Willkommen bei Paraselene.de


ZUSATZMENÜ


MemoPad
0 Pages
Graphic: Symbol MemoPad.


Inhalt

M 81 on March 21st, 2009

M 81  in Ursa Major on March 21st, 2009. This spiral galaxy is 12 million lightyears from Earth and is thought to harbour a massive black hole in its centre. The elongated stellar object on the upper right is an incompletely resoved foreground star. ATIK 314 L CCD camera at the prime focus of a TeleVue Genesis refractor (100/540). Tracking control with ST-4 Autoguider. Composite of two frames. The exposure times were 300 and 600 seconds. Unfortunately clouds came up that day very quickly so that only two frames could be taken. Processed with Registax 4,0, Photomatix 3.0 and Photoshop 6.0.

© Markus Weber and Eva Seidenfaden 2009.


Grafik: URL dieser Seite.
Permanent link:






nach oben


Menü