NGC 4755  -  Jewel Box

60%  resolution (2.1MB)

DSLR widefield image

Object data of NGC4755

Object type: Open star cluster (I3r)
Size: 10'
Magnitude: 4.0 mag
Constellation: Cru
Distance: 6,400 Ly
Notes: NGC 4755, the Jewel Box, is an open star cluster in the constellation Crux. This cluster is one of the youngest known, with an estimated age of 14 million years.

Exposure data

Date: 2014-03-07 + 2014-03-08
Location: Hacienda Los Andes / Chile (1100m)
Telescope: TEC RC 20" f/9 with corrector (f=4492mm)
Camera: FLI PL16803 with Astrodon filters
Binning: L 1x1 / RGB 1x1
Mount: Astro-Physics AP1600GTO
Exposure time: L 27x2min / R 7x2min / G 7x2min / B 7x2min
Exposure time total: 1h 36min
Notes: Image acquisition by CEDIC team (Bernhard Hubl, Christoph Kaltseis, Wolfgang Leitner and Herbert Walter)

Image processing by Bernhard Hubl