DG CVn, a binary consisting of two
red dwarf stars shown here in an artist's rendering, unleashed a series of powerful flares seen by NASA's Swift.
Not exact matches
Named PH1, the planet goes around two of the four
stars,
shown close - up here: One is a yellow - white F - type
star that is slightly warmer and more luminous than our sun; the other, at the 11 o'clock position, is a
red dwarf, cooler and dimmer than the sun.
It orbits a dim,
red dwarf star (
shown at left) about 200 light - years from Earth.
This artist's conception
shows a hypothetical alien world orbiting a
red dwarf star.
Alpha Centauri (
shown with the arrow) is a system of three
stars, one of which is the
red dwarf Proxima Centauri.
Cartoon
showing how efficient planet migration around
red dwarfs lead to the more observed planets than around sunlike
stars, even though the disk is lower in mass and forms fewer planets in total.
Perhaps the least known
star in the
Red Dots campaign, Ross 154, is a rapidly rotating M
dwarf star that
shows elevated activity levels and and flares on its surface.
This diagram
shows the difference between the habitable zones surrounding A (hot), G (the sun) and M (
red dwarf)
stars.
This artist's impression
shows the planet Proxima b orbiting the
red dwarf star Proxima Centauri, the closest
star to our solar system — «only» 4.25 light - years away.
There are roughly 1400
star systems within this volume of space containing 2000
stars, so this map only
shows the brightest 10 % of all the
star systems, but most of the fainter
stars are
red dwarfs.
The results
show that even though
red dwarfs are much more numerous, they have a narrower habitable zone than yellow
dwarfs, so our existence around a
star like the sun is actually to be expected.
NASA's Kepler space observatory has
shown that almost all
red dwarf stars host planets in the range of one to four times the size of Earth, with up to 25 percent of these planets located in the temperate, or «habitable,» zone around their host
stars.
Researchers say follow - up observations using NASA's Hubble Space Telescope will be able to
show how much radiation from the
red dwarf star hits LHS 1140b.