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Messier 33: Difference between revisions
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<ref>[http://en.wikipedia.org/wiki/Triangulum_Galaxy Triangulum Galaxy]</ref> | <ref>[http://en.wikipedia.org/wiki/Triangulum_Galaxy Triangulum Galaxy]</ref> | ||
==Moving towards Andromeda== | |||
In 2006, a group of astronomers announced the discovery of an eclipsing binary star in the Triangulum Galaxy. By studying the eclipses of the stars, astronomers were able to measure their sizes.he Triangulum galaxy is a source of H2O maser emission.[26] In 2005, using observations of two water masers on opposite sides of Triangulum via the VLBA, researchers were, for the first time, able to estimate the angular rotation and proper motion of Triangulum. A velocity of 190 ± 60 km/s relative to the Milky Way was computed, which means Triangulum is moving towards Andromeda and suggesting it may be a satellite of the larger galaxy (depending on their relative distances and margins of error).[7] In 2004, evidence was announced of a clumpy stream of hydrogen gas linking the Andromeda Galaxy with Triangulum, suggesting that the two may have tidally interacted in the past. This discovery was confirmed in 2011. | |||
==Session References== | ==Session References== | ||