This plugin for MaximDL allows one to easily measure the brightness of the sky background given a star of known magnitude.
The reference star selected should not be saturated and should have a large enough clear background area around it to allow a good measurement of the background level.
A raw image which has only had dark/flat calibration carried out should be used. Any non-linear stretching will invalidate the results.
Once a star has been identified on the image to be measured and the
magnitude of that star determined, launch the plugin and enter the star
magnitude in the resulting dialogue box.
Click the OK button then click on the center of the reference star.
The plugin will then calculate and display the sky background brightness level in units of magnitude per square arcsec.
v1.0 - Initial release.
v1.1 - Fix selection box left after star selection.
v1.2 - Use plate scale from plate solve if available.
If you download this to give it a go, please post feedback on the MaximDL
Yahoo group, or email me directly at: winfij_AT_gmail_DOT_com
One final note - if you have any errors, please note the exact error messages and let me know!