|
|
Thread Tools | Display Modes |
#21
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
On Tue, 17 Mar 2009 13:30:17 -0700 (PDT), "Ken S. Tucker"
wrote: I'd say it was certainly as bright as I've seen Venus, also, I'm informed, with good eyes, one can resolve it beyond a point. No. Not even with basic binoculars. Brian |
#22
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
On Mar 17, 3:35 pm, Brian Thorn wrote:
On Tue, 17 Mar 2009 13:30:17 -0700 (PDT), "Ken S. Tucker" wrote: I'd say it was certainly as bright as I've seen Venus, also, I'm informed, with good eyes, one can resolve it beyond a point. No. Not even with basic binoculars. Brian Sorry Brian, you're out classed :-). A professional associate did the arc visual acuity calculations and I found his computations to be correct. I'll help you out if you have any notions of what binoculars are. Ken |
#23
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
Ken S. Tucker wrote:
On Mar 17, 3:35 pm, Brian Thorn wrote: On Tue, 17 Mar 2009 13:30:17 -0700 (PDT), "Ken S. Tucker" wrote: I'd say it was certainly as bright as I've seen Venus, also, I'm informed, with good eyes, one can resolve it beyond a point. No. Not even with basic binoculars. Brian Sorry Brian, you're out classed :-). A professional associate did the arc visual acuity calculations and I found his computations to be correct. I'll help you out if you have any notions of what binoculars are. Ken It depends on the definition of resolution. The atmosphere alone limits resolution. Dan, U.S. Air Force, retired |
#24
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
On Mar 17, 3:55 pm, Dan wrote:
Ken S. Tucker wrote: On Mar 17, 3:35 pm, Brian Thorn wrote: On Tue, 17 Mar 2009 13:30:17 -0700 (PDT), "Ken S. Tucker" wrote: I'd say it was certainly as bright as I've seen Venus, also, I'm informed, with good eyes, one can resolve it beyond a point. No. Not even with basic binoculars. Brian Sorry Brian, you're out classed :-). A professional associate did the arc visual acuity calculations and I found his computations to be correct. I'll help you out if you have any notions of what binoculars are. Ken It depends on the definition of resolution. The atmosphere alone limits resolution. ahh, not much, do the high school trig. Ken Dan, U.S. Air Force, retired |
#25
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
On Tue, 17 Mar 2009 16:43:37 -0700 (PDT), "Ken S. Tucker"
wrote: I'd say it was certainly as bright as I've seen Venus, also, I'm informed, with good eyes, one can resolve it beyond a point. No. Not even with basic binoculars. Sorry Brian, you're out classed :-). A professional associate did the arc visual acuity calculations and I found his computations to be correct. I'll help you out if you have any notions of what binoculars are. Does personal experience count? Have you actually tried to make out more than a point? I have. Not in the real world, you can't. Wish it were so, but it isn't. :-) Brian |
#26
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
Ken S. Tucker wrote:
On Mar 17, 3:55 pm, Dan wrote: Ken S. Tucker wrote: On Mar 17, 3:35 pm, Brian Thorn wrote: On Tue, 17 Mar 2009 13:30:17 -0700 (PDT), "Ken S. Tucker" wrote: I'd say it was certainly as bright as I've seen Venus, also, I'm informed, with good eyes, one can resolve it beyond a point. No. Not even with basic binoculars. Brian Sorry Brian, you're out classed :-). A professional associate did the arc visual acuity calculations and I found his computations to be correct. I'll help you out if you have any notions of what binoculars are. Ken It depends on the definition of resolution. The atmosphere alone limits resolution. ahh, not much, do the high school trig. Ken Trig doesn't account for air density variations. If you haven't noticed lenses with focal lengths similar to those found in binoculars can't resolve buildings from the space station. Why do you think recon satellites have focal lengths on the order of several feet? Contrary to myth the Great Wall of China can't be seen from space with the naked eye. Dan, U.S. Air Force, retired |
#27
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
On Mar 17, 5:31 pm, Brian Thorn wrote:
On Tue, 17 Mar 2009 16:43:37 -0700 (PDT), "Ken S. Tucker" wrote: I'd say it was certainly as bright as I've seen Venus, also, I'm informed, with good eyes, one can resolve it beyond a point. No. Not even with basic binoculars. Sorry Brian, you're out classed :-). A professional associate did the arc visual acuity calculations and I found his computations to be correct. I'll help you out if you have any notions of what binoculars are. Does personal experience count? Not much, it's science. Have you actually tried to make out more than a point? No. I have. Not in the real world, you can't. Wish it were so, but it isn't. :-) Brian The person I refer to has good eyes and is a fellow scientist. I'll ask him to put a paragraph together and I'll post it, but Brian I really wish you'd do your own math, for your good. Ken |
#28
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
Dan see my post to Brian.
