| |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Canis Minor |
| Right ascension | 07h44m 07.63294s[2] |
| Declination | +02° 24′ 19.5226″[2] |
| Apparent magnitude (V) | 6.46[3] (6.44 to 6.51)[4] |
| Characteristics | |
| Spectral type | A5 IV[5] |
| B−V color index | 0.211±0.008[3] |
| Variable type | δ Sct[6] |
| Astrometry | |
| Radial velocity (Rv) | +14.9±0.9[3] km/s |
| Proper motion (μ) | RA: −18.963[2] mas/yr Dec.: −8.672[2] mas/yr |
| Parallax (π) | 6.5237 ± 0.1107 mas[2] |
| Distance | 500 ± 8 ly (153 ± 3 pc) |
| Absolute magnitude (MV) | 1.01[3] |
| Details | |
| Mass | 1.91[7] M☉ |
| Radius | 3.83+0.20 −0.17[2] R☉ |
| Luminosity | 48.4±1.0[2] L☉ |
| Surface gravity (log g) | 3.6[8] cgs |
| Temperature | 7,783+138 −201[2] K |
| Metallicity [Fe/H] | 0.12[9] dex |
| Rotational velocity (v sin i) | 44[10] km/s |
| Age | 990[7] Myr |
| Other designations | |
AZ CMi, BD+02°1761, GC 10410, HD 62437, HIP 37705, HR 2989, SAO 115864[11] | |
| Database references | |
| SIMBAD | data |
AZ Canis Minoris is a variable star in the equatorial constellationofCanis Minor. It is just visible to the naked eye in good viewing conditions as a dim, white-hued star with an apparent visual magnitude of around 6.46.[3] The star is located around 500 light years away from the Sun based on parallax, and is drifting further away with a radial velocity of +15 km/s.[3] No evidence has been found for a companion to this star,[12] although in the past it has been reported as a binary star system.[13]
This star has a stellar classification of A5 IV,[5] matching an A-type subgiant star. The variable nature of this star was discovered in 1970 at Kitt Peak Observatory.[14] It is a monoperiodic Delta Scuti variable[8] with a cycle period of 2.29 hours and an amplitude of 0.060 in visual magnitude;[6] ranging from a peak magnitude of 6.44 down to 6.51.[4] AZ Canis Minoris is nearly a billion[7] years old with a projected rotational velocity of 44 km/s.[10] It has 1.9[7] times the mass of the Sun and 3.8[2] times the Sun's radius. The star is radiating 48[2] times as much luminosity as the Sun from its photosphere at an effective temperature of 7,783 K.[2]
