WhMe 1

Constellation
Sagitta

Equatorial coordinates
α = 19 14 59.725
δ = +17 22 45.930

Galactic coordinates
l = 51.0432°
b = 2.8115°

Suspected	2009^Ref
Re-classified	1986^Ref
Type	binary central star of PN with B9 component^Ref

Identifiers

WhMe 1	IRAS 19127+1717	GSC2.4.2 N2CW000543	AAVSO -
SIMBAD PN WhMe 1	Pan-STARRS 128852887488455848	SAO -	VSX -
GAIA DR3 4513629514212361984	SkyMapper -	WRAY -	GCVS -
2MASS J19145972+1722460	HIP -	Hen -	BD -
WISE J191459.72+172246.0	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 (°)	288.7489^Ref	Parallax (mas)	0.630±0.043^Ref	Reddening E(B-V) (mag)	1.75±0.06^Ref ^{, Note}
Declination (°)	17.3794^Ref	Distance (kpc)	1.52^Ref ^{, Note}, 1.47^Ref ^{, Note}
Galactic longitude (°)	51.0432^Ref	Proper motion in α (mas/yr)	-0.59±0.04^Ref
Galactic latitude (°)	2.8115^Ref	Proper motion in δ (mas/yr)	-6.08±0.04^Ref

Links

SIMBAD CDS Portal

Notes

Originally considered a possible symbiotic object by De Marco (2009), this star is also listed as a symbiotic star candidate in the HASH Database of PNe (Parker et al., 2016). The spectrum, however, reveals features consistent with a B9V star (Whitelock & Menzies, 1986).

References

De Marco, O., 2009, PASP, 121, 878, 316, 2009PASP..121..316D
Parker, Q. A., Bojičić, I. S., Frew, D. J., 2016, JPhCS, 728, 3, 032008, 2016JPhCS.728c2008P
Whitelock, P. A., Menzies, J. W., 1986, MNRAS, 223, 497, 1986MNRAS.223..497W