Star · M3V
2MASS J00100009-2031122
2MASS J00100009-2031122 is a main-sequence star of spectral type M3V in the constellation Cetus, 91.5 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 91.5 light-years (28.1 pc) |
| Apparent magnitude | magnitude 21.63 |
| Absolute magnitude | magnitude 19.39 |
| Spectral type | M3V |
| Surface temperature | 3,110 K |
| Luminosity | 1.95 × 10⁻⁵ L☉ |
| Radius | 0.0152 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 0h 10m 00.2s |
| Declination (J2000) | −20° 31′ 12″ |
| Space velocity (relative to the Sun) | 15.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.63. Visible from the whole Southern Hemisphere and north to latitude 69° N. South of latitude 69° S it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1934. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around 2MASS J00100009-2031122, the Sun would look like a star of magnitude 7.07, in the direction where our sky has the constellation Coma Berenices. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISEPC J000849.76-173922.6 4.60 light-years
- 2MASSI J0013578-223520 6.27 light-years
- HIP 118278 7.25 light-years
- HIP 669 9.32 light-years
- DENIS J2354599-185221 10.7 light-years
- WISEA J000430.66-260402.3 11.3 light-years
- WISEA J000458.47-133655.1 11.8 light-years
- GJ 9008 12.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.