HD 4203
Star in the constellation Pisces / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about HD 4203?
Summarize this article for a 10 year old
HD 4203 is a single star in the equatorial constellation of Pisces, near the northern constellation border with Andromeda. It has a yellow hue and is too faint to be viewed with the naked eye, having an apparent visual magnitude of 8.70.[2] The distance to this object is 266 light years based on parallax,[1] but it is drifting closer to the Sun with a radial velocity of −14 km/s.[2]
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Pisces |
Right ascension | 00h 44m 41.2003s[1] |
Declination | +20° 26′ 56.1380″[1] |
Apparent magnitude (V) | 8.70[2] |
Characteristics | |
Spectral type | G5V[3] |
B−V color index | +0.771±0.021[2] |
Astrometry | |
Radial velocity (Rv) | −14.20±0.09[2] km/s |
Proper motion (μ) | RA: +122.070±0.102[1] mas/yr Dec.: −124.192±0.062[1] mas/yr |
Parallax (π) | 12.2595 ± 0.0538 mas[1] |
Distance | 266 ± 1 ly (81.6 ± 0.4 pc) |
Absolute magnitude (MV) | 4.28[2] |
Details[4] | |
Mass | 1.12±0.03 M☉ |
Radius | 1.35±0.03 R☉ |
Luminosity | 1.68±0.01 L☉ |
Surface gravity (log g) | 4.22±0.03 cgs |
Temperature | 5,666±43 K |
Metallicity [Fe/H] | 0.34±0.01[2] dex |
Rotational velocity (v sin i) | 5.6[5] km/s |
Age | 6.3±1.0 Gyr |
Other designations | |
Database references | |
SIMBAD | data |
Exoplanet Archive | data |
This object is an ordinary G-type main-sequence star with a stellar classification of G5V. It is photometrically-stable star with an inactive chromosphere, and has a much higher than normal metallicity.[3] The star is roughly 6.3 billion years old and is spinning with a projected rotational velocity of 5.6 km/s.[5] It has 12% more mass than the Sun and a 35% greater radius. HD 4203 is radiating 1.68 times the luminosity of the Sun from its photosphere at an effective temperature of 5,666 K.[4]