https://briankoberlein.com/2015/10/12/how-to-find-planets-in-the-shadows/ Brian Koberlein Tue, 19 Feb 2019 13:26:59 +0000 hourly 1 https://wordpress.org/?v=5.0.3 https://briankoberlein.com/2015/10/12/how-to-find-planets-in-the-shadows/#comment-3144 Wed, 14 Oct 2015 18:19:42 +0000 https://briankoberlein.com/?p=5344#comment-3144 One reason may be that you want the smallest feature of the mask to be many many multiples of the longest wavelength you wish to observe. The bigger the mask, the easier it is to control diffraction.

]]> https://briankoberlein.com/2015/10/12/how-to-find-planets-in-the-shadows/#comment-3142 Wed, 14 Oct 2015 00:28:26 +0000 https://briankoberlein.com/?p=5344#comment-3142 Folks have tried observations with chance occultations, but they don’t let you choose your targets.

]]> https://briankoberlein.com/2015/10/12/how-to-find-planets-in-the-shadows/#comment-3141 Tue, 13 Oct 2015 20:06:14 +0000 https://briankoberlein.com/?p=5344#comment-3141 Why can’t we usean asteroid or a KBO occultation to do same observations? It could be limited but much cheaper.

]]> https://briankoberlein.com/2015/10/12/how-to-find-planets-in-the-shadows/#comment-3140 Mon, 12 Oct 2015 22:10:18 +0000 https://briankoberlein.com/?p=5344#comment-3140 I’m not clear on why the shader has to be so far away. Obviously you can put something in very precise locations on the telescope mechanism itself, but it’s clear that doesn’t work or they’d do it. But why?

]]> https://briankoberlein.com/2015/10/12/how-to-find-planets-in-the-shadows/#comment-3138 Mon, 12 Oct 2015 17:29:03 +0000 https://briankoberlein.com/?p=5344#comment-3138 The cost would be about a billion dollars. It’s always a challenge to get large projects like this approved.

]]> https://briankoberlein.com/2015/10/12/how-to-find-planets-in-the-shadows/#comment-3137 Mon, 12 Oct 2015 16:45:45 +0000 https://briankoberlein.com/?p=5344#comment-3137 By using this project, we can really able to see a new world. It is a revolutionary thing. So, why this project is not approved ?

]]> https://briankoberlein.com/2015/10/12/how-to-find-planets-in-the-shadows/#comment-3136 Mon, 12 Oct 2015 15:46:58 +0000 https://briankoberlein.com/?p=5344#comment-3136 Has any consideration been given to having an adjustable starshade, rather than a fixed design, that configures to different situations as in different stars or different planetary orbits of the same star? Planets further out orbiting their stars need different shading, do they not? In a manner analagous to adaptive optics, if a starshade is going to be used in front of different targeted environments would an adaptive design be more of an advantage? If so, would that lessen the need to change the position of the starshade relative to the telescope to take into account different distances for different targets?

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