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NEO 2006 VV2 - a tumbler or poor auto guiding?
Hello,
After a long wait, I eventually managed to get out and image NEO 2006 VV2 last night (5th April) from Brisbane. I grabbed 50 x 60 sec exposures with the Mewlon 180 F12 at prime Focus using the SBIG ST7E ccd camera.
There was an almost full Moon nearby and the individual sub-frames were a little noisy due to the relatively slow F12 system and 60 sec exposures. I plonked the tripod down in it’s worn markings on the lawn, and completely forgot to polar align for the series of auto guided exposures!
A WO 80mm F7 refractor with an Orion Star Shoot and PHD Guiding provided the auto guiding capability on the EM200 mount.
I’m not sure about the wiggly path of the asteroid – is this an auto guiding artefact or a property of 2006 VV2?
Cheers
Dennis
Asteroid 2006 VV2, Mag 12.1
Brisbane, QLD, Australia.
Start: 05 April 2007, 11:41pm AEST (01:41 UTC)
End: 06 April 2007, 12:45am AEST (02:45 UTC)
Centre of ccd image is at: 10h 55m 02.10s -39d 41m 40.72s
Image scale of 0.78 arc sec / pixel
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