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EntityQ1044021· pop 33· linked from 379 articles

barred spiral galaxy in the constellation Reticulum

Key facts

Constellation
Reticulum
Right ascension
04 17 35.7506
Declination
−62 ° 47 ′ 01.316 ″
Redshift
1304 ± 4 km/ s
Distance
48.73 ± 2.18 Mly (14.942 ± 0.669 Mpc )
Type
SB(s)cd
Size
~75,600 ly (23.17 kpc ) (estimated)
Apparent size v
3.5′ × 2.0′

via Wikipedia infobox

Wikidata facts

Constellation
Reticulum
Distance from Earth
14.3
Image
The light of knowledge (potw2438a).jpg
Show 14 more facts
right ascension
64.39895884126910
catalog code
Gaia DR2 4676459725889776768
declination
-62.78367365166930
Commons category
NGC 1559
discoverer or inventor
James Dunlop
time of discovery or invention
1826-00-00
apparent magnitude
8.018
galaxy morphological type
SB(s)cd
parallax
0.1825
radial velocity
1295
redshift
0.004310
epoch
J2000.0
right ascension component of proper motion
0.199
declination component of proper motion
-3.935
Sources (1)

via Wikidata · CC0

~2 min read

Encyclopedic overview

NGC 1559 is a barred spiral galaxy in the constellation Reticulum. It was discovered on 6 November 1826 by Scottish astronomer James Dunlop.

NGC 1559 is a Seyfert galaxy, i.e. it has a quasar-like nuclei with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable. Although it was originally thought to be a member of the Dorado Group, subsequent observations have shown that it is in fact not a member of any galaxy group or cluster and does not have any nearby companions. NGC 1559 has massive spiral arms and strong star formation. It contains a small bar which is oriented nearly east–west and spans 40″. Its bar and disc are the source of very strong radio emissions.

Excerpted from Wikipedia’s “Q1044021” article, available under the CC BY-SA 4.0 licence.