Star · K9V
2MASS J16452207+3004071
2MASS J16452207+3004071 is a main-sequence star of spectral type K9V in the constellation Hercules, 90.0 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 90.0 light-years (27.6 pc) |
| Apparent magnitude | magnitude 21.24 |
| Absolute magnitude | magnitude 19.04 |
| Spectral type | K9V |
| Surface temperature | 3,790 K |
| Luminosity | 7.70 × 10⁻⁶ L☉ |
| Radius | 0.00645 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 45m 22.0s |
| Declination (J2000) | +30° 04′ 06″ |
| Space velocity (relative to the Sun) | 79.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.24. Visible from the whole Northern Hemisphere and south to latitude 60° S. North of latitude 60° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1936. 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 J16452207+3004071, the Sun would look like a star of magnitude 7.03, in the direction where our sky has the constellation Caelum. It would be invisible 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.