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Old 01-02-2014, 11:12 PM
Rob_K
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Join Date: Oct 2006
Location: Bright, Vic, Australia
Posts: 2,187
Quote:
Originally Posted by malclocke View Post
A bit of nova trivia - given we are now on around day 60, and that we have observed expansion velocities (if that is what they are) of around 2000 km/s, the ejecta should now have a radius of around 70 AU, almost twice the orbit of Pluto!

Using the small angle approximation (θ = D x 206265/d, where D is the size of the object and d is the distance), this figure combined with the estimated distance from the ATCA of 3.3 kpc, this gives an angular size of 0.04 arcseconds.

Anyone fancy trying direct imaging
LOL, even 0.04 arcminutes is still a couple of orders of magnitude too small for anything I've got!

Cheers -
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