Star · M3.5
CHXR 73
CHXR 73 is a main-sequence star of spectral type M3.5 in the constellation Chamaeleon, 620.9 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Chamaeleon |
|---|---|
| Distance | 620.9 light-years (190.4 pc) |
| Apparent magnitude | magnitude 17.59 |
| Absolute magnitude | magnitude 11.19 |
| Spectral type | M3.5 |
| Surface temperature | 3,100 K |
| Luminosity | 0.0377 L☉ |
| Radius | 0.674 R☉ |
| Mass | 0.35 M☉ |
| Age | 0.0 billion years |
| Right ascension (J2000) | 11h 06m 28.7s |
| Declination (J2000) | −77° 37′ 33″ |
| Space velocity (relative to the Sun) | 20.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 17.59. Visible from the whole Southern Hemisphere and north to latitude 12° N. South of latitude 12° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1405. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
The Sun seen from there
From a planet around CHXR 73, the Sun would look like a star of magnitude 11.23, in the direction where our sky has the constellation Cepheus. It would be invisible to the naked eye.
Planets
- CHXR 73 b 12.3 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.