Feb 23
Messier 106 (also known as NGC 4258) is a spiral galaxy in the constellation Canes Venatici. It was discovered by Pierre Méchain in 1781. M106 is at a distance of about 22 to 25 million light-years away from Earth. It is also a Seyfert II galaxy. Due to x-rays and unusual emission lines detected, it …
Aug 16
A first test to make a mosaic in Pixinsight. Not too bad, being this a 2-panel mosaic of Luminance images – made up of just a few exposures. [table caption=”Image data”] Target, NGC 6992 (mosaic) Date, 18 July; 2 and 15 August 2014 Images, Luminance; two panels Optics, Cassegrain f/9 20″ @3550mm Mount:, ASA DDM85XL …
Aug 02
Usually most privately used observatories use a straight pier – made either out of concrete or steel. A problem that might arise is that, in certain positions (usually pointing towards the zenith and/or the meridian), the scope may hit the pier. We also experienced this problem, so we had to forget about imaging around the …
