Registry · deep sky

NGC 4644A

GinPair SIMBAD GiP 85 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 42.65s
Declination: +55° 08′ 43.9″
Galactic l, b: 125.58, 61.94
Redshift z: 0.01644
Radial velocity: 4,888.1 km/s
Angular size: 1.515′ × 0.4935′

Also known as

20 identifiers

2MASX J12424266+5508435[D70] Haro32DGaia DR2 1571251559755433344Gaia DR3 1571251559755433344KPG 352KPG 352aLEDA 42708NGC 4644NGC 4644ASBSG 1240+554BSDSS J124242.65+550844.0SDSS J124242.66+550843.8SDSS J124242.66+550843.9UGC 7887UZC J124242.9+550841Z 1240.4+5525Z 270-14[CHM2007] HDC 726 J124242.66+5508435[CHM2007] LDC 914 J124242.66+5508435MCG+09-21-030

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
SN 2007cm	Supernova	25.37″	16.1
NGC 4644B	GinPair	86.38″	—
LEDA 2816018	Galaxy	122.2″	—
SDSS J124220.93+550249.3	QSO	400.6″	—
SDSS J124152.01+551133.0	QSO	465.6″	—

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-4644a · Registry entry updated 2026-08-14.