Sa 3-104

MISCLASSIFIED MILKY WAY

Constellation
Sagittarius

Equatorial coordinates
α = 17 58 25.905
δ = -29 20 48.614

Galactic coordinates
l = 1.0724°
b = -2.6163°

Suspected	2009^Ref
Re-classified	2013^Ref
Type	HII region or Be star^Ref

Identifiers

Sa 3-104	IRAS 17552-2920	GSC2.4.2 S8DJ430333	AAVSO -
SIMBAD PN Sa 3-104	Pan-STARRS 72782696079324109	SAO -	VSX 306016
GAIA DR3 4062337577973897600	SkyMapper -	WRAY -	GCVS -
2MASS J17582591-2920484	HIP -	Hen -	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 (°)	269.6079^Ref	Parallax (mas)	-0.059±0.134^Ref	Reddening E(B-V) (mag)	0.84±0.04^Ref ^{, Note}
Declination (°)	-29.3468^Ref	Distance (kpc)	8.19^Ref ^{, Note}, 8.67^Ref ^{, Note}
Galactic longitude (°)	1.0724^Ref	Proper motion in α (mas/yr)	-6.31±0.12^Ref
Galactic latitude (°)	-2.6163^Ref	Proper motion in δ (mas/yr)	-8.16±0.08^Ref

Links

SIMBAD CDS Portal

Notes

Initially suspected of symbiotic nature by Miszalski et al. (2009), the object was reclassified as a Be star or HII region by Miszalski et al. (2013).

References

Miszalski, B., Acker, A., Moffat, A. F. J. et al., 2009, A&A, 496, 3, 813, 2009A&A...496..813M
Miszalski, B., Mikołajewska, J., Udalski, A., 2013, MNRAS, 432, 4, 3186, 2013MNRAS.432.3186M

Last updated: July 5, 2020