Yellow giant
Tonatiuh
Also known as: HIP 58952
mag 5.8320 light-years
About
Tonatiuh is a yellow giant of magnitude 5.8, about 320 light-years away.
How to find it
- Best evenings: around early May it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
- Where on Earth: it is seen well, at least 10° up, from north of 3° S.
When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.
What you will see
- EyesNeeds a dark sky away from city lights.
- Binoculars (10×50)A sharp point; binoculars bring out its colour and the fainter stars around it.
- Telescope (6–8 inch)Still a point of light at any magnification — stars are too far away to show a disc. Low in the sky, bright stars twinkle and flash colours.
Stars look the same in any instrument: brighter and sharper, but never bigger.
Facts
| Proper name | Tonatiuh |
|---|---|
| Hipparcos number | HIP 58952 |
| Type | Yellow giant |
| Spectral type | G9III |
| Colour | Pale orangeB−V colour index 1.03 |
| Magnitude | 5.8The smaller the number, the brighter. |
| Distance | 320 light-yearsThe light you see left it around 1710. |
| Proper motion | 0.17″ per year across the sky |
| Right ascension (J2000) | 12h 05m 14.8s |
| Declination (J2000) | +76° 54′ 21″ |
Sources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →