NGC6902 is an active spiral galaxy of Hubble-type SA(r)b in the constellation of Sagittarius.Sized 5.60 × 3.9 arcmin. and a visual brightness of 11mag.it can be observed with mid-sized telescopes of 6inch aperture or larger.
The real distance of this multi-armed galaxy is about 125mio.light-years away from our own milky-way.Together with the galaxy IC4946 (not on this photo) other weak examples it´s forming the NGC6902 galaxy-group.
NGC6902 was dicovered by John Herschel in 1836.
position (epoch 2000):
RA.:20h 24m 28,1s
Decl-: -43° 39′ 13″
LRGB image with L = 23x1200s, RGB = 8x1200s each,a total of 15.7 hours
80cm f/7 AstroOptik Keller corrected cassegrain FLI Proline 16803 Astrodon LRGB Gen-II filters
Prompt 7 CTIO/UNC Chile,remote controlled image
processing: Bernd Flach-Wilken
here you see the multi-armed spiral-galaxy NGC6902 in a 75%-FOV (17´x17´) together with PGC546866 to the upper right.
To get full resolution: click here
here is a more detailed look to NGC6902
click here for a look to NGC6902 with ESO´s SPECULOOS 1m Richtchey-Chrétien-telescope with its highly sensitive near-infrared camera