The star G1710 is currently at a distance of 62 lightyears and has an apparent visual magnitude of +9.7 . It is expected that, in a million years, GI710 will pass within one lightyear of the Earth. Calculate what the apparent visual magnitude of Gl10 will be at this time. Assume that the intrinsic brightness remains the same as it is today.
Stellar evolution
We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.
Red Shift
It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.
The star G1710 is currently at a distance of 62 lightyears and has an apparent visual magnitude of +9.7 . It is expected that, in a million years, GI710 will pass within one lightyear of the Earth. Calculate what the apparent visual magnitude of Gl10 will be at this time. Assume that the intrinsic brightness remains the same as it is today.
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