Star · K4 V
HD 73583
HD 73583 is a main-sequence star of spectral type K4 V in the constellation Hydra, 103.0 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 42401 |
|---|---|
| Constellation | Hydra |
| Distance | 103.0 light-years (31.6 pc) |
| Apparent magnitude | magnitude 9.67 |
| Absolute magnitude | magnitude 7.17 |
| Spectral type | K4 V |
| Surface temperature | 4,510 K |
| Luminosity | 0.18 L☉ |
| Radius | 0.65 R☉ |
| Mass | 0.73 M☉ |
| Age | 0.5 billion years |
| Metallicity [Fe/H] | 0.00 |
| Right ascension (J2000) | 8h 38m 45.3s |
| Declination (J2000) | −13° 15′ 24″ |
| Space velocity (relative to the Sun) | 23.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.67. Visible from the whole Southern Hemisphere and north to latitude 77° N. South of latitude 77° S it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1923. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around HD 73583, the Sun would look like a star of magnitude 7.33, in the direction where our sky has the constellation Delphinus. It would be invisible to the naked eye.
Planets
- HD 73583 b 6.4-day orbit · 2.79 R⊕
- HD 73583 c 18.9-day orbit · 2.39 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3513 8.24 light-years
- HIP 42108 11.1 light-years
- COCONUTS-3B 12.8 light-years
- HIP 41662 14.0 light-years
- GJ 3493 14.1 light-years
- HIP 41609 16.0 light-years
- HIP 40419 16.4 light-years
- HIP 42281 17.0 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.