VPHASDR2J184303.6-050026.4

SUSPECTED MILKY WAY

Constellation
Scutum

Equatorial coordinates
α = 18 43 03.572
δ = -05 00 26.419

Galactic coordinates
l = 27.5217°
b = -0.4237°

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

Identifiers

VPHASDR2J184303.6-050026.4	IRAS -	GSC2.4.2 S9NC067689	AAVSO -
SIMBAD ATO J280.7648-05.0073	Pan-STARRS 101992807648751622	SAO -	VSX 2224289
GAIA DR3 4256621381306044032	SkyMapper -	WRAY -	GCVS -
2MASS J18430357-0500263	HIP -	Hen -	BD -
WISE J184303.57-050026.4	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 (°)	280.7649^Ref	Parallax (mas)	0.255±0.063^Ref	Reddening E(B-V) (mag)	7.66±1.18^Ref ^{, Note}
Declination (°)	-5.0073^Ref	Distance (kpc)	3.42^Ref ^{, Note}, 3.43^Ref ^{, Note}
Galactic longitude (°)	27.5217^Ref	Proper motion in α (mas/yr)	-1.60±0.07^Ref
Galactic latitude (°)	-0.4237^Ref	Proper motion in δ (mas/yr)	-3.03±0.07^Ref

Observations

X-Ray	No^Ref	IR type	D?^Ref	Radio	-
X-Ray type	-	J (mag)	13.02^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	11.52^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	10.27^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	8.45^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	7.61^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	5.86^Ref	IPmax (eV)	-
B (mag)	-	WISE W4 (mag)	4.58^Ref	[O III] lines	-
V (mag)	-	IRAS 12μm (Jy)	-	He II lines	-
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	-
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	-
BP (mag)	17.53^Ref	IRAS 100μm (Jy)	-
G (mag)	16.29^Ref	AKARI S09 (Jy)	0.23^Ref
RP (mag)	15.10^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	-	Mass (M_⊙)	-	Pulsation	-
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	-
IR type	D?^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

Classified as a possible symbiotic star based on infrared data by Akras et al. (2019), this object was previously identified as an AGB star candidate (Robitaille et al., 2008) and as an LPV with a period of 597 days (Heinze et al., 2018).

References

Akras, S., Leal-Ferreira, M. L., Guzman-Ramirez, L. et al., 2019, MNRAS, 483, 4, 5077, 2019MNRAS.483.5077A
Heinze, A. N., Tonry, J. L., Denneau, L. et al., 2018, AJ, 156, 5, 241, 2018AJ....156..241H
Robitaille, T. P., Meade, M. R., Babler, B. L. et al., 2008, AJ, 136, 6, 2413, 2008AJ....136.2413R

Last updated: May 3, 2022