Star · M4V
WISEA J020229.29+230513.9
WISEA J020229.29+230513.9 is a main-sequence star of spectral type M4V in the constellation Aries, 120.7 light-years from the Sun.
| Constellation | Aries |
|---|---|
| Distance | 120.7 light-years (37.0 pc) |
| Apparent magnitude | magnitude 22.72 |
| Absolute magnitude | magnitude 19.88 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.76 × 10⁻⁵ L☉ |
| Radius | 0.0158 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 2h 02m 29.2s |
| Declination (J2000) | +23° 05′ 14″ |
| Space velocity (relative to the Sun) | 21.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.72. Visible from the whole Northern Hemisphere and south to latitude 67° S. North of latitude 67° 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 1905. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around WISEA J020229.29+230513.9, the Sun would look like a star of magnitude 7.67, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HD 12661 5.68 light-years
- SDSS J020608.97+223559.2 6.85 light-years
- HIP 10276 9.96 light-years
- HIP 9073 10.5 light-years
- λ Ari 11.3 light-years
- HIP 10510 12.1 light-years
- PSO J033.2936+20.4493 12.6 light-years
- HIP 10050 12.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.