Hen 2-139

CONFIRMED MILKY WAY

Constellation
Norma

Equatorial coordinates
α = 15 54 44.430
δ = -55 29 34.087

Galactic coordinates
l = 326.9130°
b = -1.3991°

Suspected	1984^Ref
Confirmed	1984^Ref
Symbiotic IR type	D^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

Hen 2-139	IRAS 15508-5520	GSC2.4.2 S7EF012833	AAVSO 000-BDB-450
SIMBAD WRAY 16-193	Pan-STARRS -	SAO -	VSX 58862
GAIA DR3 5884529954949098752	SkyMapper 155444.43-552933.9	WRAY 16-193	GCVS -
2MASS J15544444-5529341	HIP -	Hen 2-139	BD -
WISE J155444.44-552933.9	TYC -	ESO 178-2	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	He2-139 (Conf.)	Belzcyński et al. (2001)	Hen 2-139 (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	He2-139 (Conf.)	Akras et al. (2019)	Hen 2-139 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	M-52 (Conf.)

Position

Right ascension (°)	238.6851^Ref	Parallax (mas)	0.315±0.071^Ref	Reddening E(B-V) (mag)	1.58±0.09^Ref ^{, Note}
Declination (°)	-55.4928^Ref	Distance (kpc)	2.70^Ref ^{, Note}, 2.85^Ref ^{, Note}
Galactic longitude (°)	326.9130^Ref	Proper motion in α (mas/yr)	-6.10±0.08^Ref
Galactic latitude (°)	-1.3991^Ref	Proper motion in δ (mas/yr)	-3.71±0.06^Ref

Observations

X-Ray	No^Ref	IR type	D^Ref	Radio	No^Ref
X-Ray type	-	J (mag)	8.38^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	6.92^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	5.95^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	4.89^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	3.85^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	2.57^Ref	IPmax (eV)	35.1^Ref
B (mag)	-	WISE W4 (mag)	1.49^Ref	[O III] lines	Yes^Ref
V (mag)	16.80^Ref	IRAS 12μm (Jy)	5.87^Ref	He II lines	No^Ref
R (mag)	-	IRAS 25μm (Jy)	2.99^Ref	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	10.30^Ref	O VI lines	No^Ref
BP (mag)	17.33^Ref	IRAS 100μm (Jy)	140.00^Ref
G (mag)	14.44^Ref	AKARI S09 (Jy)	4.31^Ref
RP (mag)	12.86^Ref	AKARI S18 (Jy)	2.88^Ref

Orbit

Orbital period (days)	-	γ velocity (km/h)	-	Size of giant’s orbit (AU)	-
Eccentricity	-	RV of giant (km/h)	-	Separation (AU)	-
Inclination (°)	-	Inferior conj. of giant (JD)	-	Mass function	-
Eclipses	-			Mass ratio	-
Orbital ephemeris	-

Cool component

Spectral type	M6.5 III^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	Mira^Ref
IR type	D^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	-
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

Type/Spectral type	-	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	-	Accretion disk	-
Eff. temperature (K)	-	Luminosity (L_⊙)	-
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal

Notes

References

Allen, D. A., Swings, J. P., 1976, A&A, 47, 293, 1976A&A....47..293A
Allen, D. A., 1984, PASA, 5, 3, 369, 1984PASA....5..369A
Mürset, U., Schmid, H. M., 1999, A&AS, 137, 473, 1999A&AS..137..473M
Whitelock, P. A., 1987, PASP, 99, 573, 1987PASP...99..573W

Last updated: April 15, 2022