Telescope Calculator Lite
Free App
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About Telescope Calculator Lite
Telescope Calculator is a handy astronomy calculator for the amateur astronomer and telescope user for Android.
Enter basic information about your telescope objective (diameter and focal length), and eyepiece (focal length and apparent field angle) and key viewing information is reported:
- Resulting Magnification
- True Field, angle of sky seen through the eyepiece
- Field Transit Time, time for object to cross field in eyepiece
- Exit Pupil, size of virtual aperture that must be smaller than your own eye’s pupil
- Resolving Power, angular resolution
- Power Per Inch of Aperture
Visit our website to give comments, feedback and improvement ideas!
Get full version (‘Telescope Calculator’) for:
- No ads
- Save values capability
Enter basic information about your telescope objective (diameter and focal length), and eyepiece (focal length and apparent field angle) and key viewing information is reported:
- Resulting Magnification
- True Field, angle of sky seen through the eyepiece
- Field Transit Time, time for object to cross field in eyepiece
- Exit Pupil, size of virtual aperture that must be smaller than your own eye’s pupil
- Resolving Power, angular resolution
- Power Per Inch of Aperture
Visit our website to give comments, feedback and improvement ideas!
Get full version (‘Telescope Calculator’) for:
- No ads
- Save values capability
All Application Badges
Free
downl.
downl.
Android
1.5+
1.5+
Android app
App History & Updates
What's Changed
Introducing Night Mode!
Added custom keypad to support night mode.
Added Barlow Lens option.
Added twitter button to about.
Allow move to SD card.
Introducing Night Mode!
Added custom keypad to support night mode.
Added Barlow Lens option.
Added twitter button to about.
Allow move to SD card.
What are users saying about Telescope Calculator Lite
H
by H####:
by H####:
Useful on my Android...takes place of similar program I have for Windows. Night vision great plus. Ideas for more features. -add ability to find FOV for various CCD chips and different focal length scopes -Save previous inputs to save extra typing....just change one option like eyepiece focal length
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by D####:
by D####:
I inputted the info for my spotting scope and it tells me my exit pupil is a mere 2.7mm! Its actually about 20-25mm!
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by D####:
by D####:
This is developer: check out latest release!
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by D####:
by D####:
Good call on the night mode option
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by D####:
by D####:
TELESCOPES
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by D####:
by D####:
Five star
K
by K####:
by K####:
Useful to understand how much of the sky you see with your gear.
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by D####:
by D####:
Nice to know info... cool...
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by D####:
by D####:
This is crap! It needs instructions.
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by D####:
by D####:
TANKYOU
by D####:
Very useful app. Would be better if last entered parameters (objective diameter.,...etc) are saved on pressing 'submit values' and then exit the program, so that these parameters don't need to be re-entered each time the program is activated. .... understand that this load/save feature is available in the pay version, but seemed that this is not compatible with my device (Samsung Galaxy SII). Wonder why???