Registry · deep sky

* 15 Mon

Be* SIMBAD Be* O7V+B1.5/2V 825 papers

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Right ascension: 06h 40m 58.66s
Declination: +09° 53′ 44.7″
Galactic l, b: 202.94, 2.198
Magnitude V: 4.68
Parallax: 3.55 mas
Redshift z: 7.339e-05
Radial velocity: 22 km/s
Proper motion: -2.61, -1.61 mas/yr

Also known as

73 identifiers

* 15 Mon* 15 Mon A1ES 0638+09.91RXS J064059.3+0953302E 0638.2+09562E 17232MASS J06405866+09534473XMM J064058.6+095345AAVSO 0635+09ADS 5322 AAG+09 754ALS 9090ASCC 1021435BD+10 1220CCDM J06410+0953ACGO 140** CHR 168Cl* NGC 2264 RMS 3295Cl* NGC 2264 VAS 245Cl* NGC 2264 WALK 131CSI+10 1220 1CXORRS J064058.7+095344CXOU J064058.6+095344EM* CDS 628EUVE J0640+09.8Gaia DR2 3326740865570982400Gaia DR3 3326740865570982400GC 8720GCRV 4334GEN# +1.00047839GEN# +2.22640131GOS G202.94+02.20 01GSC 00750-01880HD 47839HIC 31978HIP 31978[HJ56] 93HR 2456IDS 06355+0959 A[II78] 37JP11 3984LS VI +09 14MCW 464MPCM J064058.66+095344.7N30 1451NGC 2264 131PLX 1560PLX 1560.00PMSC 06355+0959APMSC 06355+0959AabROT 3602* S Mon* S Mon AV* S MonSAO 114258SBC9 1725[SC93] 364SKY# 11681SSTGLMA G202.9364+02.1985** STF 950ATD1 7778TIC 220322383TYC 750-1880-1UBV 6623UBV M 31913uvby98 222640131WDS J06410+0954AWDS J06410+0954Aa,AbWEB 6438WISE J064058.66+095344.5[DSP2007] 42[FMS2000] X67[RRS2004] NGC 2264 196

In the same field

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Object	Type	Separation	V
* 15 Mon B	Star	2.95″	7.83
Cl* NGC 2264 VAS 90	YSO	16.54″	10.5
Cl* NGC 2264 RMS 3280	YSO	17.33″	—
[SBC2004b] CFHT 8089	YSO	21.48″	18.77
Cl* NGC 2264 RMS 3353	YSO	26.42″	17.49
Cl* NGC 2264 SBL 252	YSO	26.81″	15.86
Cl* NGC 2264 RMS 3313	YSO	30.81″	17.63
Cl* NGC 2264 RMS 3296	YSO	31.48″	—
Cl* NGC 2264 SBL 256	YSO	32.24″	15.72
Cl* NGC 2264 SBL 247	YSO	37.77″	15.42
Gaia DR3 3326740762491769088	YSO Candidate	38.04″	—

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/15-mon · Registry entry updated 2026-08-14.