2MASS J18300636-1940315

CONFIRMED MILKY WAY

Constellation
Sagittarius

Equatorial coordinates
α = 18 30 06.364
δ = -19 40 31.716

Galactic coordinates
l = 13.0225°
b = -4.3378°

Suspected	2014^Ref
Confirmed	2014^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

2MASS J18300636-1940315	IRAS 18271-1942	GSC2.4.2 SA7W047005	AAVSO -
SIMBAD 2MASS J18300636-1940315	Pan-STARRS 84382775265099789	SAO -	VSX -
GAIA DR3 4092813080982916736	SkyMapper -	WRAY -	GCVS -
2MASS J18300636-1940315	HIP -	Hen -	BD -
WISE J183006.36-194031.6	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	-
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	2MASSJ18300636-1940315 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	277.5265^Ref	Parallax (mas)	-0.076±0.042^Ref	Reddening E(B-V) (mag)	0.74±0.02^Ref ^{, Note}
Declination (°)	-19.6755^Ref	Distance (kpc)	10.78^Ref ^{, Note}, 9.75^Ref ^{, Note}
Galactic longitude (°)	13.0225^Ref	Proper motion in α (mas/yr)	-2.41±0.05^Ref
Galactic latitude (°)	-4.3378^Ref	Proper motion in δ (mas/yr)	-4.83±0.03^Ref

Observations

X-Ray	-	IR type	S^Ref	Radio	-
X-Ray type	-	J (mag)	11.07^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	9.96^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	9.55^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	9.31^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	9.28^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	8.75^Ref	IPmax (eV)	114^Ref
B (mag)	-	WISE W4 (mag)	8.15^Ref	[O III] lines	No^Ref
V (mag)	-	IRAS 12μm (Jy)	0.35^Ref	He II lines	Yes^Ref
R (mag)	-	IRAS 25μm (Jy)	0.52^Ref	[Fe VII] lines	Yes^Ref
I (mag)	-	IRAS 60μm (Jy)	1.91^Ref	O VI lines	Yes^Ref
BP (mag)	16.65^Ref	IRAS 100μm (Jy)	54.80^Ref
G (mag)	14.99^Ref	AKARI S09 (Jy)	-
RP (mag)	13.66^Ref	AKARI S18 (Jy)	-

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	M3.5^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

Notes

References

Miszalski, B., Mikołajewska, J., 2014, MNRAS, 440, 2, 1410, 2014MNRAS.440.1410M

Last updated: November 5, 2019