Space Time
What your telescope will actually show
Tell it your telescope and eyepiece or camera, and it frames galaxies, nebulae and planets against real sky imagery at your equipment's true scale. You know what fits before you set anything up outside.
🚀 Open the FOV simulator Free · Scope, eyepiece & sensor · Real imagery
See the real field of view
Enter your telescope, eyepiece or camera sensor and the true field of view gets drawn over real sky imagery. You can tell at once whether the Andromeda Galaxy spills out of frame, how small the Orion Nebula will sit in a wide eyepiece, and which rotation gives the better composition.
Plan your astrophotography
Framing through a camera sensor at the right scale and rotation answers the practical questions before you're out in the dark. Which focal length? Is one frame enough, or does this target need a mosaic? Settle it from the couch.
FAQ
How big will an object look in my scope?
The FOV simulator overlays your scope/eyepiece/sensor frame on real imagery, so you see the true size and fit.
Does it support cameras?
Yes. Frame through a camera sensor at the right scale and rotation for astrophotography planning.
Can I frame a specific object?
Pick a deep-sky target and see it at your equipment's true scale against real imagery.
Is it free?
Yes. In your browser, no account, no download.