On Mar 17, 9:21 pm, Dan wrote: Ken S. Tucker wrote: On Mar 17, 3:55 pm, Dan wrote: Ken S. Tucker wrote: On Mar 17, 3:35 pm, Brian Thorn wrote: On Tue, 17 Mar 2009 13:30:17 -0700 (PDT), "Ken S. Tucker" wrote: I'd say it was certainly as bright as I've seen Venus, also, I'm informed, with good eyes, one can resolve it beyond a point. No. Not even with basic binoculars. Brian Sorry Brian, you're out classed :-). A professional associate did the arc visual acuity calculations and I found his computations to be correct. I'll help you out if you have any notions of what binoculars are. Ken It depends on the definition of resolution. The atmosphere alone limits resolution. ahh, not much, do the high school trig. Ken Trig doesn't account for air density variations. If you haven't noticed lenses with focal lengths similar to those found in binoculars can't resolve buildings from the space station. Why do you think recon satellites have focal lengths on the order of several feet? Magnification, no-brainer. Contrary to myth the Great Wall of China can't be seen from space with the naked eye. Dan, U.S. Air Force, retired Dan you're talking about scintillation, (twinkling) it comes and goes. A few years ago, Jupiter and Saturn were sitting beautifully close (bright) out my office window, it was 0F outside, to cold to deploy exterior optics so we decided to set-up the 60mm inside peering through double pane windows, which I figured would brutalize the image. Well holy poop, I kid you not, it was the best I've seen! Jupiters moons and belts, Saturns rings and even Titan, awesome and sharp. Ken |
#29
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
"Ken S. Tucker" wrote in message
... The person I refer to has good eyes and is a fellow scientist. I'll ask him to put a paragraph together and I'll post it, but Brian I really wish you'd do your own math, for your good. Ken You know, you're reminding me of a guy in my Freshman year that "proved" to me that it was impossible to see Long Island from the Connecticut shoreline. Despite the fact that I had done so numerous times. While in a strictly atmosphereless situation you and your friend are of course right, atmospheric diffraction really makes a huge difference here. That said, I am going to have to try this for myself. -- Greg Moore Ask me about lily, an RPI based CMC. |
#30
|
|||
|
|||
Shuttle launch tonight at 7:43 EDT
On Mar 18, 3:30 am, "Greg D. Moore \(Strider\)"
wrote: "Ken S. Tucker" wrote in ... The person I refer to has good eyes and is a fellow scientist. I'll ask him to put a paragraph together and I'll post it, but Brian I really wish you'd do your own math, for your good. Ken You know, you're reminding me of a guy in my Freshman year that "proved" to me that it was impossible to see Long Island from the Connecticut shoreline. Despite the fact that I had done so numerous times. While in a strictly atmosphereless situation you and your friend are of course right, atmospheric diffraction really makes a huge difference here. That said, I am going to have to try this for myself. I've also been informed Venus when bright and close, ie cresent, can be resolved, with good naked eyes, beyond point-like. Ken |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
STS 118 Shuttle Launch tonight | Andy G | UK Astronomy | 1 | August 8th 07 11:51 PM |
Nice Launch Tonight | Jim Dowd | Space Station | 0 | December 10th 06 04:14 AM |
Shenzhou-6 to launch tonight (EDT) | Jim Oberg | Policy | 2 | October 17th 05 03:45 PM |
Shenzhou-6 to launch tonight (EDT) | Jim Oberg | Space Station | 2 | October 17th 05 03:45 PM |
Atlas Launch Tonight | LooseChanj | Space Science Misc | 1 | December 20th 03 03:57 AM |