GaSS 1-25

POSSIBLE MILKY WAY

Constellation
Ophiucus

Equatorial coordinates
α = 17 18 59.658
δ = -17 47 37.905

Galactic coordinates
l = 6.1309°
b = 11.1439°

Suspected	2021^Ref
Confirmed	-
Symbiotic IR type	S?^Ref
Hot component type	accreting-only?^Ref
Outbursts	-

Identifiers

GaSS 1-25	IRAS -	GSC2.4.2 S8KY000195	AAVSO -
SIMBAD Gaia DR3 4134939361510306304	Pan-STARRS 86642597487997651	SAO -	VSX 778733
GAIA DR3 4134939361510306304	SkyMapper 171859.65-174737.7	WRAY -	GCVS -
2MASS J17185966-1747375	HIP -	Hen -	BD -
WISE J171859.66-174737.7	TYC -	ESO -	HD -

Symbiotic Catalogs

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

Position

Right ascension (°)	259.7486^Ref	Parallax (mas)	0.231±0.018^Ref	Reddening E(B-V) (mag)	0.23±0.0^Ref ^{, Note}
Declination (°)	-17.7939^Ref	Distance (kpc)	4.3^Ref 3.61^Ref ^{, Note}, 3.50^Ref ^{, Note}
Galactic longitude (°)	6.1309^Ref	Proper motion in α (mas/yr)	-5.10±0.02^Ref
Galactic latitude (°)	11.1439^Ref	Proper motion in δ (mas/yr)	-25.09±0.01^Ref

Observations

X-Ray	-	IR type	S?^Ref	Radio	-
X-Ray type	-	J (mag)	8.27^Ref	Flickering	Yes^Ref
GALEX FUV (mag)	-	H (mag)	7.37^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	7.16^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	7.00^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	7.00^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	6.87^Ref	IPmax (eV)	13.6^Ref
B (mag)	13.45^Ref	WISE W4 (mag)	6.78^Ref	[O III] lines	No^Ref
V (mag)	11.56^Ref	IRAS 12μm (Jy)	-	He II lines	No^Ref
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	11.87^Ref	IRAS 100μm (Jy)	-
G (mag)	10.78^Ref	AKARI S09 (Jy)	0.12^Ref
RP (mag)	9.76^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	-	γ velocity (km/h)	-85.80±0.59^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	-

Cool component

Spectral type	M0^Ref	Mass (M_⊙)	-	Pulsation	Yes?^Ref
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	SR^Ref
IR type	S?^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	77.45^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

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

Links

SIMBAD CDS Portal

Notes

Candidate for the accreting-only symbiotic star selected from the GALAH high-resolution spectroscopic survey (Munari et al., 2021).

References

Munari, U., Traven, G., Masetti, N. et al., 2021, MNRAS, 505, 4, 6121, 2021MNRAS.505.6121M

Last updated: August 21, 2021