Wednesday, January 19, 2011
Schroter's Valley is the greatest lava formation on the Moon. It is 160km long, about 11km wide and 1 km deep. It looks like canyons on Earth. You can observe it even with a small telescope, only 25 km north of Herodotus. It begins with a small crater called "Cobrahead". Note: You need a pair of 3D glasses to see the stereoscopic astrophoto above. Here is a guide, how to make one yourself: http://www.astrodigital.net/imageprocessing/simple_3d/simple_3d.html
Sunday, January 16, 2011
HaRGB Composite: Lern how to compose a color photo from its Ha-Red-Green-Blue components.Please find attached a zip file with the complete data set of an astrophoto of the Tadpoles nebula in Auriga. All processing steps and the corresponding results are organized in separated directories. Useful tips about deep sky photo processing are shown here and here. Download it right now for free. Just click on the following link: NGC1893 Photo processing steps for educational purposes.zip (packed file size: 68 MB). You need special astrophotographic software to process this file. Try Maxim DL - (Windows, 30 days trial version available) or CCDOps - (Mac / Windows, freeware) or CCDSoft - (Windows). The raw data have been gained over three nights from the author's backyard observatory.
Friday, January 14, 2011
Sunday, January 09, 2011
Thursday, January 06, 2011
This is a GSO 10" RC telescope on a Celestron CGE Pro mount. The camera is a SBIG ST8300 connected via a selfmade custom adapter to a STL 8 positions 2" filter wheel equiped with Astrodon L,R,G,B,NIR and Baader Ha,SII,OIII filters. The autoguider is a Starlight Lodestar. This system belongs to a friend.
Tuesday, January 04, 2011
This is the Sun Eclipse on January, 4th 2011 at 9:18 o'clock as observed from Stuttgart, Germany. See also Wikipedia.
In German: Das ist eine Aufnahme von der Sonnenfinsternis am 4 Januar 2011 um 09:18 Uhr aus Stuttgart. Siehe auch Wikipedia's Artikel.