Q490345

Also known as C 23, Silver Sliver Galaxy, Outer Limits Galaxy

galaxy in the constellation Andromeda

Key facts

Constellation: Andromeda
Right ascension: 02 22 33.4
Declination: +42 ° 20 ′ 57 ″
Redshift: 528 ± 4 km/ s
Distance: 27.3 ± 1.8 Mly (8.4 ± 0.5 Mpc )
Type: SA(s)b?
Size: 130,700 ly (40.09 kpc ) (estimated)
Apparent size v: 13′.5 × 2′.5

via Wikipedia infobox

Wikidata facts

Distance from Earth: 9.17
Image: N891s.jpg

Show 9 more facts

declination: 42.3483194
Commons category: NGC 891
catalog code: Caldwell 23
time of discovery or invention: 1784-10-06
apparent magnitude: 5.938
galaxy morphological type: SA(s)b?
redshift: 0.001761
right ascension: 35.6371125
radial velocity: 72

Sources (2)

via Wikidata · CC0

~4 min read

Article

NGC 891 (also known as Caldwell 23, the Silver Sliver Galaxy, and the Outer Limits Galaxy) is an edge-on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda. It was discovered by William Herschel on October 6, 1784. The galaxy is a member of the NGC 1023 group of galaxies in the Local Supercluster. It has an H II nucleus.

The object is visible in small to moderate size telescopes as a faint elongated smear of light with a dust lane visible in larger apertures.