Amazing image captured 2 miles from my house
I almost don't believe it except that I know these guys and have been in their dome.
Note that Marek Kozubal is KB1NCG
http://antwrp.gsfc.nasa.gov/apod/image/0706/atlantisISS_dantowitz.jpg
-Joe KM1P
Fortunately no stars in the background to mess up the exposure....
K4SHF
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Joe Fitzgerald Sent: Thursday, June 28, 2007 7:01 PM To: Amsat-Bb Subject: [amsat-bb] Amazing image captured 2 miles from my house
I almost don't believe it except that I know these guys and have been in their dome.
Note that Marek Kozubal is KB1NCG
http://antwrp.gsfc.nasa.gov/apod/image/0706/atlantisISS_dantowitz.jpg
-Joe KM1P _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
On 6/28/07, Tim Tapio k4shf@k4shf.com wrote:
Fortunately no stars in the background to mess up the exposure....
With STS and the ISS in direct sunlight at 350km with a dark sky background, I doubt starlight is an issue. There probably *are* stars in the background, but they're wiped out by the vastly brighter sunlit targets.
-- 73 de Maggie K3XS Editor, Phil-Mont Mobile Radio Club Blurb - http://www.phil-mont.org Elecraft K2 #1641 -- AOPA 925383 -- ARRL 39280
Laura Halliday VE7LDH "Que les nuages soient notre Grid: CN89mg pied a terre..." ICBM: 49 16.05 N 122 56.92 W - Hospital/Shafte
Tim Tapio k4shf@k4shf.com wrote about the Atlantis/ISS picture:
Fortunately no stars in the background to mess up the exposure....
The exposures on pictures like this are typically milliseconds. Nowhere nearly enough time for stars to even start to show up.
It's also common practice to shoot hundreds, or even thousands of frames, and pick the best ones. This is easy to do with CCD cameras. It's also how people take pictures of planets nowadays: shoot a few thousand frames with a web camera, then stack the good ones, which enhances detail and reduces noise. The results from a cheap web camera (albeit hooked up to a decent telescope and mount) are better than pre-Hubble observatory photos.
We really are talking cheap here. I use a Logitech QuickCam Pro 4000 with a telescope adapter replacing the original optics. And get better pictures than what was in my high school science textbooks in the 1970s.
Laura Halliday VE7LDH "Que les nuages soient notre Grid: CN89mg pied a terre..." ICBM: 49 16.05 N 122 56.92 W - Hospital/Shafte
_________________________________________________________________ Quoi faire après notre rude hiver? http://search.live.com/results.aspx?q=activit%C3%A9s+estivales+Qu%C3%A9bec&a...
That IS very amazing. Especially when you consider that most optical 'antennas' aren't usually set up to track that fast. Thanks!
Gary, N7BRJ/DA1BRJ
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Joe Fitzgerald Sent: Friday, June 29, 2007 1:01 AM To: Amsat-Bb Subject: [amsat-bb] Amazing image captured 2 miles from my house
I almost don't believe it except that I know these guys and have been in their dome.
Note that Marek Kozubal is KB1NCG
http://antwrp.gsfc.nasa.gov/apod/image/0706/atlantisISS_dantowitz.jpg
-Joe KM1P _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Well, I'd believe a Ritchey-Chrétien is capable of that kind of resolution .. :D .. have had an RC on my fantasy wish list for years. (And will continue to have it on that list for many years to come, neither I nor anyone I know can afford one.) We all can dream, right?
Tell your friends I deeply envy their scope and they do great work with it! :)
On Jun 28, 2007, at 6:01 PM, Joe Fitzgerald wrote:
I almost don't believe it except that I know these guys and have been in their dome.
Note that Marek Kozubal is KB1NCG
http://antwrp.gsfc.nasa.gov/apod/image/0706/atlantisISS_dantowitz.jpg
-Joe KM1P
At 08:59 AM 6/29/2007, Bruce Bostwick wrote:
Well, I'd believe a Ritchey-Chrétien is capable of that kind of resolution .. :D .. have had an RC on my fantasy wish list for years. (And will continue to have it on that list for many years to come, neither I nor anyone I know can afford one.) We all can dream, right?
Tell your friends I deeply envy their scope and they do great work with it! :)
It isn't because it is an RC ... Ron Dantowitz was doing similar work with a Schmidt-Cassegrain ... This is a larger aperture scope with a longer focal length, giving him better resolution ... He's been imaging the ISS for years now, but this is certainly a break-through image ...
They aren't using CCD cameras but rather video cameras ... even cheap web-cams can now provide incredible views of the planets, as already stated, because we take hundreds or thousands of images and now have software that keeps the good images and discards the bad ones. It then "stacks" the good ones to improve image density. There is an article in Sky and Telescope recently by Dr. Don Parker that talks about this.
Dave VE3GYQ/W8 Spencerville, OH
Great picture indeed!
I remember seeing someone in the UK making similar pictures (this was in 2002). I checked and found his homepage again.
Look at this video: http://www.youtube.com/watch?v=xjUxBTWE1r0
And this is his website: http://www.astrospider.com
Great stuff to look at.
73, Andre PH7AT.
Joe Fitzgerald wrote:
I almost don't believe it except that I know these guys and have been in their dome.
Note that Marek Kozubal is KB1NCG
http://antwrp.gsfc.nasa.gov/apod/image/0706/atlantisISS_dantowitz.jpg
-Joe KM1P _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (8)
-
Andre PH7AT -
Bruce Bostwick -
David B. Toth -
Gary Memory -
Joe Fitzgerald -
laura halliday -
Margaret Leber -
Tim Tapio