Star · B1I
HIP 34561
HIP 34561 is a supergiant star of spectral type B1I in the constellation Canis Major, 4,636 light-years from the Sun.
| Constellation | Canis Major |
|---|---|
| Distance | 4,636 light-years (1,421 pc) |
| Apparent magnitude | magnitude 6.00 |
| Absolute magnitude | magnitude −4.76 |
| Spectral type | B1I |
| Surface temperature | 9,650 K |
| Luminosity | 8,980 L☉ |
| Radius | 33.9 R☉ |
| Mass | 12.2 M☉ (estimated) |
| Right ascension (J2000) | 7h 09m 33.4s |
| Declination (J2000) | −16° 14′ 04″ |
| Space velocity (relative to the Sun) | 36.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.00). Visible from the whole Southern Hemisphere and north to latitude 74° N. South of latitude 74° S it never sets. 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 4,636 years ago. At that time the first farming villages were being founded; there was no writing yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 82 million years.
The Sun seen from there
From a planet around HIP 34561, the Sun would look like a star of magnitude 15.59, in the direction where our sky has the constellation Aquila. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.