The star appears 46.0' (0.7668°)
ENE of
Iota Carinae at the heart of the asterism and constellation which is skewed in having bulk of the stars away from the eastern,
Canopus prow of the ship and close to the imagined sails of the ship,
Vela.
Variability
V357 Carinae is a probable
variable star; its brightness varies from magnitude +3.41 to +3.44 with a period of 6.74 days, which is its
orbital period. It was classified as an
eclipsing binary in
Gaposchkin's original catalogue of variable stars,[10] although the variability was often considered doubtful.[3] It is now thought most likely to be a very shallow eclipsing binary.[2]
System
V357 Carinae is an astrometric binary, meaning its motion in the sky implies orbital motion about an invisible companion. It is also a single-lined spectroscopic binary, and possibly a triple system.[11] The two closest components orbit each other in 6.74 days, while the observed astrometric motion is much longer.[6]
^
abSamus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1: B/gcvs.
Bibcode:
2009yCat....102025S.
^Evans, D. S. (1967). "The Revision of the General Catalogue of Radial Velocities". Determination of Radial Velocities and Their Applications. 30: 57.
Bibcode:
1967IAUS...30...57E.
^Kukarkin, B. V.; Kholopov, P. N.; Fedorovich, V. P.; Kireyeva, N. N.; Kukarkina, N. P.; Medvedeva, G. I.; Perova, N. B. (1977). "62nd Name-List of Variable Stars". Information Bulletin on Variable Stars. 1248: 1.
Bibcode:
1977IBVS.1248....1K.