WRAY 16-294

SUSPECTED MILKY WAY

Constellation
Ophiucus

Equatorial coordinates
α = 17 39 13.804
δ = -25 38 05.167

Galactic coordinates
l = 2.0609°
b = 2.9445°

Suspected	1997^Ref
Confirmed	-
Symbiotic IR type	S?^Ref
Hot component type	shell-burning?^Ref
Outbursts	-

Identifiers

WRAY 16-294	IRAS -	GSC2.4.2 S8E3002896	AAVSO 000-BJT-863
SIMBAD WRAY 16-294	Pan-STARRS 77232648075268606	SAO -	VSX 241099
GAIA DR3 4061952680197028224	SkyMapper 173913.79-253805.3	WRAY 16-294	GCVS -
2MASS J17391381-2538050	HIP -	Hen 3-1447	BD -
WISE J173913.80-253804.8	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	WRAY 16-294 (Susp.)
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	WRAY 16-294 (Susp.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	264.8075^Ref	Parallax (mas)	0.050±0.030^Ref	Reddening E(B-V) (mag)	1.75±0.07^Ref ^{, Note}
Declination (°)	-25.6348^Ref	Distance (kpc)	8.31^Ref ^{, Note}, 6.87^Ref ^{, Note}
Galactic longitude (°)	2.0609^Ref	Proper motion in α (mas/yr)	-3.27±0.04^Ref
Galactic latitude (°)	2.9445^Ref	Proper motion in δ (mas/yr)	-6.52±0.02^Ref

Observations

X-Ray	-	IR type	S?^Ref	Radio	-
X-Ray type	-	J (mag)	10.15^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	9.16^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	8.59^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	8.66^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	8.63^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	8.32^Ref	IPmax (eV)	35.1^Ref
B (mag)	-	WISE W4 (mag)	8.08^Ref	[O III] lines	Yes^Ref
V (mag)	14.50^Ref	IRAS 12μm (Jy)	-	He II lines	No^Ref
R (mag)	14.71^Ref	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	12.44^Ref	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	17.01^Ref	IRAS 100μm (Jy)	-
G (mag)	14.98^Ref	AKARI S09 (Jy)	-
RP (mag)	13.63^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	K5^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_⊙)	100^Ref
Lower limit (K)	24000^Ref
Upper limit (K)	55000^Ref

Links

SIMBAD CDS Portal

Notes

Symbiotic nature is supported by the analysis of Akras et al. (2019).

References

Akras, S., Leal-Ferreira, M. L., Guzman-Ramirez, L. et al., 2019, MNRAS, 483, 4, 5077, 2019MNRAS.483.5077A
Mikołajewska, J., Acker, A., Stenholm, B., 1997, A&A, 327, 191, 1997A&A...327..191M

Last updated: May 3, 2022