A red giant between Vandor IV and a pulsar
- You may also be looking for a red supergiant.
A red giant is a very large, relatively cool star, formed when a main sequence star ran out of hydrogen and began fusing helium. Some red giants were considered B class stars. (TNG: "We'll Always Have Paris")
Azati Prime, the location where the Xindi built their weapon in the 2150s, was a red giant star, one of seven spread over about 40 light years. (ENT: "Stratagem", "Azati Prime")
The central star in the Bopak system was a red giant. (DS9: "Hippocratic Oath")
The Vandor system was a binary star system that was comprised of a red giant and pulsar. It was chosen by Paul Manheim as the site of his temporal experiments because of the system's unique gravity signature. (TNG: "We'll Always Have Paris")
A binary star system in the Kavis Alpha sector, studied by Doctor Paul Stubbs with his egg probe in early 2366, consisted of a neutron star and a red giant. (TNG: "Evolution")
The Nyrian system contained a red giant star. (VOY: "Displaced")
One of the Think Tank's accomplishments was re-igniting the red giants of the Zai Cluster. (VOY: "Think Tank")
In 2377, a red giant was one of the obstacles during the Antarian Trans-stellar Rally. Tom Paris and B'Elanna Torres had to adjust the Delta Flyer II's course when approaching it and recalibrate their sensors to compensate for photonic interference. (VOY: "Drive")
Soon after, a trio of Ferengi hatched an elaborate plan to steal Seven of Nine's nanoprobes by using two red giants to create a geodesic fold. (VOY: "Inside Man")
In 2378, Seven of Nine noted that USS Voyager's sensors had detected a red giant in a region of space supposedly under the control of the R'Kaal. (VOY: "Renaissance Man")