New Online Database of Symbiotic Variables: Hen 3-1342

Constellation
Ophiucus

Equatorial coordinates
α = 17 08 54.966
δ = -23 23 36.546

Galactic coordinates
l = 0.0776°
b = 9.9208°

Suspected	1973^Ref
Confirmed	1978^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

Hen 3-1342	IRAS -	GSC2.4.2 S8KG043786	AAVSO 000-BJT-985
SIMBAD Hen 3-1342	Pan-STARRS 79922572290478191	SAO -	VSX 239255
GAIA DR3 4113660822209255168	SkyMapper 170854.96-232336.4	WRAY -	GCVS -
2MASS J17085497-2323364	HIP -	Hen 3-1342	BD -
WISE J170854.96-232336.5	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	Hen 1342 (Conf.)	Belzcyński et al. (2001)	Hen 3-1342 (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	Hen 1342 (Conf.)	Akras et al. (2019)	Hen 3-1342 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	VDS 70 (Conf.)

Position

Right ascension (°)	257.2290^Ref	Parallax (mas)	0.144±0.022^Ref	Reddening E(B-V) (mag)	0.43±0.04^Ref ^{, Note}
Declination (°)	-23.3935^Ref	Distance (kpc)	6.53^Ref ^{, Note}, 6.16^Ref ^{, Note}
Galactic longitude (°)	0.0776^Ref	Proper motion in α (mas/yr)	-3.96±0.02^Ref
Galactic latitude (°)	9.9208^Ref	Proper motion in δ (mas/yr)	-2.58±0.02^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	No^Ref
X-Ray type	-	J (mag)	9.61^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	8.69^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	8.35^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	8.22^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	8.24^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	7.84^Ref	IPmax (eV)	114^Ref
B (mag)	15.14^Ref	WISE W4 (mag)	7.22^Ref	[O III] lines	Yes^Ref
V (mag)	13.32^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	Yes^Ref
BP (mag)	13.55^Ref	IRAS 100μm (Jy)	-
G (mag)	12.40^Ref	AKARI S09 (Jy)	-
RP (mag)	11.34^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	562±28^Ref	γ velocity (km/h)	-232.78±2.67^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) = 2452287 + 562±28 x E^Ref

Cool component

Spectral type	K5-M0 III^Ref, M0 III^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	3921^Ref	Radius (R_⊙)	-	Type	-
IR type	S^Ref	Luminosity (L_⊙)	2808^Ref	Pulsation period (days)	44±1^Ref
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

Allen (1978) observed a continuum resembling that of a G star, alongside the presence of He II and O VI lines. Later, Medina Tanco & Steiner (1995) classified the cool component of the system as K5-M0.

References

Allen, D. A., 1978, MNRAS, 184, 601, 1978MNRAS.184..601A
Medina Tanco, G. A., Steiner, J. E., 1995, AJ, 109, 1770, 1995AJ....109.1770M
Mürset, U., Schmid, H. M., 1999, A&AS, 137, 473, 1999A&AS..137..473M
Sanduleak, N., Stephenson, C. B., 1973, ApJ, 185, 899, 1973ApJ...185..899S

Hen 3-1342