The colour of a star is an indication of its ________________.

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Answer 1

The color of a star mostly indicates a star's temperature, and it can also suggest the star's age. Class O stars, which are blue in color, are the hottest, and class M stars, which are red in color, are the coldest.

Answer 2

The color of a star mostly indicates a star's temperature, and it can also suggest the star's age. Class O stars, which are blue in color, are the hottest, and class M stars, which are red in color, are the coldest.

The colour of a star is an indication of its ________________.

distance from the sun

luminosity

distance from the earth

temperature

The color of a star mostly indicates a star's temperature, and it can also suggest the star's age. Class O stars, which are blue in color, are the hottest, and class M stars, which are red in color, are the coldest.

During the recent Venus transit (June 2012), the planet appeared as a tiny black circle moving on the Sun. The black colour on the Sun is because the planet _________.

When an astronaut makes a visit to Moon then he perceives the colour of the outer space as

The planet Neptune appears blue in colour.

The presence of methane gas in the atmosphere of Neptune is responsible for its colour.

The planet Neptune appears blue in colour.

Whats the difference between a main sequence star and a neutron star?

When does a low-mass star become a giant star?