Diamter: 1 arcmin |
Datum / Date: | 2011-02-10 | Zeit / Time: | 24 x 300s - 20:58:05h UT | Aufnahmeort / Location: | Irmtraut/Westerwald - Germany | Objektentfernung / Objectdistance: | ca.1,5 Milliarden Lichtjahre / ca. 1.5 billion lightyears | Instrument: | ST-10 XME - 12"Newton, f/4,8 | Montierung / Mount: | Alt 6 AD | Kamera: | SBIG ST-10XME | Nachführung / Guiding: | SBIG selfguiding | Aufnahmeort / Location: | Irmtraut/Westerwald - Germany | Bemerkungen / Note: | In 1957 the Armenian astronomer Shakhbazian discovered a small compact group of compact galaxies clustered tightly in constellation Ursa Major. 16 Years later Lloyd Robinson and Joe Wampler examined the cluster. All cluster members lie at the same distance. In 1973 Halton Arp studied the cluster. Arp could not find young stars. He concluded: "nothing more than a giant size globular cluster"! With 5-meter Palomar telescope Robert Kirsher and Eliot Malumuth found that the compactness of cluster is very high. Result of galactic cannibalism events.This object is definitely a challenge object to observe. The individual galaxies are under an arc second in diameter and appearing "star-like". The visual magnitudes of cluster members are very faint. |