KT Eri

Constellation
Eridanus

Equatorial coordinates
α = 04 47 54.208
δ = -10 10 43.139

Galactic coordinates
l = 207.9863°
b = -32.0202°

Suspected	2012^Ref
Re-classified	2014^Ref
Type	CV within triple system?^Ref

Identifiers

KT Eri	IRAS -	GSC2.4.2 S2B7000318	AAVSO 000-BJR-847
SIMBAD KT Eri	Pan-STARRS 95780719758286017	SAO -	VSX 238721
GAIA DR3 3184664584368981760	SkyMapper 044754.20-101043.1	WRAY -	GCVS KT Eri
2MASS J04475419-1010429	HIP -	Hen -	BD -
WISE J044754.20-101042.7	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 (°)	71.9759^Ref	Parallax (mas)	0.196±0.025^Ref	Reddening E(B-V) (mag)	0.08±0.0^Ref ^{, Note}
Declination (°)	-10.1786^Ref	Distance (kpc)	4.06^Ref ^{, Note}, 3.90^Ref ^{, Note}
Galactic longitude (°)	207.9863^Ref	Proper motion in α (mas/yr)	6.47±0.02^Ref
Galactic latitude (°)	-32.0202^Ref	Proper motion in δ (mas/yr)	-11.07±0.02^Ref

Links

SIMBAD CDS Portal

Notes

The nova outburst of KT Eri was discovered in 2009 (Itagaki, 2009). A possible analogy to symbiotic stars was suggested by Jurdana-Šepić et al. (2012), who detected a period of 737 days in its light curve. However, Munari & Dallaporta (2014) contradicted the symbiotic nature of the object, arguing that the star is too faint in the infrared to contain a Roche-lobe filling giant. They proposed an alternative classification of a CV in a triple system for KT Eri.

References

Itagaki, K., 2009, CBET, 2050, 1, 2009CBET.2050....1I
Jurdana-Šepić, R., Ribeiro, V. A. R. M., Darnley, M. J. et al., 2012, A&A, 537, A34, 2012A&A...537A..34J
Munari, U., Dallaporta, S., 2014, NewA, 27, 25, 2014NewA...27...25M