Star · M4V
ULAS J083408.92+040728.7
ULAS J083408.92+040728.7 is a main-sequence star of spectral type M4V in the constellation Hydra, 143.5 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 143.5 light-years (44.0 pc) |
| Apparent magnitude | magnitude 25.23 |
| Absolute magnitude | magnitude 22.01 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.46 × 10⁻⁶ L☉ |
| Radius | 0.0059 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 8h 34m 09.0s |
| Declination (J2000) | +4° 07′ 33″ |
| Space velocity (relative to the Sun) | 72.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 25.23. Visible from the whole Northern Hemisphere and south to latitude 86° S. 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 1882. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.5 million years.
The Sun seen from there
From a planet around ULAS J083408.92+040728.7, the Sun would look like a star of magnitude 8.05, in the direction where our sky has the constellation Aquila. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 41573 9.01 light-years
- HIP 41277 9.30 light-years
- ULAS J084302.02+001246.9 11.3 light-years
- HIP 43516 12.2 light-years
- HIP 41425 14.3 light-years
- HIP 41209 16.6 light-years
- HIP 44109 16.8 light-years
- 2MASS J08355829+0548308 16.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.