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Latest Variable star Stories

c9a778986365f281031ebbcb36b4c5c5
2011-01-10 13:30:00

A deep survey of more than 200,000 stars in our Milky Way galaxy has unveiled the sometimes petulant behavior of tiny red dwarf stars.

42db470519956e7d7d10e9eb2969ec811
2010-11-24 12:50:00

By discovering the first double star where a pulsating Cepheid variable and another star pass in front of one another, an international team of astronomers has solved a decades-old mystery.

a032652b36ab66241b73a3978837b4211
2009-12-16 09:05:45

A team of Chinese astronomers have discovered a giant planet close to the exotic binary star system QS Virginis.

52b6e04ea486fd86b7744aa05a59e9a71
2009-12-15 09:55:00

About 550 light-years from Earth, a star like our Sun is writhing in its death throes.

ecfc4d40d06e561c7215b3ed6c2a5a1b
2009-12-07 07:30:00

An extensive study made with ESO’s Very Large Telescope deepens a long-standing mystery in the study of stars similar to the Sun.

2009-11-05 09:45:27

This week, Astronomy & Astrophysics publishes a somewhat unusual research article because it is co-authored by German high-school students.

bfee3fc89500505af6b838f397dbfa751
2009-06-08 13:25:00

Ohio State University researchers have found a way to measure distances to objects three times farther away in outer space than previously possible, by extending a common measurement technique.

7f8764533a80bfef1ad103bfea89a30c1
2009-05-07 09:13:00

Whatever dark energy is, explanations for it have less wiggle room following a Hubble Space Telescope observation that has refined the measurement of the universe's present expansion rate to a precision where the error is smaller than five percent.

1e57127d7cbed58bcd46a2c80eaf3cc11
2008-09-22 08:00:00

New, very precise measurements have shown that the rotation of the Milky Way is simpler than previously thought.

1f33dd113b14821be731937964b2616f
2008-05-01 12:29:26

Discovery helps solve riddle of where the carbon white dwarfs come from, and what happens to their hydrogen and helium


Latest Variable star Reference Libraries

6_f1577ee462b741c03ef6a7d23d2cd6905
2004-10-19 04:45:43

Variable Star -- Most stars are of nearly constant luminosity. Our own Sun is a good example which goes through practically no measurable variation in brightness. There are, however, stars which do vary in brightness, called variable stars. They fall into two main groups: Intrinsic variables These are stars which have intrinsic variations in brightness, that is the star itself gets brighter and dimmer. There are many types of intrinsic variables, the main types being: -- Mira...

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Word of the Day
donative
  • A gift; a largess; a gratuity; a present; a dole.
The word 'donative' comes from a Latin word meaning 'to give'.
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