Fun Stuff a tool

Through the eyepiece

My live captures, scaled to the true size you would see them through a Dobsonian. Pick a target, a telescope and an eyepiece.

Capture coming soon

I have not filmed this one yet, so there is nothing to show. I would rather leave it dark than fake it.

The dashed outline is its catalogue size at this magnification.

Drag, or use the arrow keys while the view has focus, to look around the field. Press 0 to recentre.

Telescope f/5 Dobsonian

Eyepiece

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About this target

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What is true here

  • The size is true. The circle is the real field of view of the telescope and eyepiece you picked, and the capture is scaled to its true angular size inside it.
  • The picture is a camera. Each clip is a real live capture from my own telescope and camera. Even so, a camera gathers more colour and faint detail than your eye will. Most nebulae look grey through the eyepiece.
  • Nothing is invented. Targets I have not filmed yet stay dark until I have.