Angle Measure: angle to the horizon
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Stellarium |
Fix Released
|
Wishlist
|
gzotti |
Bug Description
I have an idea for the extention : Angle Measure
It would be very helpful to me if the tool would show the angle of inclination to the horizon.
I find objects in the sky which are very low visible with a technique called starhopping. That means I orientate myself on bright stars and try to define a distance and angle relativ to the object that I am looking for.
So far I am only guessing angles, so it would be great if Stellarium could also show me a number.
It is especially important to me because I look through a dubsonian telescope which shows stars horizontal and vertical upside down ! :)
I have seen a tool that can do this in the program GIMP that many are sure familiar with. I made a quick screenshot to visualize what I mean:
http://
In additon I noticed that i can not pan the horizon anymore when the angle measurement tool is active. Therefore I suggest that this tool becomes active while you hold down shift-key + draw a line with LBM.
Also from the Tool Observability Analysis I know it is possible to define a color for the text on screen with sliders. Maybe consider adding for Angle Measurement too since the code is already written or even combine the two for a more uniform interface. It's up to you :)
Best wishes
Solar
Thank you to introducing me to launchpad Alexander Wolf ( on IRC )
Related branches
- gzotti: Needs Resubmitting
- Alexander Wolf: Approve
-
Diff: 633 lines (+321/-53)6 files modifiedplugins/AngleMeasure/CMakeLists.txt (+1/-1)
plugins/AngleMeasure/ChangeLog (+6/-0)
plugins/AngleMeasure/src/AngleMeasure.cpp (+163/-42)
plugins/AngleMeasure/src/AngleMeasure.hpp (+36/-1)
plugins/AngleMeasure/src/gui/AngleMeasureDialog.cpp (+16/-5)
plugins/AngleMeasure/src/gui/angleMeasureDialog.ui (+99/-4)
Changed in stellarium: | |
importance: | Undecided → Wishlist |
tags: | added: plugin |
summary: |
- feature request for Angle Measurement + Angle Measure: angle to the horizon |
Changed in stellarium: | |
status: | Fix Committed → In Progress |
Changed in stellarium: | |
milestone: | 0.13.0 → 0.13.1 |
Changed in stellarium: | |
milestone: | 0.13.1 → none |
Changed in stellarium: | |
assignee: | Alexander Wolf (alexwolf) → gzotti (georg-zotti) |
milestone: | none → 0.13.1 |
Changed in stellarium: | |
milestone: | 0.13.1 → 0.13.2 |
Changed in stellarium: | |
status: | Fix Committed → Fix Released |
Just a point. I think this person means position angle - the angle north through east, where 0 deg is north.
It is simply calculated by PA = tan^-1 x (15 x Delta RA x cos Dec. / Delta Dec.)
With Delta RA in seconds (NOT arcsec), Dec= in arcsec
For separations larger than 2 degrees, the precision likely decreases.
Also you would also have to take precession into account.