Loading AI tools
HD 24496 is a binary star[9] system in the equatorial constellation of Taurus. The combined apparent visual magnitude of the pair is 6.81,[2] which is too faint to be readily visible to the normal human eye. The system is located at a distance of 66.8 light-years from the Sun, based on parallax,[1] and is drifting further away with a radial velocity of +19 km/s.[2] It is traversing the celestial sphere with a proper motion of 0.276″ per year.[10]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 03h 54m 28.03326s[1] |
| Declination | +16° 36′ 57.7897″[1] |
| Apparent magnitude (V) | 6.81[2] (6.9 + 11.1)[3] |
| Characteristics | |
| Spectral type | G7V[4] + M2V[5] |
| Apparent magnitude (B) | 7.529[2] |
| Apparent magnitude (R) | 6.40[2] |
| Apparent magnitude (I) | 6.000[2] |
| Apparent magnitude (J) | 5.384±0.024[2] |
| Apparent magnitude (H) | 5.102±0.026[2] |
| Apparent magnitude (K) | 4.995±0.017[2] |
| B−V color index | 0.719±0.001[2] |
| Astrometry | |
| Radial velocity (Rv) | +18.99±0.09[2] km/s |
| Proper motion (μ) | RA: +214.191[1] mas/yr Dec.: −167.336[1] mas/yr |
| Parallax (π) | 48.8107 ± 0.0474 mas[1] |
| Distance | 66.82 ± 0.06 ly (20.49 ± 0.02 pc) |
| Absolute magnitude (MV) | 5.26[2] |
| Details[6] | |
| A | |
| Mass | 0.956+0.030 −0.036 M☉ |
| Radius | 0.91±0.03 R☉ |
| Luminosity | 0.705+0.073 −0.076 L☉ |
| Surface gravity (log g) | 4.52+0.03 −0.04 cgs |
| Temperature | 5,572±44 K |
| Metallicity [Fe/H] | −0.01±0.03 dex |
| Rotational velocity (v sin i) | 0.0±0.5 km/s |
| Age | 3.316+3.88 −3.16 Gyr |
| B | |
| Mass | 0.53[7] M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
The magnitude 6.9[3] primary star, designated component A, is a G-type main-sequence star with a stellar classification of G7V.[4] It is around three billion years old with a low projected rotational velocity. The star has 96% of the mass of the Sun and 91% of the Sun's radius. The metallicity, what astronomers term the abundance of heavier elements, is about the same as in the Sun. The star is radiating 71% of the luminosity of the Sun from its photosphere at an effective temperature of 5,572 K.[6]
The secondary companion, component B, is of magnitude 11.1[3] red dwarf of class M2V[5] that shares a common proper motion with the primary.[11] They have an angular separation of 2.7″ along a position angle of 256°, which is equivalent to a physical projected separation of 55.2 AU.[5] Their orbital period is around 123,000 years.[7]
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
