NGC 3077

100%  resolution (1.3MB)

150%  crop (0.4MB)

DSLR widefield image

Object data of NGC3077

Object type: Galaxy (Sd)
Size: 5.4' x 4.5'
Magnitude: 10.6 mag
Constellation: UMa
Distance: 13 Mio Ly
Notes: NGC 3077 is a small disrupted elliptical galaxy, which belongs to the M81 group of galaxies. Despite looking much like an elliptical galaxy, it is peculiar for two reasons. First, it shows wispy edges and scattered dust clouds that are probably a result of gravitational interaction with its larger neighbors. Second, this galaxy has an active nucleus.
Southeast of NGC 3077 one can find a fragmentary complex of almost stellar objects. These objects are part of a tidal arm, which has been created by a recent interaction with M81. Many faint compact H II regions in this complex were discovered by Walter et al in 2006. Some of these HII regions are visible in the 150% cropped image, together with many bluish stellar objects, indicating ongoing star formation.

Exposure data

Date: 2022-02-23 until 2022-03-25 (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 77x8min / RGB 27x8min each
Exposure time total: 21h 04min