Star · M4V
SDSS J120747.17+024424.8
SDSS J120747.17+024424.8 is a main-sequence star of spectral type M4V in the constellation Virgo, 72.4 light-years from the Sun.
| Constellation | Virgo |
|---|---|
| Distance | 72.4 light-years (22.2 pc) |
| Apparent magnitude | magnitude 21.08 |
| Absolute magnitude | magnitude 19.35 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.86 × 10⁻⁵ L☉ |
| Radius | 0.0201 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 07m 47.2s |
| Declination (J2000) | +2° 44′ 25″ |
| Space velocity (relative to the Sun) | 55.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.08. Visible from the whole Northern Hemisphere and south to latitude 87° S. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1954. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around SDSS J120747.17+024424.8, the Sun would look like a star of magnitude 6.56, in the direction where our sky has the constellation Pisces. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 1155A 4.78 light-years
- GJ 1155B 4.85 light-years
- SDSS J115553.86+055957.5 6.19 light-years
- ULAS J115508.39+044502.3 7.42 light-years
- GJ 9381 11.9 light-years
- 2MASS J12212770+0257198 12.4 light-years
- GJ 3731A 12.6 light-years
- GJ 3685A 12.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.