Registry · deep sky

NGC 4490

GtowardsGroup SIMBAD GiG 620 papers

harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.

Right ascension: 12h 30m 34.49s
Declination: +41° 38′ 25.8″
Galactic l, b: 138.02, 74.87
Magnitude V: 9.79
Redshift z: 0.0019647
Radial velocity: 588.42 km/s
Angular size: 6.76′ × 2.14′

Also known as

48 identifiers

2MASX J12303636+41383702MASXI J1230368+4138256C 122808+4155387C 122808.30+415532.0087GB 122809.0+415515APG 269B3 1228+419B3 1228+419ABWE 1228+4155GB6 B1228+4155[H92] 25IRAS 12281+4155IRAS F12281+4155ISOSS J12305+4139KPG 341KPG 341bKUG 1228+419LEDA 41333[M98c] 122810.5+415456MY 122809.4+413914.6MY 122809.4+415548.4NGC 4490NVSS J123035+413851PSCz Q12281+4155RGB J1230+416RGB J1230.6+4138RX J1230.5+4139SDSS J123036.08+413835.6SDSS J123036.23+413840.7[T76] 69BTC 785UGC 7651UZC J123036.1+413834VV 30VV 30aWB 1228+4155WN B1228.1+4155Z 1228.1+4155Z 216-8[CAB95] IRAS F12281+4155[CHM2007] HDC 706 J123036.36+4138370[CHM2007] LDC 867 J123036.36+4138370Cocoon Galaxy[KOV2009] 67AMCG+07-26-014[NKB95] N4490[SLK2004] 716[VDD93] 162

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
CXOU J123035.2+413846	HighMassXBin	22.28″	—
[SST2011] J123036.32+413837.8	HighMassXBin	23.79″	—
CXO J123038.4+413831	HighMassXBin	43.05″	—
SN 1982F	Supernova	47.07″	—
CXOU J123030.4+413852	HighMassXBin	54.26″	—
[SST2011] J123032.27+413918.1	HighMassXBin	57.91″	—
[SST2011] J123030.82+413911.5	HighMassXBin	61.47″	—
SN 2008ax	Supernova	71.42″	23.5
2CXO J123029.4+413927	HighMassXBin	83.68″	—
AT 2011kp	Transient	90.04″	—
2XMM J123043.1+413819	HighMassXBin	98.5″	—

Provenance

where this card came from

Archive	Read at (UTC)	Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/ngc-4490 · Registry entry updated 2026-08-14.