Star · DA
ULAS J145935.25+085751.2
ULAS J145935.25+085751.2 is a white dwarf of spectral type DA in the constellation Boötes, 242.4 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 242.4 light-years (74.3 pc) |
| Apparent magnitude | magnitude 19.20 |
| Absolute magnitude | magnitude 14.84 |
| Spectral type | DA |
| Surface temperature | 8,000 K |
| Luminosity | 1.04 × 10⁻⁴ L☉ |
| Radius | 0.012 R☉ |
| Mass | 0.6 M☉ (estimated) |
| Right ascension (J2000) | 14h 59m 31.9s |
| Declination (J2000) | +8° 51′ 25″ |
| Space velocity (relative to the Sun) | 63.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 19.20. Visible from the whole Northern Hemisphere and south to latitude 81° S. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1784. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.3 million years.
The Sun seen from there
From a planet around ULAS J145935.25+085751.2, the Sun would look like a star of magnitude 9.19, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 74033 9.36 light-years
- CFBDS J145044.96+092108.7 9.45 light-years
- HIP 73390 9.67 light-years
- ULAS J150135.33+082215.2 11.2 light-years
- HIP 73316 12.9 light-years
- HIP 72798 14.2 light-years
- HIP 73563 14.5 light-years
- ULAS J151649.84+083607.1 18.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.