V957 Cen

SUSPECTED MILKY WAY

Constellation
Centaurus

Equatorial coordinates
α = 13 14 36.357
δ = -31 25 10.539

Galactic coordinates
l = 308.7099°
b = 31.1921°

Suspected	2002^Ref
Confirmed	-
Symbiotic IR type	S?^Ref
Hot component type	shell-burning?^Ref
Outbursts	-

Identifiers

V957 Cen	IRAS F13118-3109	GSC2.4.2 S6LI000212	AAVSO 000-BDL-099
SIMBAD V* V957 Cen	Pan-STARRS -	SAO -	VSX 8254
GAIA DR3 6181550823438486016	SkyMapper 131436.37-312510.5	WRAY -	GCVS V0957 Cen
2MASS J13143637-3125105	HIP 64613	Hen 4-134	BD -
WISE J131436.35-312510.5	TYC 7263-1420-1	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	-
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	Hen 4-134 (Susp.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	198.6515^Ref	Parallax (mas)	0.403±0.045^Ref	Reddening E(B-V) (mag)	0.05±0.0^Ref ^{, Note}
Declination (°)	-31.4196^Ref	Distance (kpc)	2.27^Ref ^{, Note}, 2.09^Ref ^{, Note}
Galactic longitude (°)	308.7099^Ref	Proper motion in α (mas/yr)	-9.80±0.03^Ref
Galactic latitude (°)	31.1921^Ref	Proper motion in δ (mas/yr)	5.71±0.03^Ref

Observations

X-Ray	-	IR type	S?^Ref	Radio	-
X-Ray type	-	J (mag)	7.33^Ref	Flickering	-
GALEX FUV (mag)	20.51^Ref	H (mag)	6.53^Ref	Outbursts	-
GALEX NUV (mag)	18.75^Ref	K (mag)	6.17^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	6.00^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	5.99^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	5.64^Ref	IPmax (eV)	-
B (mag)	13.52^Ref	WISE W4 (mag)	5.51^Ref	[O III] lines	-
V (mag)	11.77^Ref	IRAS 12μm (Jy)	0.24^Ref	He II lines	-
R (mag)	-	IRAS 25μm (Jy)	0.13^Ref	[Fe VII] lines	-
I (mag)	-	IRAS 60μm (Jy)	0.13^Ref	O VI lines	-
BP (mag)	11.80^Ref	IRAS 100μm (Jy)	0.63^Ref
G (mag)	10.26^Ref	AKARI S09 (Jy)	0.34^Ref
RP (mag)	9.07^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	-	γ velocity (km/h)	52.92±0.87^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	S3.3^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	3537^Ref	Radius (R_⊙)	-	Type	SR^Ref
IR type	S?^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	54.54546^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

Notes

Symbiotic status 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
McDonald, I., Zijlstra, A. A., Boyer, M. L., 2012, MNRAS, 427, 1, 343, 2012MNRAS.427..343M
Stephenson, C. B., 1984, PW&SO, 1, 1984PW&SO...3....1S
van Eck, S., Jorissen, A., 2002, A&A, 396, 599, 2002A&A...396..599V

Last updated: August 21, 2021