Quote:
Originally Posted by Andy01
Hey Col, Nice work! 
Can you (in layman's terms) explain the most relevant numbers table in the second photo?  |
Quote:
Originally Posted by strongmanmike
He is imaging at an image scale of 0.4"/pix, his software is telling him the max FWHM (of that star with square around it) in the x direction, is 2.94pix, so we have 2.94 X 0.4 = 1.176" and a FWHM in the y direction of 2.58pix or 2.58 X 0.4 = 1.032"  so suggests, essentially pretty close to 1 arc sec seeing...very cool 
Great shot Col
Mike |
Mike got it in one. The highlighted numbers are the reference stars and the box says that the average of 6 stars have a diameter of approx 2.7 pixels at 0.4"/pixel or about 1.1" seeing.