the stars nearest Earth
red dwarf is the most nearest star.
The H-R diagram constructed from the data on the brightest stars differs from the diagram constructed from data on the nearest stars because the brightest stars are typically more massive and have higher luminosities, while the nearest stars may include a mix of different masses and luminosities. This leads to a different distribution of stars in the diagram, with the brightest stars clustering in different regions compared to the nearest stars.
No, they are mostly red dwarf stars.
Sun
Some of the nearest stars to Earth include Proxima Centauri, Alpha Centauri A and B, Barnard's Star, and Wolf 359. These stars are all within a few light years of our solar system.
The stars in the Toliman (aka alpha Centauri) system.
Yes. The NEXT nearest star is about 265 thousand times farther from usthan the sun is, and all the other stars are even farther away.
There are no stars that I am aware of named "SMN". The nearest star to Earth is Proxima Centauri, and the next-closest stars are the binary pair Alpha Centauri and Beta Centauri.
Yes it is done with telescopes, (the nearest stars are quite faint). Teh stars still have very little detail because they are so far away.
Our sun is the nearest star to Mars. Alpha Centauri is the next nearest at 4 light years.
Yes, some of the 20 nearest stars are white dwarfs. For example, Sirius B, the companion star to Sirius A, is a white dwarf. Among the 20 brightest stars, Sirius B is the only white dwarf.