- Source: Iota Tucanae
Iota Tucanae (ι Tuc, ι Tucanae) is a solitary star in the southern constellation of Tucana. Based upon an annual parallax shift of 10.72 mas as seen from Earth, it is located around 304 light years from the Sun. With an apparent visual magnitude of +5.33, it is faintly visible to the naked eye.
This is a yellow-hued G-type giant star with a stellar classification of G5 III. It is classified as a semiregular variable star, showing a periodicity of 66.8 days with an amplitude of 0.0202 in visual magnitude. Iota Tucanae is an X-ray source with a luminosity of 817.6×1028 erg s−1. It has an estimated 2.2 times the mass of the Sun, and, at the age of 1.69 billion years, it has evolved away from the main sequence, expanding to 11 times the Sun's radius. The star radiates 65 times the solar luminosity from its photosphere at an effective temperature of 5,039 K.
References
Kata Kunci Pencarian:
- Iota Tucanae
- Centaurus
- Alpha Gruis
- Beta Gruis
- List of star systems within 100–150 light-years
- List of star systems within 75–80 light-years
- List of brightest natural objects in the sky
- List of star systems within 65–70 light-years
- Discoveries of exoplanets
- Stars named after people
