29 Camelopardalis
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 50m 33.8729s[1] |
| Declination | +56° 55′ 08.182″[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 | |
| BD+56°1065, HD 38618, HIP 27592, HR 1992, SAO 25403, WDS J05506+5655A | |
| 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
[edit | edit source]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 B
[edit | edit source]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.
References
[edit | edit source]- ^ a b c d e f Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR2 record for this source at VizieR.
- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR2 record for this source at VizieR.
- ^ a b c d e f g Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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