Star · M4V
CWISEP J023842.60-133210.7
CWISEP J023842.60-133210.7 is a main-sequence star of spectral type M4V in the constellation Cetus, 37.8 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 37.8 light-years (11.6 pc) |
| Apparent magnitude | magnitude 28.96 |
| Absolute magnitude | magnitude 28.64 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 5.51 × 10⁻⁹ L☉ |
| Radius | 2.79 × 10⁻⁴ R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 2h 38m 42.7s |
| Declination (J2000) | −13° 32′ 02″ |
| Space velocity (relative to the Sun) | 42.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 28.96. Visible from the whole Southern Hemisphere and north to latitude 76° N. South of latitude 76° S 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 1988. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 671 thousand years.
The Sun seen from there
From a planet around CWISEP J023842.60-133210.7, the Sun would look like a star of magnitude 5.15, in the direction where our sky has the constellation Boötes. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3189 3.16 light-years
- Gl 117 4.58 light-years
- 2MASSI J0251148-035245 6.68 light-years
- 2MASSI J0243137-245329 7.89 light-years
- Gl 84 9.17 light-years
- Gl 79 9.22 light-years
- GJ 3119 9.36 light-years
- τ¹ Eri 9.54 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.