Star profile

81 Ceti

3D likeness based on its real data · class G · ~5,500 K

What is 81 Ceti

81 Ceti is a G5 giant with 2.4 times the Sun's mass, already evolved off the main sequence. A confirmed exoplanet circles it, 81 Ceti b, a gas giant of about 3.3 Jupiter masses orbiting in 2.8 years at a distance comparable to our asteroid belt. Its yellowish light reaches us from 302 light-years away within the celestial Whale.

Where it is and when to see it

81 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: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.

Find it on the sky map

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The signature wall

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A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works

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Write my signature

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 81 Ceti

Constellation: Cetus
Apparent magnitude: 5.65
Distance: 301.8 light years
Coordinates (J2000): RA 39.424° · Dec -3.396°
Catalogue: HIP 12247 · HD 16400

A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.

Other stars in Cetus

Cetus has 111 stars in Stelvia's catalogue. Here are a few of them.

See all 111 stars in Cetus