StHA 180

CONFIRMED MILKY WAY

Constellation
Aquarius

Equatorial coordinates
α = 20 39 20.605
δ = -05 17 16.399

Galactic coordinates
l = 40.8830°
b = -26.3609°

Suspected	1988^Ref
Confirmed	1988^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

StHA 180	IRAS -	GSC2.4.2 S9X0000165	AAVSO 000-BJT-473
SIMBAD EM* StHA 180	Pan-STARRS 101653098358605078	SAO -	VSX 239249
GAIA DR3 6908433150198135936	SkyMapper 203920.60-051716.2	WRAY -	GCVS -
2MASS J20392060-0517163	HIP -	Hen -	BD -
WISE J203920.60-051716.3	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	StHA 180 (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	StHA 180 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	309.8359^Ref	Parallax (mas)	0.105±0.019^Ref	Reddening E(B-V) (mag)	0.05±0.0^Ref ^{, Note}
Declination (°)	-5.2879^Ref	Distance (kpc)	7.71^Ref ^{, Note}, 7.12^Ref ^{, Note}
Galactic longitude (°)	40.8830^Ref	Proper motion in α (mas/yr)	-0.73±0.02^Ref
Galactic latitude (°)	-26.3609^Ref	Proper motion in δ (mas/yr)	-4.46±0.02^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	-
X-Ray type	-	J (mag)	9.61^Ref	Flickering	No^Ref
GALEX FUV (mag)	14.34^Ref	H (mag)	8.70^Ref	Outbursts	-
GALEX NUV (mag)	14.88^Ref	K (mag)	8.50^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	8.37^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	8.47^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	8.17^Ref	IPmax (eV)	54.4^Ref
B (mag)	14.08^Ref	WISE W4 (mag)	7.68^Ref	[O III] lines	No^Ref
V (mag)	12.65^Ref	IRAS 12μm (Jy)	-	He II lines	Yes^Ref
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	12.82^Ref	IRAS 100μm (Jy)	-
G (mag)	11.90^Ref	AKARI S09 (Jy)	-
RP (mag)	10.94^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	1494±38^Ref	γ velocity (km/h)	20.25±0.60^Ref	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	Min (V) = 2451332 + 1494±38 x E^Ref

Cool component

Spectral type	mid M^Ref	Mass (M_⊙)	-	Pulsation	-
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	-
IR type	S^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 ARAS Database

Notes

References

Downes, R. A., Keyes, C. D., 1988, AJ, 96, 777, 1988AJ.....96..777D
Merc, J., Beck, P. G., Mathur, S. et al., 2023, arXiv, arXiv:2312.16126, 2023arXiv231216126M

Last updated: January 13, 2024