Registry · deep sky

BD+40 4227A

SB* SIMBAD SB* O6Ib(fc)+O4.5:III:(fc) 253 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 33m 15.08s
Declination: +41° 18′ 50.5″
Galactic l, b: 80.224, 0.7873
Magnitude V: 8.98
Parallax: 0.6058 mas
Redshift z: 0.00041891
Radial velocity: 125.56 km/s
Proper motion: -2.664, -4.106 mas/yr

Also known as

53 identifiers

1E 203127+4108.51ES 2031+41.11RXS J203315.8+4118482E 2031.4+41082E 43822MASS J20331508+41185042XMM J203315.0+4118503XMM J203315.0+411850ADS 14000 AAG+41 1925ALS 11423** ARN 77ABD+40 4227BD+40 4227ACCDM J20332+4119ACGO 605CSI+40 4227 1CXOCyg J203315.07+411850.3EM* CDS 1173Gaia DR2 2067784624247057920Gaia DR3 2067784624247057920GCRV 20036GEN# +9.00030008GOS G080.22+00.79 01GSC 03161-01325** HER 4HIC 101425Hilt 996HIP 101425** HJ 1539A[HJ56] 220IDS 20297+4058 ALS III +41 37[MM53] Cyg OB2 8A[MT91] 465PPM 60129SAO 49781Schulte 8ATIC 17450216TYC 3161-1325-1UBV 17839UCAC3 263-196673WDS J20333+4119A[AFM2007] 568Cyg OB2 8Cyg OB2 8A[HFE83] 1374[MHG2003] h[R2011] IDOM 126[R2011] IDX 96[SKV93] 3-52VI Cyg 8VI Cyg 8A

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
Cl Bica 2	OpenCluster	8.525″	—
BD+40 4227B	Star	9.453″	10.7
Schulte 8D	SB*	18.19″	12.02
2MASS J20331538+4119128	Star	22.61″	15.89
2MASS J20331443+4119238	YSO Candidate	34.12″	15.67
Ass Cyg OB 2	Association	35.96″	—
Schulte 8C	Variable*	37.98″	10.19
ALS 15175	Star	43.46″	14.67
CXOCyg J203319.58+411906.4	Star	53.34″	15.49
CXOCyg J203320.39+411840.8	Star	60.71″	15.16
2MASS J20331137+4117585	Star	66.62″	14.38

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/bd-40-4227a · Registry entry updated 2026-08-14.