Star · M4V
WISE J212321.92-261405.1
WISE J212321.92-261405.1 is a main-sequence star of spectral type M4V in the constellation Capricornus, 79.6 light-years from the Sun.
| Constellation | Capricornus |
|---|---|
| Distance | 79.6 light-years (24.4 pc) |
| Apparent magnitude | magnitude 25.04 |
| Absolute magnitude | magnitude 23.10 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 9.01 × 10⁻⁷ L☉ |
| Radius | 0.00357 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 23m 21.8s |
| Declination (J2000) | −26° 14′ 04″ |
| Space velocity (relative to the Sun) | 7.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 25.04. Visible from the whole Southern Hemisphere and north to latitude 64° N. South of latitude 64° S it never sets. 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 1946. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around WISE J212321.92-261405.1, the Sun would look like a star of magnitude 6.77, 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):
- Gl 836.1 8.41 light-years
- PSO J318.5338-22.8603 8.90 light-years
- CWISEP J210007.87-293139.8 9.40 light-years
- 2MASS J21512543-2441000 11.3 light-years
- GJ 4197 11.9 light-years
- GJ 4162 12.8 light-years
- Gl 811 13.2 light-years
- GJ 4243B 13.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.