Registry · deep sky

Hornoch 21

Nova SIMBAD No* 6 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: 00h 42m 40.20s
Declination: +41° 14′ 43.5″
Galactic l, b: 121.16, -21.6

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
Ford M 31 66	PlanetaryNeb	5.403″	22.08
[CFN87] 31	Nova	12.89″	17
CXOM31 J004239.5+411428	X	16.78″	—
Ford M 31 70	PlanetaryNeb	19.09″	22.09
Ford M 31 55	PlanetaryNeb	22.37″	21.37
RX J004241.6+411440	X	24.08″	—
Ford M 31 143	PlanetaryNeb	26.08″	23.13
Ford M 31 65	PlanetaryNeb	27.46″	22.04
2MASS J00424214+4114241	PlanetaryNeb	29.32″	22.51
Ford M 31 71	PlanetaryNeb	31.72″	21.59
Ford M 31 181	PlanetaryNeb	33.53″	21.84

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/hornoch-21 · Registry entry updated 2026-08-14.