FOV Calculator / Telescope simulator
- Aperture:
150
mm
- Focal length:
750
mm
- Focal ratio:
f/5.0
- Barlow/Focal reducer:
1
x
- Magnification:
10
x
- Aperture:
50
mm
- True FOV:
6
°
- Pixel size:
6.42
µm
- Image size:
3456
x
2304
- Sensor size:
22.2 x 14.8mm
- Binning:
1
x1
- Focal length:
26
mm
- Apparent FOV:
60
°
Results
FOV:
1.70° x 1.13°
Resolution:
2.46 "/pixel
Area:
1.92 sq°
Magnification:
10x
Focal length:
750mm
Focal ratio:
f/5.0
Day Month Year
The target is too small to be displayed at this scale
M42
Image credit: NASA, ESA, M. Robberto (STScI/ESA) and
The Hubble Space Telescope Orion Treasury Project Team
Image credit: NASA, ESA, M. Robberto (STScI/ESA) and
The Hubble Space Telescope Orion Treasury Project Team
Custom coordinates
Generate an image of any part of the sky from the STScI Digitized Sky Survey.
(May take up to a minute to generate and download.)
RA (degrees)
Dec (degrees)
Close
Search for target
Generate an image of any part of the sky from the STScI Digitized Sky Survey.
(May take up to a minute to generate and download.)
Target name:
Messier
Caldwell
Version history
v0.85- Fixed incorrect object scale with DSS images
v0.84
- Fixed Simbad query
v0.83.1
- Fixed QHYCCD cameras not loading
- Fixed some display errors
v0.83
- Added solar system objects
- Added notice if image is less than 2 pixels.
v0.82
- Updated kinetic.js
- Fixed minor display bugs
- Removed old barlow/binning selector
- Added some transitions to smooth movements and resizing
- Added calculated f-ratio
v0.81
- Updated jQuery
- Added area calculations
- Replaced FOV formula with higher accuracy version for wide angle lenses
v0.80
- First public release
Add new
New requests are no longer being accepted, until I work through the current list of 2647 requests.Please feel free to contact me if you find any bugs or have any comments or suggestions.