Comments on: From one moon to another

By: LRO First Light images of the Moon! | Bad Astronomy | Discover Magazine

Thu, 02 Jul 2009 20:31:47 +0000

[...] If you liked this article, you might like this one as well where I dissect an image of the Moon taken from the space [...]

By: Steve V

Steve V — Tue, 30 Jun 2009 16:26:40 +0000

I was wondering about number 14, the picture of the impact crater in Arizona. I was under the impression that all impact craters were circular, but this appears to be more of a square (squarcular?). Is this do to the angle of the ISS over the ground, time, misinformation that I have?

thanks!

By: Robert Carnegie

Robert Carnegie — Tue, 30 Jun 2009 16:06:55 +0000

Dr Plait’s personal physician, Conrad Murray – as recommended by Michael Jackson – has him on a special exercise and painkiller regime which should enable him to get through the arduous experience of criticising [Impact]. Plus taking over Michael’s series of concerts in London.

By: Mal

Mal — Tue, 30 Jun 2009 04:38:13 +0000

Awesome series of photos, thanks for the heads up BA.

I think you need to do a blog entry on the last one though, explaining the reason the stars can be seen. There is a similar picture of the aurora circulating the web that has starts visible in it (I think it was on APOD one day), and I saw a moon hoaxer website using it as an example where we should be able to see stars blah blah…

From memory it was just due to longer exposure time, and you could tell because the clouds were fuzzy.

By: MarkAH

MarkAH — Tue, 30 Jun 2009 01:29:44 +0000

# 16

See crop cirlces are real….
what??

circular crops?? never mind

By: DrFlimmer

DrFlimmer — Mon, 29 Jun 2009 18:56:16 +0000

@ #34 Stone Age Scientist

Although you are right, the earth gravitational influence on things is strong enough that it causes a measurable effect of “time delay” on satallites. In fact, the GPS satallites must all correct for effects of SR and GR in order to give a correct position!
Without GR GPS would lead you anywhere but not where you want to

By: Acronym Jim

Acronym Jim — Mon, 29 Jun 2009 17:10:00 +0000

@16

Nit: the moonlight gets bent downward as it enters Earth’s atmosphere, not upward. If it were truly upward, the moon would appear stretched, not squashed.

Double-nit: if one views the pic from a land-dweller’s perspective (head tilted to the left), the Great Grey Egg does “appear” stretched.

Does a double-nit cancel out a single-nit?