
Star profile
49 Ceti
What is 49 Ceti
49 Ceti is a white A-type star burning at 194 light-years inside the celestial whale, and it holds something extraordinary: around it persists a disk of gas and dust, primordial leftovers of planetary formation that radio telescopes have detected in carbon monoxide. It is one of the most studied examples of a debris disk with residual gas, a rarity for a star already entering its maturity.
Where it is and when to see it
49 Ceti lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is October, when it culminates around midnight.
- From London it culminates about 23° above the horizon.
- From New York it culminates about 34° above the horizon.
- From Sydney it culminates about 72° above the horizon.
It can be seen from anywhere south of 74° N.
It ranks no. 69 in brightness among the 111 stars of Cetus in our catalogue. To find it, start from Diphda, the brightest: it lies about 12° away (a fist at arm's length covers about 10°).
The light you see today left it about 190 years ago.
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Astronomical data for 49 Ceti
- Constellation
- Cetus
- Apparent magnitude
- 5.62
- Distance
- 193.7 light years
- Coordinates (J2000)
- RA 23.657° · Dec -15.676°
- Catalogue
- HIP 7345 · HD 9672
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Other stars in Cetus
Cetus has 111 stars in Stelvia's catalogue. Here are a few of them.
- DiphdaBeta Ceti2.04
- MenkarAlpha Ceti2.54
- Eta Ceti3.46
- 93 Ceti5.62
- 95 Ceti5.62
- Phi 4 Ceti5.62
- 64 Ceti5.64
- 66 Ceti5.65