Star · F0V
Alkalurops
Alkalurops is a main-sequence star of spectral type F0V in the constellation Boötes, 122.7 light-years from the Sun.
| Other names | μ¹ Boo · GJ 3903A · HIP 75411 |
|---|---|
| Constellation | Boötes |
| Distance | 122.7 light-years (37.6 pc) |
| Apparent magnitude | magnitude 4.31 |
| Absolute magnitude | magnitude 1.43 |
| Spectral type | F0V |
| Surface temperature | 7,410 K |
| Luminosity | 23.1 L☉ |
| Radius | 2.92 R☉ |
| Mass | 2.23 M☉ (estimated) |
| Right ascension (J2000) | 15h 24m 29.4s |
| Declination (J2000) | +37° 22′ 38″ |
| Space velocity (relative to the Sun) | 32.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.31). Visible from the whole Northern Hemisphere and south to latitude 53° S. North of latitude 53° N it never sets. 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 1903. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around Alkalurops, the Sun would look like a star of magnitude 7.71, in the direction where our sky has the constellation Fornax. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Alkalurops B 2.92 light-years
- δ Boo 9.72 light-years
- HIP 74674 9.76 light-years
- HIP 76897 10.8 light-years
- SDSS J154508.93+355527.3 12.5 light-years
- HIP 75039 13.3 light-years
- HIP 73934 15.2 light-years
- SDSS J145057.34+392045.2 15.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.