Star · M1V
SDSS J214527.82-073434.1
SDSS J214527.82-073434.1 is a main-sequence star of spectral type M1V in the constellation Aquarius, 202.4 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 202.4 light-years (62.1 pc) |
| Apparent magnitude | magnitude 21.72 |
| Absolute magnitude | magnitude 17.76 |
| Spectral type | M1V |
| Surface temperature | 3,510 K |
| Luminosity | 3.82 × 10⁻⁵ L☉ |
| Radius | 0.0167 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 45m 28.0s |
| Declination (J2000) | −7° 34′ 35″ |
| Space velocity (relative to the Sun) | 57.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.72. Visible from the whole Southern Hemisphere and north to latitude 82° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1824. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.6 million years.
The Sun seen from there
From a planet around SDSS J214527.82-073434.1, the Sun would look like a star of magnitude 8.79, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 107273 6.12 light-years
- HIP 107527 15.9 light-years
- CFBDS J214139.77-033739.0 17.2 light-years
- HIP 105947 18.2 light-years
- HIP 106510 19.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.