Star · M3V
2MASSI J2104149-103736
2MASSI J2104149-103736 is a main-sequence star of spectral type M3V in the constellation Aquarius, 56.2 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 56.2 light-years (17.2 pc) |
| Apparent magnitude | magnitude 21.24 |
| Absolute magnitude | magnitude 20.06 |
| Spectral type | M3V |
| Surface temperature | 3,160 K |
| Luminosity | 9.27 × 10⁻⁶ L☉ |
| Radius | 0.0102 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 04m 15.6s |
| Declination (J2000) | −10° 37′ 42″ |
| Space velocity (relative to the Sun) | 62.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.24. Visible from the whole Southern Hemisphere and north to latitude 79° N. South of latitude 79° S it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1970. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 997 thousand years.
The Sun seen from there
From a planet around 2MASSI J2104149-103736, the Sun would look like a star of magnitude 6.01, in the direction where our sky has the constellation Cancer. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.