Star · M4V
ULAS J032122.98+005105.2
ULAS J032122.98+005105.2 is a main-sequence star of spectral type M4V in the constellation Cetus, 293.5 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 293.5 light-years (90.0 pc) |
| Apparent magnitude | magnitude 26.63 |
| Absolute magnitude | magnitude 21.86 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.83 × 10⁻⁶ L☉ |
| Radius | 0.00634 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 3h 21m 23.0s |
| Declination (J2000) | +0° 51′ 05″ |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.63. Visible from the whole Northern Hemisphere and south to latitude 89° S. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1732. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.2 million years.
The Sun seen from there
From a planet around ULAS J032122.98+005105.2, the Sun would look like a star of magnitude 9.60, in the direction where our sky has the constellation Serpens. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 15430 10.9 light-years
- HIP 15624 15.1 light-years
- HIP 15436 16.8 light-years
- HIP 15599 17.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.