Registry · deep sky

EM* AS 401

Be* SIMBAD Be* OB 17 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 18m 41.71s
Declination: +37° 59′ 10.6″
Galactic l, b: 75.889, 1.145
Magnitude V: 11.37
Parallax: 0.4478 mas
Redshift z: 4.203e-05
Radial velocity: 12.6 km/s
Proper motion: -4.159, -6.408 mas/yr

Also known as

18 identifiers

2MASS J20184170+3759106ALS 11128AP J20184170+3759106[D75b] Em* 20+040EM* AS 401Gaia DR1 2061054887231239680Gaia DR2 2061054891538362240Gaia DR3 2061054891538362240GSC 03151-02995HBHA 3703-18Hen 3-1876[KW97] 45-11LS II +37 56MHA 328-89[NH52] 31TIC 273899079TYC 3151-2995-1CSI+37-20169

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
2MASS J20184797+3801036	Star	135.1″	—
ATO J304.7290+37.9480	ClassicalCep	208.7″	—
Kiso J201901.60+375512.1	EclBin	334.9″	—
LS II +37 54	Star	406.9″	10.82
HD 193444	Star	535.4″	8.44

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/em-as-401 · Registry entry updated 2026-08-14.