Palomar 10

100%  resolution (4.1MB)

Image with removed interstellar reddening (4.1MB)

Mouse over animation removing interstellar reddening

DSLR widefield image

Object data of Palomar10

Object type: Globular star cluster (XII)
Size: 4'
Magnitude: 13.2 mag
Constellation: Sge
Distance: 20,000 Ly
Notes: Palomar 10 (Pal 10) is a globular star cluster located approximately 20,000 light-years away in the constellation Sagitta. This cluster is heavily obscured by the dust of the Milky Way which leads to be being strongly reddened:

E(B-V) = 1.66mag

To unveil the 'real' star colours of Pal 10 by removing the interstellar reddening, the green and blue colour weight factors have to be significantly increased. In the image, which can be accessed via the link above, the green weight was increased by a factor of 3 and the blue weight was increased by a factor of 7.

Exposure data

Date: 2019-06-26 until 2019-07-04 (6 nights)
Location: Nussbach / Austria (400m)
Telescope: 12" Newtonian telescope (f=1120mm)
Camera: QSI 660wsg-8 with Astrodon filters
Binning: L 1x1 / RGB 1x1
Mount: ASA DDM85
Exposure time: L 62x8min / R 21x8min / G 21x8min / B 21x8min
Exposure time total: 16h 40min