News tagged with red giants

Related topics:

Retired star found with planets and debris disc

(Phys.org) —ESA's Herschel space observatory has provided the first images of a dust belt – produced by colliding comets or asteroids – orbiting a subgiant star known to host a planetary system. The ...

Apr 09, 2013
4.8 / 5 (6) 3 | with audio podcast

A New Method of Estimating Stellar Distances

(PhysOrg.com) -- The star Chi Cygni is located about 550 light-years away, in the direction of the constellation of Cygnus the Swan. It is a notable star because, unlike the sun which still burns hydrogen ...

Dec 21, 2009
4.4 / 5 (15) 2

Astronomers spot cosmic dust fountain

(PhysOrg.com) -- Space dust annoys astronomers just as much as the household variety when it interferes with their observations of distant stars. And yet space dust also poses one of the great mysteries of ...

Feb 05, 2009
4.6 / 5 (13) 0

The peanut at the heart of our galaxy

Two groups of astronomers have used data from ESO telescopes to make the best three-dimensional map yet of the central parts of the Milky Way. They have found that the inner regions take on a peanut-like, ...

Sep 12, 2013
4.4 / 5 (9) 0 | with audio podcast

Gravity-bending find leads to Kepler meeting Einstein

(Phys.org) —NASA's Kepler space telescope has witnessed the effects of a dead star bending the light of its companion star. The findings are among the first detections of this phenomenon—a result of Einstein's ...

Apr 04, 2013
5 / 5 (15) 16 | with audio podcast

Young, hot and blue: Stars in the cluster NGC 2547

(Phys.org) —This pretty sprinkling of bright blue stars is the cluster NGC 2547, a group of recently formed stars in the southern constellation of Vela (The Sail). This image was taken using the Wide Field ...

Mar 27, 2013
2 / 5 (2) 0 | with audio podcast