red dwarf

A red dwarf is a small and relatively cool star on the main sequence, either late K or M spectral type. Red dwarfs range in mass from a low of 0.075 solar masses (the upper limit for a brown dwarf) to about 50% of the Sun and have a surface temperature of less than 4,000 K.

For more information about red dwarf check the Wikipedia article here

ZME Science posts about red dwarf

Black hole ripping apart a red dwarf that’s orbiting at records speeds

Mon, Mar 25, 2013

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ESA’s XMM-Newton space telescope has found a star and a black hole that orbit each other at the whopping rate of once every 2.4 hours. Basically, the star orbits the black hole at 2,000,000 km/hr. The black hole here is 3-4 times heavier than the Sun, while the red dwarf has a mass just 20% [...]

Earth-like planets closer than previously thought. Nearest one might lie 13 light-years away

Mon, Feb 11, 2013

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After researchers surveyed data from the Kepler mission tasked with identifying possibly habitable planets outside our solar system they found that 6% of red dwarfs – the most common type of planets – are within this zone. This new adjustment would mean that the nearest Earth-like planet might lie just 13 light years away. Astronomers [...]

How many Earth-like planets are there in the Milky Way? Billions, according to astronomers

Wed, Mar 28, 2012

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One of the most outstanding dreams astronomers and other scientists hope to accomplish is to someday encounter proof that extraterestrial life exists. Intelligent life might be extremely far off, however microbiological life should without a doubt be present elsewhere other than our planet or solar system. For life to blossom, however, the right conditions have [...]

Physicists create a supernova in a jar

Sat, Dec 4, 2010

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A supernova is a stellar explosion of cosmic proportions, that often can outshine the entire galaxy it is located in, before fading away in a matter of weeks or months. During this short period however, supernovae emit as much energy as the Sun emits during its entire life span – it’s the same kind of [...]

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