Open Cluster   NGC 4755    Crux / Kreuz des Südens
This photo shows one of the most beautiful open star clusters of the southern sky  - NGC 4755.
It is an extremely brilliant and famous object when viewed through a binocular or a telescope. The orange star is DU Crucis and a red supergiant, strongly contrasting with the other bright members which are blue supergiants.  The counterpart in the northern sky ist the brilliant open star cluster  NGC 457.

Mount
German Equatorial Mount RA / DE
12 53 37  /  -60 21 23
Telescope 20" Cassegrain f/3 (1500 mm) Size
10' 
Camera Moravian G2 8300 mono
Object Class I 3 r
Filter Astrodon LRGB 1,25'' Stars > 100
Exposure L 30x30s  R/G/B  à 7 x 60s


Total
36min
Links
WEBDA
Software
PixInsight

Location
IAS Hakos Farm, Namibia