At the Limit of Diffraction (Image Credit & Copyright: Yuri Beletsky ,Las Campanas Observatory, Carnegie Institution)
Explanation: Did you ever want to just look through the eyepiece of a large telescope in space? If you could, you would see a sharp view that was diffraction limited. Unaffected by atmospheric blurring that ultimately plagues earthbound observers, the angular resolution of your diffraction limited view would be determined only by the wavelength of light and diameter of the telescope lens or mirror; the larger the diameter, the sharper the image. Still, in this working earth-based snapshot a new active adaptive optics system (MagAO) is being used to cancel out the atmospheric blurring in a visual observation of famous double star system Alpha Centauri. Testing the system at the eyepiece of the 6.5 meter diameter Magellan Clay Telescope at Las Campanas Observatory, astronomer Laird Close is enjoying a historic diffraction limited view (inset) and the wide apparent separation of the close binary star system ... without traveling to low earth orbit. Image and caption credit
That is some amazing resolution. For those who don't know: the 4" in the image is shorthand for 4 arcseconds. There are 60 arcseconds in an arcminute and 60 arcminutes in 1 degree. It's a tiny separation.
"Other job markets may lay claim to the title, but astronomy is actually the world's oldest profession." - Phil Plait
syzygy: For single or a few placemarks coordinates still fine of course!
Jun 18, 2022 14:24:09 GMT
syzygy: Yup! Sorry everyone for the attachment issue! Hope will be solved soon! Until links to kmz files stored elsewhere is can be a solution...
Jun 17, 2022 18:22:19 GMT
RaveyThirteen: So... I just tried to add a .kmz of some new finds and saw that nasty error message. Should I just hold onto it til the space issue is sorted?
Jun 17, 2022 6:57:05 GMT
typsish: As far as I know, it should be foldable. But check the rules of the company you are flying with. They have the specific requirements mentioned in the luggage section. And if the stroller you have now doesn't fit their requirements, check the article on new
Jun 15, 2022 14:05:38 GMT
diane9247: I don't know what to do about the "space limit" thing. I got a post ready, then couldn't upload the small file. I am losing eyesight, so not sure I can even post anymore! 😵💫(Pinned unfinished post last night, but it didn't save.)
Jun 14, 2022 7:08:26 GMT
willi1: GE Imagery Date: Yes, I noticed it too. And I thought it was something of an attitude on my part.
Jun 8, 2022 9:29:04 GMT
SpiderX22: In regards to this error - on my forum posts/threads -> I can start compiling attached files into one kml collection to slim down attachment numbers
Jun 6, 2022 15:32:37 GMT
SpiderX22: Also - a heads up: Error: This forum has exceeded its attachment space limit. Your file cannot be uploaded.
Jun 6, 2022 15:31:44 GMT
SpiderX22: Anyone else notice that new Google Earth imagery doesn't have a date anymore?
Jun 6, 2022 15:01:28 GMT