Astronomical data · SIMBAD
- Object type
- GiG
- Redshift
- z = 0.02477
- Morphology
- E
- Coordinates
- RA 188.9411° · Dec 26.9089°
View on SIMBAD →
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Coma Berenices
- Right ascension
- 12 35 45.8
- Declination
- 26 ° 54 ′ 32 ″
- Heliocentric radial velocity
- 7424 km/s
- Distance
- 340 Mly (105 Mpc )
- Type
- cD, E+
- Size
- ~167,500 ly (51.36 kpc ) (estimated)
- Apparent size v
- 1.35′ × 0.93′
via Wikipedia infobox
Wikidata facts
- Instance of
- elliptical galaxy
- Constellation
- Coma Berenices
- Distance from Earth
- 115.93
- Image
- NGC4556 - SDSS DR14.jpg
Show 11 more facts
- time of discovery or invention
- 1785-04-11
- catalog code
- LEDA 41980
- discoverer or inventor
- William Herschel
- apparent magnitude
- 9.906
- galaxy morphological type
- E/S0
- Commons category
- NGC 4556
- right ascension
- 188.9410708
- declination
- 26.9088222
- radial velocity
- 7466
- redshift
- 0.025221
- epoch
- J2000.0
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
NGC 4556 is an elliptical galaxy and a cD galaxy located 340 million light-years away in the constellation Coma Berenices. It was discovered on April 11, 1785, by astronomer William Herschel. NGC 4556 is a member of a group of 12 galaxies known as [T2015] nest 100082, or the NGC 4555 Group, and is part of the Coma Supercluster.
NGC 4556 is host to a supermassive black hole with an estimated mass of 1.1 × 10 M☉.
Excerpted from Wikipedia’s “NGC 4556” article, available under the CC BY-SA 4.0 licence.
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