You cannot determine the age of a star based on it's luminosity or spectral class.
However, you can make *assumptions*.
OB and A stars are massive and will have a short lifespan in the millions of years.
FG and K stars have a longer life period - in the billions of years.
KMWLY and T stars are stars those that cause problems.
Most stars in this class are red dwarfs, stars that are so low in mass that they have a low rate of nuclear fusion and last for tens of billions of years.
In general - and I mean in general - a redder shift, should indicate an older star but you cannot use the HR- Diagram to determine this.
... lattitude.... lattitude.... lattitude.... lattitude.
A parallax is a change in apparent position, when YOU move. In astronomy, it usually refers to the change in the apparent position of a star, due to Earth's orbit around the Sun. It's there, whether you "use" it or not, but it is quite useful to determine distances of stars that are relatively close to us - since the farther a star is, the smaller will the parallax be. Even for the nearest star after the Sun, the parallax is smaller than one second (1/3600 of a degree).
In the fictional world of Star Trek the device used to Teleport people is called the Transporter.
parallax
Wolf in the Fold
Mass
how dense the star is
Instruments such as a sextant or a quadrant can be used to determine the altitude of the North Star. By measuring the angle between the North Star and the horizon, navigators can determine their latitude.
Sextant.
a spectroscope is the instrument used to determine the chemical makeup of a star.
Yes, the Japanese name for the Pleiades star cluster is "Subaru." In Japanese culture, the cluster has been associated with various myths and is often depicted as seven stars. The name "Subaru" also means "to unite" or "to gather," reflecting the cluster's appearance. This name is widely recognized today, particularly as it is also used by the automotive brand Subaru.
The word that is used for a group of stars in the night sky is a star cluster.
Parallax is a method used to find the distances of stars.
celestial navigation
Subaru is a car manufacturer owned by Fuji Heavy Industries. The word Subaru is a Japanese word used to describe a star cluster.
The device used to determine the altitude of the North Star (Polaris) is called an astrolabe. An astrolabe is an ancient astronomical instrument that allows users to measure the angle of celestial objects above the horizon. By aligning the astrolabe with Polaris, one can determine their latitude based on the altitude of the star. This technique has been used for navigation and understanding one's position on Earth.
The Pleiades are the seven daughters of Atlas and Pleione, of which Alcyone is numbered among them being the Pleiad star-nymph of Mount Kithairon in Boiotia (central Greece) loved by the god Poseidon.