Archive for April, 2010

DS9 refuses radians as input

By grigoris | Filed in Astronomy

At the region file help page of ds9 we read that we can define position arguments in a region file by placing the numbers along with the right character, e.g. 17.845d for degrees, 16.234p for pixels. Even though that radians are stated to be working (by placing the r character, like 12.123r), that finally DOES […]

A previously published procedure for processing DSLR images with IRIS was somehow complicated. Though it may be more accurate since all the necessary steps for processing images are given, the procedure presented here seems to give the same results without making so much trouble! Since we have a bright target and small total exposure times […]