Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Puppis[1] |
Right ascension | 07h 10m 24.06046s[2] |
Declination | −39° 05′ 50.5712″[2] |
Apparent magnitude (V) | 10.4 |
Characteristics | |
Spectral type | F6V[3][4] |
Apparent magnitude (B) | 11.00[5] |
Apparent magnitude (V) | 10.51[5] |
Apparent magnitude (J) | 9.625[5] |
Apparent magnitude (H) | 9.439[5] |
Apparent magnitude (K) | 9.374[5] |
Astrometry | |
Radial velocity (Rv) | 38.25±0.22[2] km/s |
Proper motion (μ) | RA: −3.735 mas/yr[2] Dec.: 25.663 mas/yr[2] |
Parallax (π) | 3.7996 ± 0.0104 mas[2] |
Distance | 858 ± 2 ly (263.2 ± 0.7 pc) |
Details | |
Mass | 1.353[3] M☉ |
Radius | 1.458[3] R☉ |
Temperature | 6,460.0[3] K |
Metallicity [Fe/H] | 0.13[3] dex |
Rotational velocity (v sin i) | 11.90±0.31[6] km/s |
Other designations | |
Database references | |
SIMBAD | data |
WASP-121, also known as CD-38 3220 and formally named Dilmun,[7] is a magnitude 10.4 star located approximately 858 light-years (263 parsecs) away in the constellation Puppis.[1] WASP-121 has a mass and radius similar to the Sun's. It hosts one known exoplanet.
The star, although metal-rich in terms of overall contents of heavy elements, is depleted of carbon. The carbon to oxygen molar ratio of 0.23±0.05 for WASP-121 is well below the solar ratio of 0.55.[8]
Constellation
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