SMP LMC 104

Constellation
Hydrus

Equatorial coordinates
α = 04 24 37.494
δ = -69 42 21.664

Galactic coordinates
l = 282.3425°
b = -37.7465°

Suspected	2017^Ref
Re-classified	2020^Ref
Type	PN^Ref

Identifiers

SMP LMC 104	IRAS -	GSC2.4.2 S1J2010020	AAVSO -
SIMBAD SMP LMC 104	Pan-STARRS -	SAO -	VSX -
GAIA DR3 4655905253659285248	SkyMapper 042437.49-694222.0	WRAY -	GCVS -
2MASS J04243749-6942218	HIP -	Hen -	BD -
WISE J042437.49-694221.6	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 (°)	66.1562^Ref	Parallax (mas)	-0.459±0.304^Ref	Reddening E(B-V) (mag)	0.08±0.0^Ref ^{, Note}
Declination (°)	-69.7060^Ref	Distance (kpc)	49.97±0.19^Ref 6.24^Ref ^{, Note}, 3.73^Ref ^{, Note}
Galactic longitude (°)	282.3425^Ref	Proper motion in α (mas/yr)	0.96±0.44^Ref
Galactic latitude (°)	-37.7465^Ref	Proper motion in δ (mas/yr)	2.15±0.42^Ref

Links

SIMBAD CDS Portal

Notes

Suspected to be a symbiotic binary in Iłkiewicz & Mikołajewska (2017) based on the position of the star in the [O III] diagnostic diagrams. The infrared colors place this star near the region occupied by symbiotics. However, Hajduk (2020) failed to detect a red giant in the object and therefore reclassified the object as a young planetary nebula.

References

Hajduk, M., 2020, A&A, 642, A71, 2020A&A...642A..71H
Iłkiewicz, K., Mikołajewska, J., 2017, A&A, 606, A110, 2017A&A...606A.110I