Star profile

Iota Tucanae

Variable star

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

What is Iota Tucanae

Iota Tucanae is a G-type yellow giant about 304 light-years away in the southern Toucan. With twice the Sun's mass and an eleven-fold radius, it has already left the main sequence and emits faint semi-regular pulses on a 67-day period. It is also an X-ray source, evidence of chromospheric activity at its swollen surface. A star offering a plausible glimpse of the Sun's distant future, some five billion years from now.

Where it is and when to see it

Iota Tucanae lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is August: 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.

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The signature wall

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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 Iota Tucanae

Constellation: Tucana
Apparent magnitude: 5.36
Distance: 304.3 light years
Coordinates (J2000): RA 16.828° · Dec -61.775°
Catalogue: HIP 5268 · HD 6793

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

Other stars in Tucana

Tucana has 28 stars in Stelvia's catalogue. Here are a few of them.

See all 28 stars in Tucana