New Online Database of Symbiotic Variables: 2MASS J16422739-4133105

Constellation
Scorpius

Equatorial coordinates
α = 16 42 27.385
δ = -41 33 10.630

Galactic coordinates
l = 342.2640°
b = 3.0318°

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

Identifiers

2MASS J16422739-4133105	IRAS 16389-4127	GSC2.4.2 S8VE007610	AAVSO -
SIMBAD 2MASS J16422739-4133105	Pan-STARRS -	SAO -	VSX 450178
GAIA DR3 5968218384802364032	SkyMapper 164227.39-413310.5	WRAY -	GCVS -
2MASS J16422739-4133105	HIP -	Hen -	BD -
WISE J164227.39-413310.5	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	-
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	2MASSJ16422739-4133105 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	250.6141^Ref	Parallax (mas)	0.003±0.073^Ref	Reddening E(B-V) (mag)	1.43±0.09^Ref ^{, Note}
Declination (°)	-41.5530^Ref	Distance (kpc)	7.87^Ref ^{, Note}, 7.83^Ref ^{, Note}
Galactic longitude (°)	342.2640^Ref	Proper motion in α (mas/yr)	-4.42±0.11^Ref
Galactic latitude (°)	3.0318^Ref	Proper motion in δ (mas/yr)	-3.77±0.09^Ref

Observations

X-Ray	-	IR type	S^Ref, D^Ref	Radio	-
X-Ray type	-	J (mag)	10.33^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	8.96^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	7.66^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	6.09^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	4.94^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	3.99^Ref	IPmax (eV)	114^Ref
B (mag)	-	WISE W4 (mag)	3.30^Ref	[O III] lines	Yes^Ref
V (mag)	-	IRAS 12μm (Jy)	1.69^Ref	He II lines	Yes^Ref
R (mag)	-	IRAS 25μm (Jy)	0.76^Ref	[Fe VII] lines	Yes^Ref
I (mag)	-	IRAS 60μm (Jy)	3.85^Ref	O VI lines	Yes^Ref
BP (mag)	17.13^Ref	IRAS 100μm (Jy)	30.40^Ref
G (mag)	16.40^Ref	AKARI S09 (Jy)	0.95^Ref
RP (mag)	15.35^Ref	AKARI S18 (Jy)	0.57^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	-	Mass (M_⊙)	-	Pulsation	-
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	-
IR type	S^Ref, 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

The red giant in this system has not been detected, likely obscured by dust and therefore not visible at optical wavelengths, as indicated by Miszalski & Mikołajewska (2014).

References

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

2MASS J16422739-4133105