eps Aur

Constellation
Auriga

Equatorial coordinates
α = 05 01 58.136
δ = +43 49 23.868

Galactic coordinates
l = 162.7883°
b = 1.1785°

Suspected	1957^Ref
Re-classified	1991^Ref
Type	eclipsing binary with F2Ia primary^Ref

Identifiers

eps Aur	IRAS 04583+4345	GSC2.4.2 NCAB000377	AAVSO 000-BCT-905
SIMBAD * eps Aur	Pan-STARRS -	SAO 39955	VSX 4299
GAIA DR3 205499655242974464	SkyMapper -	WRAY -	GCVS eps Aur
2MASS J05015812+4349241	HIP 23416	Hen -	BD +43 1166
WISE J050158.15+434923.9	TYC 2907-1275-1	ESO -	HD 31964

Symbiotic Catalogs

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

Position

Right ascension (°)	75.4922^Ref	Parallax (mas)	0.988±0.179^Ref	Reddening E(B-V) (mag)	0.89±0.11^Ref ^{, Note}
Declination (°)	43.8233^Ref	Distance (kpc)	1.06^Ref ^{, Note}, 1.06^Ref ^{, Note}
Galactic longitude (°)	162.7883^Ref	Proper motion in α (mas/yr)	0.88±0.21^Ref
Galactic latitude (°)	1.1785^Ref	Proper motion in δ (mas/yr)	-3.07±0.18^Ref

Links

SIMBAD CDS Portal

Notes

Included in the list of stars with combination spectra and related binaries by Gaposchkin (1957). It was later confirmed to be an F0 supergiant with an eclipsing companion and an orbital period of 27.1 years (e.g., Carroll et al., 1991; Ignace et al., 2021, and references therein).

References

Carroll, S. M., Guinan, E. F., McCook, G. P. et al., 1991, ApJ, 367, 278, 1991ApJ...367..278C
Gaposchkin, C. H. P., 1957, Amsterdam, 1, 1957gano.book.....G
Ignace, R., Henson, G., Neilson, H. et al., 2021, AJ, 162, 3, 105, 2021AJ....162..105I