Star · K4 V
HD 23472
HD 23472 is a main-sequence star of spectral type K4 V in the constellation Reticulum, 127.5 light-years from the Sun. It is orbited by 5 confirmed exoplanet(s).
| Other names | HIP 17264 |
|---|---|
| Constellation | Reticulum |
| Distance | 127.5 light-years (39.1 pc) |
| Apparent magnitude | magnitude 9.73 |
| Absolute magnitude | magnitude 6.77 |
| Spectral type | K4 V |
| Surface temperature | 4,680 K |
| Luminosity | 0.237 L☉ |
| Radius | 0.71 R☉ |
| Mass | 0.67 M☉ |
| Metallicity [Fe/H] | -0.20 |
| Right ascension (J2000) | 3h 41m 50.4s |
| Declination (J2000) | −62° 46′ 01″ |
| Space velocity (relative to the Sun) | 40.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.73. Visible from the whole Southern Hemisphere and north to latitude 27° N. South of latitude 27° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1899. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around HD 23472, the Sun would look like a star of magnitude 7.79, in the direction where our sky has the constellation Draco. It would be invisible to the naked eye.
Planets
- HD 23472 d 3.98-day orbit · 0.75 R⊕
- HD 23472 e 7.91-day orbit · 0.818 R⊕
- HD 23472 f 12.2-day orbit · 1.14 R⊕
- HD 23472 b 17.7-day orbit · 2 R⊕
- HD 23472 c 29.8-day orbit · 1.87 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 19467 9.21 light-years
- HIP 17398 10.5 light-years
- GJ 9134 11.5 light-years
- 2MASS J03421621-6817321 12.6 light-years
- HIP 16693 13.2 light-years
- HIP 13359 13.8 light-years
- HIP 15968 15.2 light-years
- HD 16905 16.7 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.