1RXS J180431.1-273932

Constellation
Sagittarius

Equatorial coordinates
α = 18 04 30.124
δ = -27 39 34.133

Galactic coordinates
l = 3.2004°
b = -2.9442°

Suspected	2007^Ref
Re-classified	2012^Ref
Type	magnetic CV^Ref

Identifiers

1RXS J180431.1-273932	IRAS -	GSC2.4.2 S9TK111548	AAVSO -
SIMBAD 1RXS J180431.1-273932	Pan-STARRS 74802711255568944	SAO -	VSX 895712
GAIA DR3 4062937670762635264	SkyMapper -	WRAY -	GCVS -
2MASS J18043013-2739340	HIP -	Hen -	BD -
WISE J180430.12-273934.2	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 (°)	271.1255^Ref	Parallax (mas)	0.013±0.081^Ref	Reddening E(B-V) (mag)	0.77±0.01^Ref ^{, Note}
Declination (°)	-27.6595^Ref	Distance (kpc)	10^Ref 7.85^Ref ^{, Note}, 8.49^Ref ^{, Note}
Galactic longitude (°)	3.2004^Ref	Proper motion in α (mas/yr)	-1.62±0.08^Ref
Galactic latitude (°)	-2.9442^Ref	Proper motion in δ (mas/yr)	-3.49±0.06^Ref

Links

SIMBAD CDS Portal

Notes

Suspected of symbiotic nature based on X-ray emission, with an identified optical counterpart as an M giant, according to Nucita et al. (2007). However, Masetti et al. (2012) suggested that the object is more likely a magnetic CV.

References

Masetti, N., Nucita, A. A., Parisi, P., 2012, A&A, 544, A114, 2012A&A...544A.114M
Nucita, A. A., Carpano, S., Guainazzi, M., 2007, A&A, 474, 1, L1, 2007A&A...474L...1N