Star · G2
HD 194490
HD 194490 is a main-sequence star of spectral type G2 in the constellation Telescopium, 261.8 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 100942 |
|---|---|
| Constellation | Telescopium |
| Distance | 261.8 light-years (80.3 pc) |
| Apparent magnitude | magnitude 8.99 |
| Absolute magnitude | magnitude 4.47 |
| Spectral type | G2 |
| Surface temperature | 5,860 K |
| Luminosity | 1.4 L☉ |
| Radius | 1.15 R☉ |
| Mass | 1.06 M☉ |
| Metallicity [Fe/H] | 0.08 |
| Right ascension (J2000) | 20h 27m 59.8s |
| Declination (J2000) | −51° 39′ 52″ |
| Space velocity (relative to the Sun) | 54.4 km/s |
In the sky
Too faint for the naked eye (magnitude 8.99); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 38° N. South of latitude 38° S it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1764. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.6 million years.
The Sun seen from there
From a planet around HD 194490, the Sun would look like a star of magnitude 9.35, in the direction where our sky has the constellation Lynx. It would be invisible to the naked eye.
Planets
- HD 194490 b 13,100-day orbit · 12.4 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 100126 12.1 light-years
- HIP 102710 17.5 light-years
- HIP 99436 18.8 light-years
- HIP 98616 19.9 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.