| 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[6] | |
| Mass | 1.330±0.019 M☉ |
| Radius | 1.461±0.015 R☉ |
| Surface gravity (log g) | 4.251±0.003 cgs |
| Temperature | 6,628±66 K |
| Metallicity [Fe/H] | +0.17±0.05 dex |
| Rotational velocity (v sin i) | 11.90±0.31[7] km/s |
| Age | 1.11±0.14 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
WASP-121, also known as CD-38 3220 and formally named Dilmun,[8] 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.[9]
Constellation was invoked but never defined (see the help page).DR3 was invoked but never defined (see the help page).EP-2015 was invoked but never defined (see the help page).WASP-2017 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).Sing2024 was invoked but never defined (see the help page).Borsa2020 was invoked but never defined (see the help page).