Key facts
- Constellation
- Coma Berenices
- Right ascension
- 12 34 50.9
- Declination
- 15 ° 33 ′ 06 ″
- Heliocentric radial velocity
- 1291 km/s
- Distance
- 64 Mly
- Group or cluster
- Virgo Cluster
- Type
- SAB(rs)cd, Sy1
- Size
- ~39,120 ly (estimated)
- Apparent size v
- 1.9 x 1.5
via Wikipedia infobox
Wikidata facts
- Instance of
- spiral galaxy
- Constellation
- Coma Berenices
- Distance from Earth
- 16.7
- Image
- NGC 4540 hst 08599 606.png
Show 11 more facts
- Commons category
- NGC 4540
- catalog code
- Gaia DR2 3933547722187967872
- discoverer or inventor
- William Herschel
- time of discovery or invention
- 1784-00-00
- apparent magnitude
- 11.778
- radial velocity
- 1200
- galaxy morphological type
- Scd
- redshift
- 0.004160
- right ascension
- 188.71197562998310
- declination
- 15.55169851435850
- epoch
- J2000.0
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
NGC 4540 is a spiral galaxy with type 1 Seyfert activity located about 64 million light-years away in the constellation Coma Berenices. NGC 4540 was discovered by astronomer William Herschel on March 21, 1784 and is a member of the Virgo Cluster.
See also
Excerpted from Wikipedia’s “NGC 4540” article, available under the CC BY-SA 4.0 licence.
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