2019-07-27, 08:26 PM
Hi Greg,
A clarification please, I'm not sure where I'm thinking incorrectly.
Last night I took this pic to see if it shows a very distant quasar (HS 1946+7658 and it did). [/url][url=http://nova.astrometry.net/user_images/2963128#annotated]http://nova.astrometry.net/user_images/2963128#annotated. The object is not relevant now, but it is is the orientation reported by astrometry.net: "Up is 311 degrees E of N", so up is 49 degrees west of N.
I visually matched the image with the atlas using those 3 resolved stars, small details match as well. Attached is a screenshot of the Interactive Atlas view. "Up" in the image is towards up-left My question is about the orientation arrows shown in the lower-left corner. In reference to those arrows, up in the image it between N and E, so it's east of N. I'm sure I'm doing something wrong but don't know what. The flip and mirror buttons are not enabled. I'm also attaching the camera view to show it matches the picture.
And a related question: in the same Interactive Atlas view, when I right click the circle in one corner of the rectangle defining the camera view and enter a rotation angle, the camera rectangle does not rotate. When I had a camera view also open, sometimes (but just sometimes) the camera view will be updated when I entered a new rotation angle. I haven't figured out the pattern, when it was updated and when not. Any insight on this? Am I using it incorrectly? My intended use was to take the rotation angle specified by astrometry.net and enter it there, rather than visually matching the picture with the atlas.
Thanks!
[attachment=354]
[attachment=355]
A clarification please, I'm not sure where I'm thinking incorrectly.
Last night I took this pic to see if it shows a very distant quasar (HS 1946+7658 and it did). [/url][url=http://nova.astrometry.net/user_images/2963128#annotated]http://nova.astrometry.net/user_images/2963128#annotated. The object is not relevant now, but it is is the orientation reported by astrometry.net: "Up is 311 degrees E of N", so up is 49 degrees west of N.
I visually matched the image with the atlas using those 3 resolved stars, small details match as well. Attached is a screenshot of the Interactive Atlas view. "Up" in the image is towards up-left My question is about the orientation arrows shown in the lower-left corner. In reference to those arrows, up in the image it between N and E, so it's east of N. I'm sure I'm doing something wrong but don't know what. The flip and mirror buttons are not enabled. I'm also attaching the camera view to show it matches the picture.
And a related question: in the same Interactive Atlas view, when I right click the circle in one corner of the rectangle defining the camera view and enter a rotation angle, the camera rectangle does not rotate. When I had a camera view also open, sometimes (but just sometimes) the camera view will be updated when I entered a new rotation angle. I haven't figured out the pattern, when it was updated and when not. Any insight on this? Am I using it incorrectly? My intended use was to take the rotation angle specified by astrometry.net and enter it there, rather than visually matching the picture with the atlas.
Thanks!
[attachment=354]
[attachment=355]