LAMOST J122804.90-014825.7

CONFIRMED MILKY WAY

Constellation
Virgo

Equatorial coordinates
α = 12 28 04.886
δ = -01 48 25.563

Galactic coordinates
l = 291.0062°
b = 60.5227°

Suspected	2015^Ref
Confirmed	2015^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

LAMOST J122804.90-014825.7	IRAS -	GSC2.4.2 S6CS000015	AAVSO -
SIMBAD LAMOST J122804.90-014825.7	Pan-STARRS 105831870204091895	SAO -	VSX -
GAIA DR3 3693971976811545856	SkyMapper 122804.89-014825.5	WRAY -	GCVS -
2MASS J12280489-0148256	HIP -	Hen -	BD -
WISE J122804.89-014825.5	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	-
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	LAMOSTJ12280490-014825.7 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	187.0204^Ref	Parallax (mas)	0.103±0.020^Ref	Reddening E(B-V) (mag)	0.02±0.0^Ref ^{, Note}
Declination (°)	-1.8071^Ref	Distance (kpc)	7.5196^Ref 8.05^Ref ^{, Note}, 8.07^Ref ^{, Note}
Galactic longitude (°)	291.0062^Ref	Proper motion in α (mas/yr)	-3.53±0.02^Ref
Galactic latitude (°)	60.5227^Ref	Proper motion in δ (mas/yr)	1.26±0.02^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	-
X-Ray type	-	J (mag)	10.03^Ref	Flickering	No^Ref
GALEX FUV (mag)	16.14^Ref	H (mag)	9.18^Ref	Outbursts	-
GALEX NUV (mag)	16.43^Ref	K (mag)	9.03^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	8.92^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	8.95^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	8.72^Ref	IPmax (eV)	99^Ref
B (mag)	14.04^Ref	WISE W4 (mag)	8.39^Ref	[O III] lines	No^Ref
V (mag)	12.64^Ref	IRAS 12μm (Jy)	-	He II lines	Yes^Ref
R (mag)	12.27^Ref	IRAS 25μm (Jy)	-	[Fe VII] lines	Yes^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	12.84^Ref	IRAS 100μm (Jy)	-
G (mag)	12.05^Ref	AKARI S09 (Jy)	-
RP (mag)	11.18^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	-	γ velocity (km/h)	368.99±0.62^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	K3^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_⊙)	-
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal

Notes

This star appears to be a halo symbiotic star (Li et al., 2015).

References

Li, J., Mikołajewska, J., Chen, X. et al., 2015, RAA, 15, 8, 1332, 2015RAA....15.1332L
Merc, J., Beck, P. G., Mathur, S. et al., 2023, arXiv, arXiv:2312.16126, 2023arXiv231216126M

Last updated: January 13, 2024