Registry · deep sky

ACO 1644

ClG SIMBAD ClG 392 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 57m 11.60s
Declination: −17° 24′ 34.0″
Galactic l, b: 304.89, 45.44
Redshift z: 0.0471
Radial velocity: 13,788 km/s
Angular size: 23.33′ × 23.33′

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
2MASX J12571157-1724344	LINER	0.5503″	—
[D80] ACO 1644 75	GtowardsCl	31.21″	—
SN 2011jn	Supernova	56.63″	—
LEDA 883849	EmissionG	139.7″	—
LEDA 882826	GtowardsCl	212.3″	—
6dFGS gJ125710.7-172811	GtowardsCl	217.8″	—
2MASX J12572332-1727031	GtowardsCl	224.7″	—
2MASX J12571506-1720504	GtowardsCl	229.2″	—
2MASX J12571304-1720264	GtowardsCl	248.6″	—
HD 112547	HighPM*	342.6″	7.93
MCG-03-33-023	EmissionG	357.5″	—

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/aco-1644 · Registry entry updated 2026-08-14.