Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Camelopardalis |
Right ascension | 05h 50m 33.8729s [1] |
Declination | +56° 55′ 08.1822″ [1] |
Apparent magnitude (V) | 6.590±0.009 [2] |
Characteristics | |
29 Cam A | |
Spectral type | A4 IV-V |
U−B color index | +0.13 [2] |
B−V color index | +0.09 [2] |
29 Cam B | |
Spectral type | A3 V |
Astrometry | |
29 Cam A | |
Radial velocity (Rv) | 3.9±2 [3] km/s |
Proper motion (μ) | RA: –19.460 [1] mas/yr Dec.: –4.249 [1] mas/yr |
Parallax (π) | 6.7370 ± 0.0607 mas [1] |
Distance | 484 ± 4 ly (148 ± 1 pc) |
Absolute magnitude (MV) | +0.71 [4] |
29 Cam B | |
Proper motion (μ) | RA: +2.585 [5] mas/yr Dec.: –0.570 [5] mas/yr |
Parallax (π) | 1.6375 ± 0.0483 mas [5] |
Distance | 1,990 ± 60 ly (610 ± 20 pc) |
Details | |
29 Cam A | |
Mass | 2.47 ± 0.08 [6] M☉ |
Radius | 3.49+0.14 −0.12 [7] R☉ |
Luminosity | 58.9+8.9 −7.6 [6] L☉ |
Surface gravity (log g) | 3.77 [8] cgs |
Temperature | 8,337 ± 96 [6] K |
Rotational velocity (v sin i) | 123 [9] km/s |
Age | 380 ± 14 [6] Myr |
29 Cam B | |
Mass | 2.12 [10] M☉ |
Radius | 2.06 [11] R☉ |
Luminosity | 15.043 [11] L☉ |
Temperature | 7911 [11] K |
Rotational velocity (v sin i) | 110±8 [12] km/s |
Other designations | |
Database references | |
SIMBAD | data |
29 Camelopardalis (29 Cam) is a double star in the circumpolar constellation Camelopardalis. With an apparent magnitude of 6.59, [2] it is right below the max visibility to the naked eye, and can only be viewed under phenomenal conditions. The star is located 484 light years [1] away based on parallax, but is drifting further away with a radial velocity of 3.9 km/s. [3]
29 Cam A has a classification of A4IV-V, which suggests that this star is beginning to evolve off the main sequence. Zorec et al. models it as a star that has completed 90.6% of the main sequence, which correlates to an age of 380 million years. [6] 29 Cam now has 2.47 the mass of the Sun, [6] and 3.49 times its radius. [7] It radiates at 58.9 times the luminosity of the Sun from an effective temperature of 8,337 K, [6] which gives it a white hue of an A-type star. 29 Cam spins rapidly at a projected rotational velocity of 123 km/s despite its evolved state.
29 Cam has a companion designated BD+56 1065B, which is a 10 magnitude star. According to the proper motion, this star is unrelated to the primary, and is four times further than the primary. [13] The companion is relatively cooler and less luminous than the primary.