Thread: How deep ?
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Old 31-12-2008, 11:55 PM
Ian Robinson
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Ian Robinson is offline
Join Date: Jan 2007
Location: Gateshead
Posts: 2,205
Originally Posted by Dennis View Post
Inspired by Jeff's recording of Sycorax (a moon of Uranus), I managed to record down to Mag 21.86 with a Celestron C9.25 at F6.3 with an SBIG ST7E CCD camera using 30 minute sub frames, shot from suburban Brisbane (7kms from CBD).

Using my Vixen 4 f9 refractor and SBIG ST7E CCD camera, with 15 minute sub frames, I have recorded stars down to mag 19.18.


That's pretty deep drilling .... with such small scopes .
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