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250th anniversary of Halley recovery
Paolo
post Nov 2 2008, 12:47 PM
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No one seems to have noticed, but next December 25 marks the 250th anniversary of Palizsch's recovery of comet Halley, the first time a comet was predicted to return
http://cometography.com/pcomets/001p.html
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dvandorn
post Nov 2 2008, 11:17 PM
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You know, that bring up a good semantic nit -- is it only "photographic" if it involves film? Is there another term if the light is recorded via CCDs and not film? Electronic light capture vs. photographic light capture vs. biologic (i.e., eyeball) light capture? I guess in that case, "visual" contact would only apply to the third of those options.

I find it interesting that by 2061 it's possible that Halley might not again be lost -- that we may have instruments sensitive enough to maintain electronic (if not "visual") contact all the way out to its next aphelion and back.

-the other Doug


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“The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Posts in this topic
- Paolo   250th anniversary of Halley recovery   Nov 2 2008, 12:47 PM
- - ElkGroveDan   I'll feel really old when they recover it agai...   Nov 2 2008, 03:20 PM
- - dvandorn   Isn't Halley supposed to return in 2061? It...   Nov 2 2008, 05:52 PM
- - ElkGroveDan   True, but visual recovery of it will occur some ti...   Nov 2 2008, 06:02 PM
- - dvandorn   Yeah, very true. Well, last time Halley was spott...   Nov 2 2008, 06:57 PM
|- - siravan   QUOTE (dvandorn @ Nov 2 2008, 01:57 PM) B...   Nov 2 2008, 07:11 PM
|- - mcaplinger   QUOTE (dvandorn @ Nov 2 2008, 10:57 AM) W...   Nov 2 2008, 08:59 PM
- - Paolo   By the way, Halley is still being tracked telescop...   Nov 2 2008, 07:03 PM
- - dvandorn   QUOTE (mcaplinger @ Nov 2 2008, 03:59 PM)...   Nov 2 2008, 09:50 PM
|- - ugordan   QUOTE (dvandorn @ Nov 2 2008, 10:50 PM) W...   Nov 2 2008, 09:51 PM
- - dvandorn   I have a feeling that the Wikipedia reference is f...   Nov 2 2008, 09:55 PM
|- - ugordan   Hmm, you might have a point there. Either way, pho...   Nov 2 2008, 10:32 PM
|- - mcaplinger   QUOTE (dvandorn @ Nov 2 2008, 01:55 PM) M...   Nov 2 2008, 11:10 PM
- - dvandorn   You know, that bring up a good semantic nit -- is ...   Nov 2 2008, 11:17 PM

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