Star · M4V
2MASS J04232191-0803051
2MASS J04232191-0803051 is a main-sequence star of spectral type M4V in the constellation Eridanus, 782.8 light-years from the Sun.
| Constellation | Eridanus |
|---|---|
| Distance | 782.8 light-years (240.0 pc) |
| Apparent magnitude | magnitude 21.77 |
| Absolute magnitude | magnitude 14.87 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 0.00177 L☉ |
| Radius | 0.158 R☉ |
| Mass | 0.121 M☉ (estimated) |
| Right ascension (J2000) | 4h 23m 21.9s |
| Declination (J2000) | −8° 03′ 05″ |
| Space velocity (relative to the Sun) | 7.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.77. Visible from the whole Southern Hemisphere and north to latitude 82° N. 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 1243. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 14 million years.
The Sun seen from there
From a planet around 2MASS J04232191-0803051, the Sun would look like a star of magnitude 11.73, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.