Hen 3-828

CONFIRMED MILKY WAY

Constellation
Crux

Equatorial coordinates
α = 12 50 58.073
δ = -57 50 46.512

Galactic coordinates
l = 302.8691°
b = 5.0254°

Suspected	1973^Ref
Confirmed	1978^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

Hen 3-828	IRAS -	GSC2.4.2 S7P2000183	AAVSO 000-BJT-820
SIMBAD WRAY 15-1022	Pan-STARRS -	SAO -	VSX 241013
GAIA DR3 6060457617846295168	SkyMapper 125058.11-575046.5	WRAY 15-1022	GCVS -
2MASS J12505809-5750464	HIP -	Hen 3-828	BD -
WISE J125058.07-575046.5	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	Hen 828 (Conf.)	Belzcyński et al. (2001)	Hen 3-828 (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	Hen 828 (Conf.)	Akras et al. (2019)	Hen 3-828 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	VDS 33 (Conf.)

Position

Right ascension (°)	192.7420^Ref	Parallax (mas)	0.179±0.029^Ref	Reddening E(B-V) (mag)	0.37±0.02^Ref ^{, Note}
Declination (°)	-57.8463^Ref	Distance (kpc)	4.3±0.4^Ref 5.42^Ref ^{, Note}, 5.19^Ref ^{, Note}
Galactic longitude (°)	302.8691^Ref	Proper motion in α (mas/yr)	-5.64±0.02^Ref
Galactic latitude (°)	5.0254^Ref	Proper motion in δ (mas/yr)	-1.43±0.03^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	No^Ref
X-Ray type	-	J (mag)	8.54^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	7.53^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	7.10^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	6.97^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	7.09^Ref	Resolved nebula	No^Ref
U (mag)	-	WISE W3 (mag)	6.74^Ref	IPmax (eV)	99^Ref
B (mag)	14.10^Ref	WISE W4 (mag)	6.46^Ref	[O III] lines	Yes^Ref
V (mag)	13.43^Ref	IRAS 12μm (Jy)	-	He II lines	Yes^Ref
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	Yes^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	13.96^Ref	IRAS 100μm (Jy)	-
G (mag)	12.63^Ref	AKARI S09 (Jy)	0.11^Ref
RP (mag)	11.35^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	660.5±4.5^Ref	γ velocity (km/h)	-14.87±0.31^Ref	Size of giant’s orbit (AU)	0.48^Ref
Eccentricity	0±nan^Ref	RV of giant (km/h)	7.92±0.55^Ref	Separation (AU)	-
Inclination (°)	-	Inferior conj. of giant (JD)	2453226.4	Mass function	0.034^Ref
Eclipses	-			Mass ratio	2.5^Ref
Orbital ephemeris	-

Cool component

Spectral type	M2.9 III^Ref, M6 III^Ref	Mass (M_⊙)	1.5^Ref	Pulsation	-
Eff. temperature (K)	3300^Ref	Radius (R_⊙)	119±8^Ref	Type	-
IR type	S^Ref	Luminosity (L_⊙)	1505±272^Ref	Pulsation period (days)	-
Metallicity [Fe/H]	0.03±0.09^Ref			Pulsation ephemeris	-

Hot component

Type/Spectral type	-	Mass (M_⊙)	0.6^Ref	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

References

Allen, D. A., 1978, MNRAS, 184, 601, 1978MNRAS.184..601A
Fekel, F. C., Hinkle, K. H., Joyce, R. R. et al., 2017, AJ, 153, 1, 35, 2017AJ....153...35F
Gałan, C., Mikołajewska, J., Hinkle, K. H. et al., 2016, MNRAS, 455, 2, 1282, 2016MNRAS.455.1282G
Gutiérrez-Moreno, A., Moreno, H., Costa, E., 1999, PASP, 111, 759, 571, 1999PASP..111..571G
Mürset, U., Schmid, H. M., 1999, A&AS, 137, 473, 1999A&AS..137..473M
Sanduleak, N., Stephenson, C. B., 1973, ApJ, 185, 899, 1973ApJ...185..899S

Last updated: April 15, 2022