Top Qs
Timeline
Chat
Perspective

Nu3 Canis Majoris

Star in the constellation Canis Major From Wikipedia, the free encyclopedia

Remove ads

Nu3 Canis Majoris is a binary star[4] system in the southern constellation of Canis Major. Its name is a Bayer designation that is Latinized from ν3 Canis Majoris, and abbreviated Nu3 CMa or ν3 CMa. The star system, appearing as one star, is deemed visible to the naked eye with its combined apparent visual magnitude of 4.41.[3] Based upon an annual parallax shift of 6.79 mas as seen from Earth,[2] this system is approximately 481 light-years (147 pc) distant from the Sun.

Quick Facts Constellation, Right ascension ...
Remove ads

Characteristics

The primary member, component A, is an evolved, orange-hued giant/bright giant hybrid with an apparent magnitude of +4.63[4] and a stellar classification of K0 II-III.[6] It is most likely (96% chance) on the horizontal branch,[5] which would indicate it is generated energy through helium fusion at its core. The star has a moderate level of surface activity with a magnetic field strength of 2.2±0.4 G and is a source of X-ray emission with a luminosity of 624×1027 erg s−1.[6]

This giant has an estimated 3.4[5] times the mass of the Sun and has expanded to 33[6] times the Sun's radius. It is radiating 398 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,510 K.[6] The star is spinning with the leisurely period of 183 days.[6] Its companion, component B has been observed at 1.040 arcseconds distant along a position angle of 2.9° as of 2002,[10] and has an apparent magnitude of +8.56.[4]

Remove ads

References

Loading related searches...

Wikiwand - on

Seamless Wikipedia browsing. On steroids.

Remove ads