Daily Archives: January 30, 2014

Rocket Streak and Star Trails

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Image Credit & Copyright: Mike Killian / AmericaSpace

 Fixed to a tripod and looking east across the Kennedy Space Center’s Turn Basin, a camera captured these star trails as a series of short exposures over a three hour period on the evening of January 23rd. Positioned just a few miles from Space Launch Complex 41 at Cape Canaveral Air Force Station, it also captured a spectacular night launch of an Atlas V rocket carrying NASA’s Tracking and Data Relay Satellite TDRS-L. Creating the trails, the apparent motion of the stars through the sky is just a reflection of the daily rotation of planet Earth on its axis. But that rotation is also the reason the rocket streak follows a path arcing east across the Atlantic. Launching toward the east, in the direction of Earth’s rotation, adds the rotation velocity to the rocket and reduces the fuel needed to reach orbit. A little ironically, TDRS-L is destined for a geostationary orbit. From there, 36,000 kilometers or so above the equator, it’s orbital period will match Earth’s rotation and the satellite will hang motionless in planet Earth’s sky.
NASA APOD 30-Jan-2014

NGC 2237: The Rosette Nebula

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The Rosette Nebula (also known as Caldwell 49) is a large, circular H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the starsof the cluster having been formed from the nebula’s matter. A survey of the nebula with the Chandra X-ray Observatory in 2001 has revealed the presence of very hot, young stars at the core of the Rosette Nebula. These stars have heated the surrounding gas to a temperature in the order of 6 million kelvins causing them to emit copious amounts of X-rays.

Imaging telescopes or lenses: Takahashi TOA-130
Imaging cameras: FLI ML 11002
Mounts: Astro-Physics Mach 1 GTO
Guiding telescopes or lenses: Takahashi TOA-130
Guiding cameras: Starlight Xpress Lodestar
Software: Adobe Photoshop CS6, Main Sequence Software Sequence Generator Pro, CCDStack2
Filters: Astrodon Narrowband Set (Ha OIII SII)
Accessories: 67 Field Flattener
Dates: Jan. 11, 2014
Frames: 58×1200″

Autor: Mark Striebeck

AstroPhotography of the day by SPONLI

30 January 2014

We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.