Registry · deep sky

HD 228721

Star SIMBAD * G9.5IIIb 16 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: 20h 16m 52.85s
Declination: +37° 31′ 04.7″
Galactic l, b: 75.3, 1.179
Magnitude V: 8.59
Parallax: 3.7673 mas
Redshift z: -0.00015383
Radial velocity: -46.12 km/s
Proper motion: 25.96, -0.518 mas/yr

Also known as

20 identifiers

2MASS J20165284+3731048AG+37 1947BD+37 3865Cl* IC 4996 HOAG 2Gaia DR1 2060665728835473408Gaia DR2 2060665733151845120Gaia DR3 2060665733151845120GCRV 70814GEN# +3.49960057GSC 03151-00943HD 228721IC 4996 57NSV 25077PPM 84614SAO 69750TIC 12018859TYC 3151-943-1UBV M 39323uvby98 003703865WEB 17992

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
HD 228706	Star	146.5″	8.75
HD 193033	Star	285″	7.77
HD 193077	WolfRayet*	351.5″	8.01
2MASS J20162712+3734116	RGB*	358.4″	—
ZTF J201724.88+373024.6	EclBin	383.3″	—
V* V2244 Cyg	RRLyrae	390″	—
LS II +37 35	Star	394″	11.71
HD 228683	Star	436″	9.81
V* V2243 Cyg	EclBin	440.9″	17.42
Cl* IC 4996 VBP 105	Star	443.9″	14.55
IC 4996 21	Star	445.7″	12.28

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/hd-228721 · Registry entry updated 2026-08-14.