StHA 32

CONFIRMED MILKY WAY

Constellation
Eridanus

Equatorial coordinates
α = 04 37 45.637
δ = -01 19 11.963

Galactic coordinates
l = 197.4855°
b = -30.0361°

Suspected	1988^Ref
Confirmed	1988^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	Yes^Ref - Z And^Ref

Identifiers

StHA 32	IRAS -	GSC2.4.2 S1MR000383	AAVSO 000-BJT-487
SIMBAD EM* StHA 32	Pan-STARRS 106410694401536433	SAO -	VSX 239239
GAIA DR3 3229441606998725888	SkyMapper 043745.63-011911.8	WRAY -	GCVS -
2MASS J04374563-0119118	HIP -	Hen -	BD -
WISE J043745.63-011911.8	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	S32 (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	StHA 32 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	69.4402^Ref	Parallax (mas)	0.075±0.016^Ref	Reddening E(B-V) (mag)	0.02±0.0^Ref ^{, Note}
Declination (°)	-1.3200^Ref	Distance (kpc)	10.22^Ref ^{, Note}, 8.55^Ref ^{, Note}
Galactic longitude (°)	197.4855^Ref	Proper motion in α (mas/yr)	5.21±0.02^Ref
Galactic latitude (°)	-30.0361^Ref	Proper motion in δ (mas/yr)	-4.21±0.02^Ref

Observations

X-Ray	Yes^Ref	IR type	S^Ref	Radio	-
X-Ray type	α^Ref	J (mag)	10.18^Ref	Flickering	No^Ref
GALEX FUV (mag)	16.10^Ref	H (mag)	9.48^Ref	Outbursts	Yes^Ref
GALEX NUV (mag)	16.65^Ref	K (mag)	9.29^Ref	Outburst type	Z And^Ref
IUE	No^Ref	WISE W1 (mag)	9.15^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	9.18^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	8.71^Ref	IPmax (eV)	114^Ref
B (mag)	14.32^Ref	WISE W4 (mag)	7.95^Ref	[O III] lines	No^Ref
V (mag)	12.77^Ref	IRAS 12μm (Jy)	-	He II lines	Yes^Ref
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	Yes^Ref
BP (mag)	13.03^Ref	IRAS 100μm (Jy)	-
G (mag)	12.29^Ref	AKARI S09 (Jy)	-
RP (mag)	11.46^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	612^Ref, 618.47±10.6^Ref	γ velocity (km/h)	321.7±1^Ref, 326.46±1.98^Ref	Size of giant’s orbit (AU)	-
Eccentricity	0.12±0.03^Ref	RV of giant (km/h)	-	Separation (AU)	-
Inclination (°)	-	Inferior conj. of giant (JD)	-	Mass function	-
Eclipses	-			Mass ratio	-
Orbital ephemeris	-

Cool component

Spectral type	C1.1 CH5^Ref	Mass (M_⊙)	-	Pulsation	-
Eff. temperature (K)	4300^Ref	Radius (R_⊙)	-	Type	-
IR type	S^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	-
Metallicity [Fe/H]	-1.38^Ref			Pulsation ephemeris	-

Hot component

Type/Spectral type	WD^Ref	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	-	Accretion disk	-
Eff. temperature (K)	100000^Ref	Luminosity (L_⊙)	-
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal ARAS Database

Notes

Yellow symbiotic star, carbon-rich (Downes & Keyes, 1988), exhibits super-soft X-ray emission (Luna et al., 2013). O VI lines have been detected (Downes & Keyes, 1988). The star experienced an outburst, observed in 2018 (Munari et al., 2018). A potential outburst was previously suggested in the catalog of Belczyński et al. (2000) with reference to Kafatos et al. (1983). However, that paper did not address StHa 32.

References

Beck, P. G., Grossmann, D. H., Steinwender, L. et al., 2023, arXiv, arXiv:2307.10812, 2023arXiv230710812B
Belczyński, K., Mikołajewska, J., Munari, U. et al., 2000, A&AS, 146, 407, 2000A&AS..146..407B
Downes, R. A., Keyes, C. D., 1988, AJ, 96, 777, 1988AJ.....96..777D
Kafatos, M., Michalitsianos, A. G., Allen, D. A. et al., 1983, ApJ, 275, 584, 1983ApJ...275..584K
Luna, G. J. M., Sokoloski, J. L., Mukai, K. et al., 2013, A&A, 559, A6, 2013A&A...559A...6L
Merc, J., Beck, P. G., Mathur, S. et al., 2023, arXiv, arXiv:2312.16126, 2023arXiv231216126M
Munari, U., Dallaporta, S., Graziani, M. et al., 2018, ATel, 11304, 1, 2018ATel11304....1M
Pereira, C. B., Baella, N. O., Drake, N. A. et al., 2017, ApJ, 841, 1, 50, 2017ApJ...841...50P
Schmid, H. M., Nussbaumer, H., 1993, A&A, 268, 159, 1993A&A...268..159S
Schmid, H. M., 1994, A&A, 284, 156, 1994A&A...284..156S

Last updated: January 12, 2024