Tau Geminorum [SEP] constellation
Tau Geminorum
Tau Geminorum, Latinized from τ Geminorum, is a star in the northern zodiac constellation of Gemini. It has the apparent visual magnitude of +4.42, making it visible to the naked eye under suitably good seeing conditions. This star is close enough to the Earth that its distance can be measured using the parallax technique, which yields a value of roughly .
It is an evolved giant star of the spectral type K2 III. It has double the mass of the Sun and has expanded to 27 times the
part of (), meaning "Left Wall of Heavenly Market Enclosure." The stars in this group include ν Ophiuchi, δ Herculis, λ Herculis, μ Herculis, ο Herculis, 112 Herculis, ζ Aquilae, θ Serpentis, η Serpentis, ξ Serpentis and η Ophiuchi. Consequently, ν Ophiuchi itself is known as (, ), and together with ζ Capricorni represents the state Yan (燕) in the "Twelve States" constellation.
See also.
- Nu Ophiuchi in fiction
- Tau Geminorum