New Online Database of Symbiotic Variables: AL 4

Constellation
Hydrus

Equatorial coordinates
α = 03 23 28.937
δ = -72 43 37.157

Galactic coordinates
l = 289.1094°
b = -40.0628°

Suspected	2013^Ref
Confirmed	-
Symbiotic IR type	S?^Ref
Hot component type	shell-burning?^Ref
Outbursts	-

Identifiers

AL 4	IRAS -	GSC2.4.2 S1IB000194	AAVSO -
SIMBAD AL 4	Pan-STARRS -	SAO -	VSX -
GAIA DR3 4642240866743866880	SkyMapper 032328.91-724337.2	WRAY -	GCVS -
2MASS J03232890-7243371	HIP -	Hen -	BD -
WISE J032328.94-724337.0	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 (°)	50.8706^Ref	Parallax (mas)	-0.062±0.018^Ref	Reddening E(B-V) (mag)	0.04±0.0^Ref ^{, Note}
Declination (°)	-72.7270^Ref	Distance (kpc)	31.63^Ref ^{, Note}, 29.69^Ref ^{, Note}
Galactic longitude (°)	289.1094^Ref	Proper motion in α (mas/yr)	2.02±0.02^Ref
Galactic latitude (°)	-40.0628^Ref	Proper motion in δ (mas/yr)	-0.60±0.02^Ref

Observations

X-Ray	-	IR type	S?^Ref	Radio	-
X-Ray type	-	J (mag)	14.71^Ref	Flickering	-
GALEX FUV (mag)	14.29^Ref	H (mag)	14.47^Ref	Outbursts	-
GALEX NUV (mag)	14.36^Ref	K (mag)	14.40^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	14.05^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	13.78^Ref	Resolved nebula	-
U (mag)	13.66^Ref	WISE W3 (mag)	13.03^Ref	IPmax (eV)	-
B (mag)	14.72^Ref	WISE W4 (mag)	9.20^Ref	[O III] lines	-
V (mag)	14.79^Ref	IRAS 12μm (Jy)	-	He II lines	-
R (mag)	15.16^Ref	IRAS 25μm (Jy)	-	[Fe VII] lines	-
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	-
BP (mag)	14.64^Ref	IRAS 100μm (Jy)	-
G (mag)	14.66^Ref	AKARI S09 (Jy)	-
RP (mag)	14.63^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	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

Classified as a possible symbiotic star by O´Donoghue et al. (2013) based on the presence of H-beta and H-gamma in emission. It is listed as a confirmed symbiotic star in SIMBAD (Wenger et al., 2000). This object is also noted as an emission line object in Andrews & Lindsay (1964) and included in the catalog of blue stars between the Magellanic Clouds (Demers & Irwin, 1991).

References

Andrews, A. D., Lindsay, E. M., 1964, IrAJ, 6, 241, 1964IrAJ....6..241A
Demers, S., Irwin, M. J., 1991, A&AS, 91, 171, 1991A&AS...91..171D
O´Donoghue, D., Kilkenny, D., Koen, C. et al., 2013, MNRAS, 431, 1, 240, 2013MNRAS.431..240O
Wenger, M., Ochsenbein, F., Egret, D. et al., 2000, A&AS, 143, 9, 2000A&AS..143....9W

AL 4