Star · M4V
2MASS J18000116-1559235
2MASS J18000116-1559235 is a main-sequence star of spectral type M4V in the constellation Serpens, 40.2 light-years from the Sun.
| Constellation | Serpens |
|---|---|
| Distance | 40.2 light-years (12.3 pc) |
| Apparent magnitude | magnitude 18.93 |
| Absolute magnitude | magnitude 18.48 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 6.39 × 10⁻⁵ L☉ |
| Radius | 0.0301 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 18h 00m 01.2s |
| Declination (J2000) | −15° 59′ 24″ |
| Space velocity (relative to the Sun) | 17.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 18.93. Visible from the whole Southern Hemisphere and north to latitude 74° N. South of latitude 74° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1986. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 713 thousand years.
The Sun seen from there
From a planet around 2MASS J18000116-1559235, the Sun would look like a star of magnitude 5.28, in the direction where our sky has the constellation Orion. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 716 6.46 light-years
- GJ 2138 7.71 light-years
- Gl 722 7.92 light-years
- WISE J170745.85-174452.5 8.89 light-years
- 2MASSW J1645221-131951 12.7 light-years
- Gl 654 12.7 light-years
- Gl 653 12.7 light-years
- Gl 660B 13.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.