T Normae is a

Mira variable Mira variables (named for the prototype star Mira) are a class of pulsating stars characterized by very red colours, pulsation periods longer than 100 days, and amplitudes greater than one magnitude in infrared and 2.5 magnitude at visual wave ...

star. It is located midway between

Eta Normae Eta Normae, Latinized from η Normae, is a single star in the southern constellation of Norma. It is visible to the naked eye as a faint, yellow-hued star with an apparent visual magnitude of 4.65. The distance to this star is about 219 ...

and Gamma Circini. It ranges from magnitude 6.2 to 13.6 and a period of 244 days. Located around 900 light-years distant, it shines with a

luminosity Luminosity is an absolute measure of radiated electromagnetic radiation, electromagnetic energy per unit time, and is synonymous with the radiant power emitted by a light-emitting object. In astronomy, luminosity is the total amount of electroma ...

760 times that of the Sun and has a surface temperature of 3234 K.

References

Mira variables Norma (constellation) Normae, T M-type giants Durchmusterung objects 077058 140041 Emission-line stars {{var-star-stub