The HD 23472 system contains 5 exoplanets. It is located 127.31 light years away from the solar system.
| Mass | 0.67 solar masses |
| Radius | 0.71 solar radiae |
| Temperature | 4684 kelvin |
| Stellar Metallicity | -0.2 decimal exponent |
| Age | - billion years |
At more than 10 Earth masses, HD 23472 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 8.320 Earth masses |
| Density | 6.150 grams per cubic centimeter |
| Radius | 2.000 Earth radiae |
| Semi-major Axis | 0.1162 AU |
| Eccentricity | 0.072 |
| Orbital Period | 17.667 days |
| Discovery Method | Transit |
| Discovery Facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery Telescope | 0.1 m TESS Telescope |
| Discovery Instrument | TESS CCD Array |
| Discovery Date | 2019-02 |
| Reference | Trifonov et al. 2019 |
With a mass below 5 Earth masses, a density of 3.1, and a semi-major axis of 0.1646 astronomical units, HD 23472 c could, potentially, be an ocean world - a planet with no dry land.
| Mass | 3.410 Earth masses |
| Density | 3.100 grams per cubic centimeter |
| Radius | 1.870 Earth radiae |
| Semi-major Axis | 0.1646 AU |
| Eccentricity | 0.063 |
| Orbital Period | 29.797 days |
| Discovery Method | Transit |
| Discovery Facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery Telescope | 0.1 m TESS Telescope |
| Discovery Instrument | TESS CCD Array |
| Discovery Date | 2019-02 |
| Reference | Trifonov et al. 2019 |
At less than 1.5 Earth masses, HD 23472 d is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.550 Earth masses |
| Density | 7.500 grams per cubic centimeter |
| Radius | 0.750 Earth radiae |
| Semi-major Axis | 0.04298 AU |
| Eccentricity | 0.07 |
| Orbital Period | 3.977 days |
| Discovery Method | Transit |
| Discovery Facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery Telescope | 0.1 m TESS Telescope |
| Discovery Instrument | TESS CCD Array |
| Discovery Date | 2022-09 |
| Reference | Barros et al. 2022 |
At less than 1.5 Earth masses, HD 23472 e is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.720 Earth masses |
| Density | 7.500 grams per cubic centimeter |
| Radius | 0.818 Earth radiae |
| Semi-major Axis | 0.068 AU |
| Eccentricity | 0.07 |
| Orbital Period | 7.908 days |
| Discovery Method | Transit |
| Discovery Facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery Telescope | 0.1 m TESS Telescope |
| Discovery Instrument | TESS CCD Array |
| Discovery Date | 2022-09 |
| Reference | Barros et al. 2022 |
With a mass below 5 Earth masses, a density of 3, and a semi-major axis of 0.0906 astronomical units, HD 23472 f could, potentially, be an ocean world - a planet with no dry land.
| Mass | 0.770 Earth masses |
| Density | 3.000 grams per cubic centimeter |
| Radius | 1.137 Earth radiae |
| Semi-major Axis | 0.0906 AU |
| Eccentricity | 0.07 |
| Orbital Period | 12.162 days |
| Discovery Method | Transit |
| Discovery Facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery Telescope | 0.1 m TESS Telescope |
| Discovery Instrument | TESS CCD Array |
| Discovery Date | 2022-09 |
| Reference | Barros et al. 2022 |