MWC 922

Constellation
Serpens

Equatorial coordinates
α = 18 21 16.052
δ = -13 01 25.512

Galactic coordinates
l = 17.9275°
b = 0.6337°

Suspected	1973^Ref
Re-classified	2015^Ref
Type	Be star^Ref

Identifiers

MWC 922	IRAS 18184-1302	GSC2.4.2 S9KJ000382	AAVSO 000-BFV-026
SIMBAD EM* MWC 922	Pan-STARRS 92372753169061792	SAO -	VSX 225441
GAIA DR3 4152669158277634688	SkyMapper 182116.05-130125.5	WRAY -	GCVS -
2MASS J18211606-1301256	HIP -	Hen 3-1680	BD -
WISE -	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	-
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	-
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	275.3169^Ref	Parallax (mas)	-	Reddening E(B-V) (mag)	4.72±0.25^Ref ^{, Note}
Declination (°)	-13.0238^Ref	Distance (kpc)	1.7^Ref -^{, Note}
Galactic longitude (°)	17.9275^Ref	Proper motion in α (mas/yr)	-
Galactic latitude (°)	0.6337^Ref	Proper motion in δ (mas/yr)	-

Links

SIMBAD CDS Portal

Notes

Initially mentioned as a symbiotic star or reddened Be star by Allen (1973), this object was subsequently classified as a B[e] star in Chojnowski et al. (2015). Once again, it is noted as a possible symbiotic star by Bally & Chia (2019), based on the observation of a highly collimated jet.

References

Allen, D. A., 1973, MNRAS, 161, 145, 1973MNRAS.161..145A
Bally, J., Chia, Z. H., 2019, MNRAS, 484, 4, 4529, 2019MNRAS.484.4529B
Chojnowski, S. D., Whelan, D. G., Wisniewski, J. P. et al., 2015, AJ, 149, 1, 7, 2015AJ....149....7C