Photo reblogged from The Urania Project with 588 notes
“Four Planet Sunset” (via APOD: July 31, 2010)
Source: uraniaproject
Video with 18 notes
Star Size Comparison HD |
You are not the center of the Universe…
(by morn1415)
Source: youtube.com
Photo reblogged from It's Full of Stars with 130 notes
Yukon Aurora with Star Trails
Image Credit & Copyright: Yuichi Takasaka / TWAN / www.blue-moon.caExplanation: Fixed to a tripod, a camera can record graceful trails traced by stars as planet Earth rotates on its axis. But at high latitudes during March and April, it can also capture an aurora shimmering in the night. In fact, the weeks surrounding the equinox, in both spring and fall, offer a favorable season for aurora hunters. The possibilities are demonstrated in this beautiful moonlit vista from northwestern Canadian territory the Yukon. It was taken during the early morning of March 1, off theKlondike Highway about 60 kilometers south of Dawson City. To compose the picture, many short exposures were digitally combined to follow the concentric star trail arcs while including the greenish auroral curtains also known as the northern lights.
(via APOD)
Source: itsfullofstars
Photo reblogged from The Urania Project with 8 notes
APOD: 2009 August 7 - The Star Clusters of NGC 1313
Source: apod.nasa.gov
Photo reblogged from Cosmos with 11 notes
What does a star look like when it is forming? The prototypical example is the variable star T Tauri, visible as the bright orange star near the image center. The orange star centered in this remarkable telescopic skyview is T Tauri, prototype of the class of T Tauri variable stars. Surrounding T Tauri is a dusty yellow cosmic cloud named the Hind’s Variable Nebula (NGC 1555/1554). Over 400 light-years away, at the edge of a molecular cloud, both star and nebula are seen to vary significantly in brightness but not necessarily at the same time, adding to the mystery of the intriguing region. T Tauri stars are now generally recognized as young — less than a few million years old — sun-like stars still in the early stages of formation. To further complicate the picture, infrared observations indicate that T Tauri itself is part of a multiple star system. Surprisingly, due to a close gravitational pass near one of these stars, T Tauri may now be headed out of the system. The dramatic color image above captures a region that spans about 4 light-years.
Source: antwrp.gsfc.nasa.gov
Photo with 1 note
Stars, Dust and Nebula in NGC 6559
When stars form, pandemonium reigns. A textbook case is the star forming region NGC 6559. Visible above are red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them. The first massive stars formed from the dense gas will emit energetic light and winds that erode, fragment, and sculpt their birthplace. And then they explode. The resulting morass can be as beautiful as it is complex. After tens of millions of years, the dust boils away, the gas gets swept away, and all that is left is a naked open cluster of stars.
(via APOD)
Source: antwrp.gsfc.nasa.gov
Page 1 of 2
