· · · ·


Dnoces, Iota Ursae Majoris, 9 Ursae Majoris

Proper NamesTalitha, Dnoces
Bayer DesignationIota Ursae Majoris
Flamsteed Number9 Ursae Majoris
HR (BSC)3569
ConstellationUrsa Major
Right Ascension8h 59m 12s (A), 8h 59m 13s (BC)
Declination+48° 2' 31" (A), +48° 2' 34" (BC)
Distance47 light years
15 parsecs
MagnitudeApparent: +3.14 (A), +8.90 (BC)
Absolute: +2.33 (A), +8.09 (BC)
Spectral ClassA7IV white subgiant (A)
M1V red dwarf (BC)
Optimum VisibilityFebruary (Usually visible from northern latitudes)
NotesTalitha is a complex multiple system containing at least four stars. The primary is the white subgiant Talitha A, a spectroscopic binary with a close companion star. Orbiting this at a distance of some 130 AU is another binary system, Talitha BC, which consists of a a pair of red dwarfs following a mutual orbit at a distance of about ten AU from one another.

Imagery provided by Aladin sky atlas


Related Entries