PN M2-39

Constellation
Sagittarius

Equatorial coordinates
α = 18 22 01.161
δ = -24 10 39.974

Galactic coordinates
l = 8.1477°
b = -4.7508°

Suspected	1974^Ref
Re-classified	1992^Ref
Type	PN^Ref

Identifiers

PN M2-39	IRAS 18189-2412	GSC2.4.2 S9TG041811	AAVSO -
SIMBAD PN M 2-39	Pan-STARRS 78982755047957056	SAO -	VSX -
GAIA DR3 4089299595925528832	SkyMapper 182201.16-241039.8	WRAY 15-1866	GCVS -
2MASS J18220114-2410398	HIP -	Hen 2-391	BD -
WISE -	TYC -	ESO 522-20	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 (°)	275.5048^Ref	Parallax (mas)	0.051±0.040^Ref	Reddening E(B-V) (mag)	0.53±0.01^Ref ^{, Note}
Declination (°)	-24.1778^Ref	Distance (kpc)	7.80^Ref ^{, Note}, 5.97^Ref ^{, Note}
Galactic longitude (°)	8.1477^Ref	Proper motion in α (mas/yr)	-1.27±0.04^Ref
Galactic latitude (°)	-4.7508^Ref	Proper motion in δ (mas/yr)	-3.57±0.03^Ref

Links

SIMBAD CDS Portal

Notes

In Allen (1974), the object was classified as a compact PN resembling a late-type star, falling into the class S according to the classification by the author. It was noted that most objects in this class are symbiotics or VV Cephei-type stars. Classified as a true PN in Acker et al. (1992).

References

Acker, A., Marcout, J., Ochsenbein, F. et al., 1992, The Strasbourg-ESO Catalogue of Galactic Planetary Nebulae. Parts I, 1, 1992secg.book.....A
Allen, D. A., 1974, MNRAS, 168, 1, 1974MNRAS.168....1A