2022-11-07, 05:42 PM
(This post was last modified: 2022-11-07, 05:45 PM by theskyhound.)
Hello,
Phil is correct that if you switch to Expose for: Star, it will display the Faintest Star, Stellar Bloom magnitude, and the Brightest practical star. For example:
Faintest star: 23.2V
Stellar bloom magnitude: 9.2V
Brightest practical star (linear/not clipped): 14.9V
These calculations are independent of the spectral type and magnitude you enter for the star under Expose For. But they do depend on the sub exposure time being used for the exposures. Shorter sub exposure times will allow for brighter stars without clipping/blooming. What the above says is that stars brighter than about 9.2 magnitude will begin to bloom, and the brightest practical star is magnitude 14.9. This is given the sub exposure time being used to compute the results.
Note that when you use the Scheduler to schedule your project, you can right-click on the schedule one the right and click Report to generate a report for the specific observations of a project. That report also tells you the magnitude at which stars bloom and when they become non-linear (practical limit). This will be for the exact time and conditions on the Scheduler.
BTW there is an upcoming version 4.1 that will have expanded information available when selecting Exposure Goals for an Imaging Project that will help with this kind of decision.
Phil is correct that if you switch to Expose for: Star, it will display the Faintest Star, Stellar Bloom magnitude, and the Brightest practical star. For example:
Faintest star: 23.2V
Stellar bloom magnitude: 9.2V
Brightest practical star (linear/not clipped): 14.9V
These calculations are independent of the spectral type and magnitude you enter for the star under Expose For. But they do depend on the sub exposure time being used for the exposures. Shorter sub exposure times will allow for brighter stars without clipping/blooming. What the above says is that stars brighter than about 9.2 magnitude will begin to bloom, and the brightest practical star is magnitude 14.9. This is given the sub exposure time being used to compute the results.
Note that when you use the Scheduler to schedule your project, you can right-click on the schedule one the right and click Report to generate a report for the specific observations of a project. That report also tells you the magnitude at which stars bloom and when they become non-linear (practical limit). This will be for the exact time and conditions on the Scheduler.
BTW there is an upcoming version 4.1 that will have expanded information available when selecting Exposure Goals for an Imaging Project that will help with this kind of decision.
Clear skies,
Greg
Head Dude at Skyhound
Greg
Head Dude at Skyhound