Re: A Wile Speculation

[Fraser Farrell <fraser@trilobytes.com.au>]

Tom Droege wrote:
>
> Is anyone else but tass taking dual channel data?


Well-executed nova and supernova patrols routinely obtain confirming images 
of any new dots found. As well as check for known variables, reflections off 
satellites, "stationary" asteroids, dirt on/in the camera, etc. But many of 
these followup images are delayed by hours - or days - from the original 
image. Relatively few patrols have the resources to run simultaneous imaging 
from a second parallel camera.

All of the big gravitational lensing surveys (MACHO, OGLE etc) image in at 
least 2 colours. This helps them distinguish a lensing event from the swarms 
of stars brightening for more mundane reasons. But I don't know if they take 
their images _simultaneously_ in both colours, or use a filter wheel for 
consecutive shots.

The Mark IV may be setting a benchmark in this field?


cheers,


-- 

Fraser Farrell

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