Hemisphere:  Southern  ·  Constellation: Columba (Col)  ·  Contains:  NGC 1808  ·  NGC1808
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NGC 1808: Surrounded by Companions, 


            Russ Carpenter
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NGC 1808: Surrounded by Companions

Technical card

Dates:Dec. 16, 2020

Frames: 15x600"

Integration: 2.5 hours

Avg. Moon age: 2.01 days

Avg. Moon phase: 4.48%

Astrometry.net job: 4110526

RA center: 5h 7' 45"

DEC center: -37° 30' 14"

Pixel scale: 0.957 arcsec/pixel

Orientation: 89.265 degrees

Field radius: 0.380 degrees

Resolution: 2036x2013

Data source: Amateur hosting facility

Remote source: ChileScope


NGC 1808 barred spiral galaxy in the constellation of Columba. It is actually a complex object, with a weak bar around the nucleus, an outer ring, and tightly wound spiral arms. This galaxy has a high level of star formation, which suggests that it may have had an interaction with NGC 1792 in the past. NGC 1808 has 11 companion galaxies.

NGC 1808 is a “peculiar” galaxy, appearing in the Catalog of Southern Peculiar Galaxies and Associations, by Halton Arp and Barry Madore. It meets the criteria for two different categories of peculiar galaxies:

Category 8—Galaxies with Apparent Companions
Category 10—Galaxies with Prominent or Unusual Dust Absorption

Tech Notes for ASA 500/3.6:
ASA Newtonian, 500 mm aperture, 1900mm focal length, F3.6
FLI Proline 16803, 9 mm pixel, 4096 X 4096
ASA DDM85 equatorial mount
Processing with PixInsight, StarTools, and Affinity Photo


Sky plot

Sky plot


NGC 1808: Surrounded by Companions, 


            Russ Carpenter