Star · G2V
SDSS J074313.34+151020.8
SDSS J074313.34+151020.8 is a main-sequence star of spectral type G2V in the constellation Gemini, 256.3 light-years from the Sun.
| Constellation | Gemini |
|---|---|
| Distance | 256.3 light-years (78.6 pc) |
| Apparent magnitude | magnitude 22.09 |
| Absolute magnitude | magnitude 17.61 |
| Spectral type | G2V |
| Surface temperature | 5,780 K |
| Luminosity | 8.36 × 10⁻⁶ L☉ |
| Radius | 0.00289 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 7h 43m 13.3s |
| Declination (J2000) | +15° 10′ 20″ |
| Space velocity (relative to the Sun) | 55.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.09. Visible from the whole Northern Hemisphere and south to latitude 75° S. North of latitude 75° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1770. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.5 million years.
The Sun seen from there
From a planet around SDSS J074313.34+151020.8, the Sun would look like a star of magnitude 9.31, in the direction where our sky has the constellation Sagittarius. It would be invisible to the naked eye.
Neighbours
The catalogue has no other star within 20 light-years.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.