New Online Database of Symbiotic Variables: GH Gem

Constellation
Gemini

Equatorial coordinates
α = 07 04 12.771
δ = +12 03 34.184

Galactic coordinates
l = 203.5630°
b = 8.2653°

Suspected	1986^Ref
Confirmed	2007^Ref
Symbiotic IR type	D'^Ref
Hot component type	accreting-only^Ref
Outbursts	-

Identifiers

GH Gem	IRAS -	GSC2.4.2 N8NA000573	AAVSO 000-BBM-369
SIMBAD V* GH Gem	Pan-STARRS 122471060533262038	SAO -	VSX 14485
GAIA DR3 3160625132721733888	SkyMapper -	WRAY -	GCVS GH Gem
2MASS J07041277+1203342	HIP -	Hen -	BD -
WISE J070412.76+120334.1	TYC -	ESO -	HD -

Symbiotic Catalogs

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

Position

Right ascension (°)	106.0532^Ref	Parallax (mas)	1.016±0.017^Ref	Reddening E(B-V) (mag)	0.07±0.0^Ref ^{, Note}
Declination (°)	12.0595^Ref	Distance (kpc)	0.96^Ref ^{, Note}, 0.97^Ref ^{, Note}
Galactic longitude (°)	203.5630^Ref	Proper motion in α (mas/yr)	-2.87±0.02^Ref
Galactic latitude (°)	8.2653^Ref	Proper motion in δ (mas/yr)	-3.36±0.02^Ref

Observations

X-Ray	No^Ref	IR type	D'^Ref	Radio	-
X-Ray type	-	J (mag)	12.07^Ref	Flickering	No^Ref
GALEX FUV (mag)	-	H (mag)	11.32^Ref	Outbursts	-
GALEX NUV (mag)	19.65^Ref	K (mag)	10.69^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	9.10^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	8.55^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	6.36^Ref	IPmax (eV)	13.6^Ref
B (mag)	13.62^Ref	WISE W4 (mag)	4.75^Ref	[O III] lines	No^Ref
V (mag)	12.53^Ref	IRAS 12μm (Jy)	-	He II lines	No^Ref
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	13.47^Ref	IRAS 100μm (Jy)	-
G (mag)	12.87^Ref	AKARI S09 (Jy)	0.10^Ref
RP (mag)	12.08^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	-	γ velocity (km/h)	4.69±22.33^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	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	accreting-only^Ref	Radius (R_⊙)	-	Accretion disk	-
Eff. temperature (K)	-	Luminosity (L_⊙)	-
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal ARAS Database

Notes

Included in the list of suspected objects by Kenyon (1986), Munari et al. (2007) obtained a spectrum showing a K3 giant and low ionization emission lines. B data are modulated with a period of 72.5 days, while V shows modulation with a period of 331 days.

References

Kenyon, S. J., 1986, Cambridge: University Press, 1, 1986syst.book.....K
Merc, J., Beck, P. G., Mathur, S. et al., 2023, arXiv, arXiv:2312.16126, 2023arXiv231216126M
Munari, U., Siviero, A., Gualdoni, C. et al., 2007, BaltA, 16, 43, 2007BaltA..16...43M

GH Gem