Star · M4V
SDSS J024256.98+212319.6
SDSS J024256.98+212319.6 is a main-sequence star of spectral type M4V in the constellation Aries, 169.6 light-years from the Sun.
| Constellation | Aries |
|---|---|
| Distance | 169.6 light-years (52.0 pc) |
| Apparent magnitude | magnitude 22.48 |
| Absolute magnitude | magnitude 18.90 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 4.33 × 10⁻⁵ L☉ |
| Radius | 0.0248 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 2h 42m 57.0s |
| Declination (J2000) | +21° 23′ 20″ |
| Space velocity (relative to the Sun) | 28.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.48. Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1856. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.0 million years.
The Sun seen from there
From a planet around SDSS J024256.98+212319.6, the Sun would look like a star of magnitude 8.41, in the direction where our sky has the constellation Libra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 11855 10.2 light-years
- HIP 11572 10.6 light-years
- HIP 13600 14.2 light-years
- HIP 11670 16.9 light-years
- Bharani 18.2 light-years
- CFBDS J025053.33+162050.7 18.3 light-years
- HIP 13631 19.2 light-years
- 2MASSW J0242435+160739 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.