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EntityQ1041706· pop 30· linked from 487 articles

galaxy

Key facts

Constellation
Eridanus
Right ascension
02 51 40.4544
Declination
−16 ° 39 ′ 02.304 ″
Redshift
0.010 931 ± 0.000 017
Heliocentric radial velocity
3,277 ± 5 km/s
Distance
148.5 ± 10.4 Mly (45.53 ± 3.20 Mpc )
Type
(R')SB0/a?(r)
Size
~126,000 ly (38.64 kpc ) (estimated)
Apparent size v
1.8′ × 0.9′

via Wikipedia infobox

Wikidata facts

Constellation
Eridanus
Image
NGC 1125 DSS.jpg
Show 11 more facts
catalog code
PBC J0251.6-1640
redshift
0.011024
Commons category
NGC 1125
time of discovery or invention
1785-10-06
discoverer or inventor
William Herschel
galaxy morphological type
SB0-a
apparent magnitude
12.48
right ascension
42.91792
declination
-16.65111
radial velocity
3287
epoch
J2000.0
Sources (1)

via Wikidata · CC0

~1 min read

Encyclopedic overview

NGC 1125 is a barred spiral galaxy in the constellation of Eridanus. Its velocity with respect to the cosmic microwave background is 3,087±14 km/s, which corresponds to a Hubble distance of 148.5 ± 10.4 Mly (45.53 ± 3.20 Mpc). It was discovered by German-British astronomer William Herschel on 6 October 1785.

NGC 1125 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable. The strongest emission from ionized and molecular gas is seen about 300 parsecs away from the galaxy’s center.

Excerpted from Wikipedia’s “Q1041706” article, available under the CC BY-SA 4.0 licence.