Star profile
HIP 82493
Variable starWhat is HIP 82493
In Scorpius burns a rare O-type star, the hottest and most luminous category in the stellar catalogue. Variable, massive and violent, it drives winds that carve bubbles into the surrounding interstellar medium. At magnitude 5.23 it is barely sensed at the edge of nocturnal sight, yet its nature belongs to the elite of stars that will end their days as supernovae, returning to space the heavy elements from which new worlds will form.
Where it is and when to see it
HIP 82493 lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is June, when it culminates around midnight.
- From London it never rises above the horizon.
- From New York it culminates about 8° above the horizon.
- From Sydney it culminates about 83° above the horizon.
It can be seen from anywhere south of 49° N.
It ranks no. 46 in brightness among the 104 stars of Scorpius in our catalogue. To find it, start from Antares, the brightest: it lies about 15° away (a fist at arm's length covers about 10°).
The light you see today left it about 330,000 years ago.
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Astronomical data for HIP 82493
- Constellation
- Scorpius
- Apparent magnitude
- 5.23
- Distance
- 326200.0 light years
- Coordinates (J2000)
- RA 252.891° · Dec -41.231°
- Catalogue
- HIP 82493 · HD 151804
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Scorpius
Scorpius has 104 stars in Stelvia's catalogue. Here are a few of them.
- AntaresAlpha Scorpii1.06
- ShaulaLambda Scorpii1.62
- SargasTheta Scorpii1.86
- HIP 840335.06
- HIP 793025.09
- HIP 851625.10
- Chi Scorpii5.24
- HIP 809455.31