Star profile
Upsilon Lupi
What is Upsilon Lupi
In the Wolf — the constellation that Greek astronomers pictured as an animal held aloft by the neighbouring Centaur — this A-type white star shines from 407 light-years away. Its light set out at the start of the 17th century, just as Galileo first turned his small telescope toward the moons of Jupiter. The region of sky where it lies also holds the remnant of one of the brightest supernovae ever recorded, SN 1006, witnessed by Chinese and Arab astronomers a thousand years ago.
Where it is and when to see it
Upsilon Lupi lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May, when it culminates around midnight.
- From London it never rises above the horizon.
- From New York it culminates about 10° above the horizon.
- From Sydney it culminates about 84° above the horizon.
It can be seen from anywhere south of 50° N.
It ranks no. 41 in brightness among the 74 stars of Lupus in our catalogue. To find it, start from Alpha Lupi, the brightest: it lies about 11° away (a fist at arm's length covers about 10°).
The light you see today left it about 410 years ago.
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Astronomical data for Upsilon Lupi
- Constellation
- Lupus
- Apparent magnitude
- 5.36
- Distance
- 406.7 light years
- Coordinates (J2000)
- RA 231.188° · Dec -39.710°
- Catalogue
- HIP 75439 · HD 136933
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Lupus
Lupus has 74 stars in Stelvia's catalogue. Here are a few of them.
- Alpha Lupi2.30
- Beta Lupi2.68
- Gamma Lupi2.80
- HIP 722905.22
- HIP 769395.23
- HIP 758285.26
- HIP 709315.38
- HIP 730955.38