Star · M4V
SDSS J090023.68+253934.3
SDSS J090023.68+253934.3 is a main-sequence star of spectral type M4V in the constellation Cancer, 120.7 light-years from the Sun.
| Constellation | Cancer |
|---|---|
| Distance | 120.7 light-years (37.0 pc) |
| Apparent magnitude | magnitude 21.93 |
| Absolute magnitude | magnitude 19.09 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.63 × 10⁻⁵ L☉ |
| Radius | 0.0227 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 9h 00m 23.7s |
| Declination (J2000) | +25° 39′ 35″ |
| Space velocity (relative to the Sun) | 9.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.93. Visible from the whole Northern Hemisphere and south to latitude 64° S. North of latitude 64° N it never sets. It stands highest at midnight in February, 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 SDSS J090023.68+253934.3, the Sun would look like a star of magnitude 7.67, in the direction where our sky has the constellation Capricornus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 44387 2.07 light-years
- HIP 44089 4.72 light-years
- HIP 43670 5.04 light-years
- HIP 43274 8.97 light-years
- HIP 44097 9.75 light-years
- HIP 44176 10.1 light-years
- HIP 42783 10.8 light-years
- HIP 44687 11.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.