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en.wikipedia.org/wiki/Stellar_classification

In astronomy, stellar classification is the classification of stars based on their spectral ... This means that the simplified assignment of colors of the spectrum can be ... A0 denotes the hottest stars in the A class and A9 denotes the coolest ones. ...... OB Stars: An Investigation of the Space Distribution of Certain OB Stars and the ...

www.reference.com/science/color-coolest-star-d50968a1a32e1286

The coolest stars are red in color. A star's color gives visible information about its surface temperature. The hottest stars are blue, while white and yellow stars ...

www.universetoday.com/24715/red-stars

Dec 24, 2015 ... The color of a star comes from the temperature of its surface. The hottest stars are blue, cooler stars are white and yellow, and the coolest stars of all. ... Betelgeuse. Image credit: Hubble. Astronomy, Guide to Space ...

www.universetoday.com/24640/color-of-stars

Dec 24, 2015 ... The color of a star depends on its surface temperature. Our Sun's surface ... The coolest stars in the Universe are the red dwarf stars. These are ...

www.webexhibits.org/causesofcolor/18B.html

A star's color is critical in identifying the star, because it tells us the star's ... of the star start to strip away from the star and expand out into space as a nebula.

www.kidsastronomy.com/academy/lesson110_assignment2_7.htm

Star Color: Not all stars are the same color. ... These colors tell us the temperature of the star. The hotter a ... This means a hot star is blue and a cool star is red.

courses.lumenlearning.com/astronomy/chapter/colors-of-stars

This image, which was taken by the Hubble Space Telescope, shows stars in the ... On the other hand, cool stars emit most of their visible light energy at red ...

www.astronomy.com/news-observing/news/2010/01/astronomers%20discover%20cool%20stars%20in%20nearby%20space

Jan 29, 2010 ... The object, known as SDSS 1416+13B, is a brown dwarf with peculiar colors. Provided by the Royal Astronomical Society, United Kingdom.

www.atnf.csiro.au/outreach/education/senior/astrophysics/photometry_colour.html

Colour of Stars and colour index page for astrophysics option for NSW HSC Physics. ... a small section of a starfield in Sagittarius taken by the HST from space. ... There is little emission in the blue parts of the spectrum for cool stars - they ...

www.astronomytrek.com/interesting-facts-about-the-colour-of-stars

Here are some interesting facts about the color of stars: 1: Looking up at the ... 3: From hot to cool, stars can be grouped into spectral classes as follows: O – Blue