| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Canis Major |
| Right ascension | 06h 55m 02.73805s[1] |
| Declination | −20° 24′ 17.5527″[1] |
| Apparent magnitude (V) | 5.80[2] |
| Characteristics | |
| Evolutionary stage | Main sequence[3] |
| Spectral type | A2 V[4] |
| B−V color index | 0.048±0.003[2] |
| Astrometry | |
| Radial velocity (Rv) | −12.9±0.5[2] km/s |
| Proper motion (μ) | RA: −0.284 mas/yr Dec.: +10.574 mas/yr |
| Parallax (π) | 5.3270 ± 0.0978 mas |
| Distance | 610 ± 10 ly (188 ± 3 pc) |
| Absolute magnitude (MV) | −0.14[2] |
| Details | |
| Mass | 2.84±0.05[3] M☉ |
| Luminosity | 126+18 −15[3] L☉ |
| Temperature | 8,872+164 −162[3] K |
| Rotational velocity (v sin i) | 43[3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
17 Canis Majoris is a single[6] star in the southern constellation of Canis Major, located 610 light years away from the Sun.[1] It is visible to the naked eye as a dim, white-hued star with an apparent visual magnitude of 5.80.[2] The object is moving closer to the Earth with a heliocentric radial velocity of −13 km/s.[2]
This is an A-type main-sequence star with a stellar classification of A2 V,[4] and is near the end of its main sequence lifetime. It has 2.8 times the mass of the Sun and is spinning with a projected rotational velocity of 43 km/s.[3] The star is radiating 126 times the luminosity of the Sun from its photosphere at an effective temperature of 8,872 K.[3] It has a magnitude 8.66 visual companion at an angular separation of 42.90″ along a position angle of 147°, as of 2015.[7]
GaiaDR2 was invoked but never defined (see the help page).Anderson2012 was invoked but never defined (see the help page).Zorec2012 was invoked but never defined (see the help page).houk1978 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).Eggleton2008 was invoked but never defined (see the help page).WDSC2014 was invoked but never defined (see the help page).