Star · M0V
SDSS J154625.94+160917.9
SDSS J154625.94+160917.9 is a main-sequence star of spectral type M0V in the constellation Serpens, 176.5 light-years from the Sun.
| Constellation | Serpens |
|---|---|
| Distance | 176.5 light-years (54.1 pc) |
| Apparent magnitude | magnitude 21.67 |
| Absolute magnitude | magnitude 18.00 |
| Spectral type | M0V |
| Surface temperature | 3,570 K |
| Luminosity | 2.74 × 10⁻⁵ L☉ |
| Radius | 0.0137 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 46m 26.0s |
| Declination (J2000) | +16° 09′ 16″ |
| Space velocity (relative to the Sun) | 54.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.67. Visible from the whole Northern Hemisphere and south to latitude 74° S. North of latitude 74° 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 1850. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around SDSS J154625.94+160917.9, the Sun would look like a star of magnitude 8.50, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 77327 5.87 light-years
- τ⁷ Ser 8.12 light-years
- τ⁵ Ser 10.2 light-years
- HIP 76408 11.4 light-years
- HIP 77226 13.1 light-years
- HIP 78833 15.0 light-years
- SDSS J155644.35+172308.9 17.5 light-years
- HIP 75269 17.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.