Star · M0V
2MASSI J1305410+204639
2MASSI J1305410+204639 is a main-sequence star of spectral type M0V in the constellation Coma Berenices, 65.0 light-years from the Sun.
| Constellation | Coma Berenices |
|---|---|
| Distance | 65.0 light-years (19.9 pc) |
| Apparent magnitude | magnitude 21.75 |
| Absolute magnitude | magnitude 20.25 |
| Spectral type | M0V |
| Surface temperature | 3,530 K |
| Luminosity | 3.67 × 10⁻⁶ L☉ |
| Radius | 0.00511 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 13h 05m 41.0s |
| Declination (J2000) | +20° 46′ 41″ |
| Space velocity (relative to the Sun) | 10.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.75. Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1961. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around 2MASSI J1305410+204639, the Sun would look like a star of magnitude 6.33, in the direction where our sky has the constellation Cetus. 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.