Star · M3V
2MASSI J1707333+430130
2MASSI J1707333+430130 is a main-sequence star of spectral type M3V in the constellation Hercules, 85.0 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 85.0 light-years (26.0 pc) |
| Apparent magnitude | magnitude 21.18 |
| Absolute magnitude | magnitude 19.10 |
| Spectral type | M3V |
| Surface temperature | 3,160 K |
| Luminosity | 2.25 × 10⁻⁵ L☉ |
| Radius | 0.0159 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 17h 07m 33.0s |
| Declination (J2000) | +43° 01′ 30″ |
| Space velocity (relative to the Sun) | 28.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.18. Visible from the whole Northern Hemisphere and south to latitude 47° S. North of latitude 47° N 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 1941. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.5 million years.
The Sun seen from there
From a planet around 2MASSI J1707333+430130, the Sun would look like a star of magnitude 6.91, in the direction where our sky has the constellation Pictor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- CWISE J170127.12+415805.3 2.44 light-years
- GJ 1213 6.80 light-years
- HIP 81919 7.27 light-years
- 2MASSW J1728114+394859 9.00 light-years
- PSO J260.3363+46.6739 9.28 light-years
- WISE J173421.02+502349.9 13.0 light-years
- GJ 3974 13.9 light-years
- GJ 4011 13.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.