HD 29587, a yellow main-sequence star in Perseus
HD 29587 is a yellow main-sequence star in the constellation Perseus. At 89 light years away, it shines at an apparent visual magnitude of 7.28.
HD 29587 (HIP 21832)
HD 29587 is a yellow main-sequence star in the constellation Perseus. At 89 light years away, it shines at an apparent visual magnitude of 7.28. It is moving through the Galaxy at a speed of 142.7 km/s relative to the Sun.
Sky position: RA 4h 41.6m, Dec +42° 7.1'
Common designations: HD 29587, HIP 21832, Gaia DR3 204358907633155840
HD 29587 has the spectral type G2V. G-type stars are yellow stars of about 5,300 to 6,000 K, the same class as the Sun. Their spectra show strong lines of ionized calcium and many metals. Its luminosity class V means it is a main-sequence (dwarf) star, still fusing hydrogen into helium in its core like the Sun.
How to find HD 29587 in the sky
HD 29587 lies in Perseus. With a declination of +42° 7.1', it is visible from the entire Northern Hemisphere and from the Southern Hemisphere down to about latitude 48° S. Observers poleward of latitude 48° N see it as circumpolar: it never sets. It is just beyond naked-eye visibility; binoculars will show it easily. It is highest in the sky at local midnight around December, which makes the weeks around that month the best time to observe it.
Tabulated data for HD 29587
Astrometry and spectroscopy
| Right Ascension (J2000) | 70.40131481° (4h 41.6m) |
| Declination (J2000) | 42.11845113° (+42° 7.1') |
| Galactic Longitude | 161.73324121° |
| Galactic Latitude | -2.77896520° |
| Proper motion RA | 534.63 mas/yr |
| Proper motion Dec | -414.95 mas/yr |
| Parallax | 36.65 ± 0.04 mas |
| Spectral Type | G2V |
| Radial Velocity | 112.67 km/s |
Photometry
| Band | Magnitude | Abs. Mag. |
|---|---|---|
| U | 7.94 | 5.76 |
| B | 7.89 | 5.71 |
| V | 7.28 | 5.10 |
| R | 6.74 | 4.56 |
| I | 6.39 | 4.21 |
| J | 6.04 | 3.86 |
| H | 5.71 | 3.53 |
| K | 5.65 | 3.47 |
Colour index B-V: +0.61
Derivations
- Heliocentric distance: 27.29 pc (89 light years) (0.1% margin of error)
- Absolute visual magnitude: 5.10
- Transverse velocity: 87.5 km/s
- Space velocity relative to the Sun: 142.7 km/s
- Galactic position (X, Y, Z): -25.9 pc, 8.5 pc, -1.3 pc
- Galactic velocity (U, V, W): -134.6 km/s, -46.1 km/s, 11.1 km/s
Data: Extended Hipparcos Compilation (XHIP) and SIMBAD.