|
|
|
|
|
|
|
|
Further Information |
|
|
|
|
|
|
|
|
|
|
Physical Environment > Red Giant |
 | Glow in the Dark Tubs of Stars: Medium Stars 400-piece TubClick for detailsWe've always been a little envious of kids whose ceilings have those tiny stars and planets that simulate a night sky in lovely green glow-in-the-dark phosphorescence. Then we saw the stars that come in this plastic tub--each an inch-and-a-half across--and we knew who the victors of this particular "star wars" were going to be. Each five-pointed celestial body comes with a button of nontoxic adhesive stuck in its center, strong enough to attach with a simple press to a wall or ceiling. The only problem you may have is trying to figure out where to put all 400 of them! |
 | Redshift 3Click for detailsWhat star is that? Is that a star or a planet? When will the moon be exactly full? Redshift will tell you this and much much more. This amazing program puts the solar system on your PC. Fly around, watch the skies, see a eclipse any time you want, identify stars and planets at any place on Earth. Wonderful.
Features: --
|
They add that many of them are doomed to be gobbled up by their parent stars.
Hubble Space Telescope astronomer Mario Livio detected evidence that some giant stars once possessed giant planets that have been swallowed up. The devouring stars radiate excessive amounts of infra-red light, spin rapidly, and contain a higher than expected amount of the element lithium.
About 8% of the stars in our galaxy display these characteristics, according to Dr Livio. This is consistent with estimates of close-orbiting giant planets.
An ageing solar-type star will expand to a red giant and in the process will engulf any close-orbiting planets. If the planets are like Jupiter they will have a profound effect on the red giant's evolution.
Physical Environment > Red Giant |
|
|
|
|
|
Further Information |
|
|
|
|
|
|
|
|
|
|
