Star profile
Delta Caelum
Hot blue starWhat is Delta Caelum
Delta Caeli is a hot blue star 705 light-years away, one of the few beacons of a quiet, almost forgotten constellation: the Chisel, traced by Lacaille across the southern sky. Its B-type spectrum places it among the hottest stars in the visible sky, with a surface comfortably above 15,000 degrees and a lifespan measured in just a few hundred million years.
Where it is and when to see it
Delta Caelum lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is November, when it culminates around midnight.
- From London it never rises above the horizon.
- From New York it culminates about 4° above the horizon.
- From Sydney it culminates about 79° above the horizon.
It can be seen from anywhere south of 45° N.
It ranks no. 4 in brightness among the 7 stars of Caelum in our catalogue. To find it, start from Alpha Caelum, the brightest: it lies about 4° away (a fist at arm's length covers about 10°).
The light you see today left it about 700 years ago.
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A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.
Astronomical data for Delta Caelum
- Constellation
- Caelum
- Apparent magnitude
- 5.07
- Distance
- 704.5 light years
- Coordinates (J2000)
- RA 67.709° · Dec -44.954°
- Catalogue
- HIP 21060 · HD 28873
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Caelum
Caelum has 7 stars in Stelvia's catalogue. Here are a few of them.
See all 7 stars in Caelum