UPSA Object Registry
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NGC 4639

Seyfert1 SIMBAD Sy1 648 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 42m 52.38s
Declination
+13° 15′ 26.7″
Galactic l, b
294.3, 75.99
Magnitude V
12.72
Parallax
2.6549 mas
Redshift z
0.0032776
Radial velocity
981 km/s
Proper motion
-0.202, 0.598 mas/yr
Angular size
2.262′ × 1.746′

Also known as

48 identifiers

1E 1240.3+13311RXP J124252.2+1315271RXS J124252.5+1315302E 1240.3+13312E 28302MASX J12425235+13152712XMM J124252.3+131526ALFALFA 1-393EVCC 1080Gaia DR2 3929168577827555712Gaia DR3 3929168577827555712GSC 00881-00278INTREF 520IRAS 12403+1331IRAS F12403+1331ISOSS J12428+1315LEDA 42741[M98c] 124021.7+133156NGC 4639NVSS B124021+133207PSCz Q12403+1331RX J1242.8+1315SDSS J124251.27+131545.4SDSS J124252.36+131526.5SDSS J124252.37+131526.4UGC 7884UZC J124252.4+131526VCC 1943WISE J124252.39+131526.8Z 1240.4+1332Z 70-230Z 71-8[BEC2010] HRS 242[CHM2007] HDC 720 J124252.35+1315271[CHM2007] LDC 904 J124252.35+1315271[DSB94] 303[HSN2016] J190.71+13.25[LB2005] NGC 4639 X1MCG+02-32-189[SLK2000] 47[SLK2004] 731[VV2000c] J124252.5+131525[VV2003c] J124252.5+131525[VV2006c] J124252.5+131525[VV2010c] J124252.5+131525[VV98c] J124252.6+131531[YOF95] 227[ZEH2003] RX J1242.8+1315 2

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
SN 1990N Supernova 62.89″ 12.62
LEDA 42731 Galaxy 135.7″ —
SN 2018imf Supernova 162.9″ —
Z 71-3 LowSurfBrghtG 173″ —
2MASS J12423930+1315520 QSO 192.6″ —
ACT-CL J1243.2+1312 ClG 317.6″ —
LP 495-251 HighPM* 331.9″ —
SDSS J124252.54+130944.1 Galaxy 342.6″ —
LP 495-252 WhiteDwarf 344.4″ —
LEDA 42788 Galaxy 359.4″ —
LEDA 1429013 Galaxy 367.7″ —

Provenance

where this card came from
ArchiveRead at (UTC)Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/ngc-4639 · Registry entry updated 2026-08-14.