VPHASDR2J175059.8-301247.5

SUSPECTED MILKY WAY

Constellation
Scorpius

Equatorial coordinates
α = 17 50 59.781
δ = -30 12 47.528

Galactic coordinates
l = 359.5094°
b = -1.6603°

Suspected	2019^Ref
Confirmed	-
Symbiotic IR type	S?^Ref
Hot component type	-
Outbursts	-

Identifiers

VPHASDR2J175059.8-301247.5	IRAS -	GSC2.4.2 S8DR406966	AAVSO -
SIMBAD MSX6C G359.5102-01.6611	Pan-STARRS 71742677491094477	SAO -	VSX 903997
GAIA DR3 4056361899741275392	SkyMapper 175059.78-301247.4	WRAY -	GCVS -
2MASS J17505978-3012473	HIP -	Hen -	BD -
WISE J175059.78-301247.3	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 (°)	267.7491^Ref	Parallax (mas)	0.155±0.083^Ref	Reddening E(B-V) (mag)	1.25±0.09^Ref ^{, Note}
Declination (°)	-30.2132^Ref	Distance (kpc)	6.27^Ref ^{, Note}, 6.81^Ref ^{, Note}
Galactic longitude (°)	359.5094^Ref	Proper motion in α (mas/yr)	-3.36±0.09^Ref
Galactic latitude (°)	-1.6603^Ref	Proper motion in δ (mas/yr)	-9.06±0.06^Ref

Observations

X-Ray	No^Ref	IR type	S?^Ref	Radio	-
X-Ray type	-	J (mag)	9.73^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	8.43^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	7.80^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	7.43^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	7.61^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	7.13^Ref	IPmax (eV)	-
B (mag)	-	WISE W4 (mag)	6.29^Ref	[O III] lines	-
V (mag)	16.70^Ref	IRAS 12μm (Jy)	-	He II lines	-
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	-
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	-
BP (mag)	17.84^Ref	IRAS 100μm (Jy)	-
G (mag)	15.06^Ref	AKARI S09 (Jy)	-
RP (mag)	13.49^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	923.4?^Ref	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	Luminosity (L_⊙)	-	Pulsation period (days)	-
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

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

Links

SIMBAD CDS Portal

Notes

The object, initially reported as an LPV by Mowlavi et al. (2018), and previously identified as an H-alpha emission star (Kohoutek & Wehmeyer, 2003), has been classified as a possible symbiotic star based on infrared data in the study by Akras et al. (2019).

References

Akras, S., Leal-Ferreira, M. L., Guzman-Ramirez, L. et al., 2019, MNRAS, 483, 4, 5077, 2019MNRAS.483.5077A
Kohoutek, L., Wehmeyer, R., 2003, AN, 324, 5, 437, 2003AN....324..437K
Mowlavi, N., Lecoeur-Taïbi, I., Lebzelter, T. et al., 2018, A&A, 618, A58, 2018A&A...618A..58M

Last updated: May 3, 2022