Registry · deep sky

HD 239729

YSO SIMBAD Y*O B0V 83 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: 21h 39m 27.41s
Declination: +57° 29′ 00.8″
Galactic l, b: 99.337, 3.69
Magnitude V: 8.35
Parallax: 1.0704 mas
Redshift z: -2.001e-05
Radial velocity: -6 km/s
Proper motion: -2.523, -4.636 mas/yr

Also known as

31 identifiers

2MASS J21392739+5729007AG+57 1469ALS 11943BD+56 2620CCDM J21395+5729ACl* Trumpler 37 MPP 12Cl* Trumpler 37 MVA 464Gaia DR1 2178385387943956864Gaia DR2 2178385392251185280Gaia DR3 2178385392251185280GCRV 72394GEN# +4.35370477GSC 03975-00236HD 239729HGAM 1021HIC 106937HIP 106937IDS 21364+5702 ALS III +57 16PPM 39718SAO 33637SKY# 41286** STI 2582ATIC 421632297Cl Trumpler 37 477TYC 3975-236-1UBV M 28000WDS J21395+5729AYZ 57 12407[MMC2009b] 29[PGH98b] Star 50

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
IRAS 21378+5715	YSO	20.95″	11.03
Gaia DR3 2178397143281703808	YSO	32.63″	—
ZTF J213924.39+572820.9	OrionV*	46.69″	—
2MASS J21392570+5729455	TTauri*	46.74″	18.27
ZTF J213930.42+572819.0	BYDraV*	48.31″	—
2MASS J21393295+5727510	YSO	82.95″	—
Cl Trumpler 37 473	gammaDorV*	85.94″	10.51
2MASS J21391732+5730085	YSO	105.7″	18.47
Cl Trumpler 37 470	YSO	111.8″	12.36
ZTF J213932.75+572715.0	BYDraV*	114.2″	—
Gaia DR3 2178386835360448128	YSO	128.5″	—

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/hd-239729 · Registry entry updated 2026-08-14.