Star · F9.5 V
Tupi
Tupi is a main-sequence star of spectral type F9.5 V in the constellation Reticulum, 109.2 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HD 23079 · HIP 17096 |
|---|---|
| Constellation | Reticulum |
| Distance | 109.2 light-years (33.5 pc) |
| Apparent magnitude | magnitude 7.12 |
| Absolute magnitude | magnitude 4.50 |
| Spectral type | F9.5 V |
| Surface temperature | 5,990 K |
| Luminosity | 1.35 L☉ |
| Radius | 1.08 R☉ |
| Mass | 1.16 M☉ |
| Age | 2.6 billion years |
| Metallicity [Fe/H] | -0.13 |
| Right ascension (J2000) | 3h 39m 43.1s |
| Declination (J2000) | −52° 54′ 57″ |
| Space velocity (relative to the Sun) | 33.9 km/s |
In the sky
Too faint for the naked eye (magnitude 7.12); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 37° N. South of latitude 37° 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 1917. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around Tupi, the Sun would look like a star of magnitude 7.45, in the direction where our sky has the constellation Draco. It would be invisible to the naked eye.
Planets
- HD 23079 b 736-day orbit · 13.2 R⊕
- HD 23079 c 5.75-day orbit · 2.8 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISEA J032049.31-532656.7 5.68 light-years
- HIP 15539 6.76 light-years
- HIP 17364 7.78 light-years
- HIP 19248 8.07 light-years
- GJ 3246 10.3 light-years
- HD 21693 10.8 light-years
- HIP 13886 13.2 light-years
- DENIS J031433.1-462339 15.1 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.