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Kepler Mission
imran
post Sep 24 2005, 04:23 PM
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This NASA Discovery mission is to be launched in June 2008 and will search for Earth-size and smaller planets. Launch was originally scheduled in 2007 but delayed by 8 months due to "funding constraints".

Here's the official web site:
http://www.kepler.arc.nasa.gov/
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ljk4-1
post Dec 12 2005, 04:02 PM
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Paper: astro-ph/0512251

Date: Fri, 9 Dec 2005 16:01:29 GMT (988kb)

Title: The Effect of the Transit of Venus on ACRIM's Total Solar Irradiance
Measurements: Implications for Transit Studies of Extrasolar Planets

Authors: G. Schneider, J. M. Pasachoff and R. C. Willson

Comments: Accepted to ApJ 8 Dec 2005; 14 pages of text, 8 figures, 1 table
\\
We used the 8 June 2004 transit of Venus (ToV) as a surrogate to test
observing methods, strategies and techniques that are being contemplated for
future space missions to detect and characterize extrasolar terrestrial planets
(ETPs) as they transit their host stars, notably NASA's Kepler mission planned
for 2008. As an analog to "Kepler-like" photometric transit observations, we
obtained (spatially unresolved) radiometric observations with the ACRIM 3
instrument on ACRIMSAT to follow the effect of the ToV on the total solar
irradiance (TSI). Contemporaneous high-resolution broadband imagery with NASA's
TRACE spacecraft provided, directly, measures of the stellar (solar)
astrophysical noise that can intrinsically limit such transit observations.
During the ~ 5.5 h transit, the planet's angular diameter was approximately
1/32 the solar diameter, thus covering ~ 0.1 of the stellar surface. With our
ACRIM 3 data, we measure temporal changes in TSI with a 1 sigma per sample
(unbinned) uncertainty of approximately 100 mW m^-2 (0.007%). A diminution in
TSI of ~ 1.4 W m^-2 (~ 0.1%, closely corresponding to the geometrically
occulted area of the photosphere) was measured at mid-transit compared with a
mean pre/post transit TSI of ~ 1365.9 W m^-2. These observations serve as a
surrogate to future photometric observations of ETPs such as Kepler will
deliver. Detailed analysis of the ToV, a rare event within our own solar
system, with time-resolved radiometry augmented with high-resolution imagery
provides a useful analogue for investigating the detectability and
characterization of ETPs from observations that are anticipated in the near
future.

\\ ( http://arXiv.org/abs/astro-ph/0512251 , 988kb)


--------------------
"After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance.
I see that such intercourse long continued would make one thoroughly prosaic, hard,
and coarse. But the longest intercourse with Nature, though in her rudest moods, does
not thus harden and make coarse. A hard, sensible man whom we liken to a rock is
indeed much harder than a rock. From hard, coarse, insensible men with whom I have
no sympathy, I go to commune with the rocks, whose hearts are comparatively soft."

- Henry David Thoreau, November 15, 1853

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ljk4-1
post Jan 10 2006, 03:51 PM
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Astrophysics, abstract
astro-ph/0601186

From: Gyula Szabo [view email]

Date: Mon, 9 Jan 2006 16:10:04 GMT (132kb)

Possibility of a photometric detection of "exomoons"

Authors: Gy. M. Szabo, K. Szatmary, Zs. Diveki, A. Simon

Comments: 5 pages, 4 figures, accepted by Astronomy and Astrophysics

We examined which exo-systems contain moons that may be detected in transit. We numerically modeled transit light curves of Earth-like and giant planets that cointain moons with 0.005--0.4 Earth-mass. The orbital parameters were randomly selected, but the entire system fulfilled Hill-stability. We conclude that the timing effect is caused by two scenarios: the motion of the planet and the moon around the barycenter. Which one dominates depends on the parameters of the system.

Already planned missions (Kepler, COROT) may be able to detect the moon in transiting extrasolar Earth-Moon-like systems with a 20% probability. From our sample of 500 free-designed systems, 8 could be detected with the photometric accuracy of 0.1 mmag and a 1 minute sampling, and one contains a stony planet. With ten times better accuracy, 51 detections are expected. All such systems orbit far from the central star, with the orbital periods at least 200 and 10 days for the planet and the moon, while they contain K- and M-dwarf stars.

Finally we estimate that a few number of real detections can be expected by the end of the COROT and the Kepler missions.

http://arxiv.org/abs/astro-ph/0601186


--------------------
"After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance.
I see that such intercourse long continued would make one thoroughly prosaic, hard,
and coarse. But the longest intercourse with Nature, though in her rudest moods, does
not thus harden and make coarse. A hard, sensible man whom we liken to a rock is
indeed much harder than a rock. From hard, coarse, insensible men with whom I have
no sympathy, I go to commune with the rocks, whose hearts are comparatively soft."

- Henry David Thoreau, November 15, 1853

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ljk4-1
post Jan 19 2006, 07:16 PM
Post #4


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Group: Members
Posts: 2454
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From: NGC 5907
Member No.: 430



Science/Astronomy:

* Close-Up on the Kepler Mission

http://www.space.com/searchforlife/seti_kepler_060118.html

The next transit of an Earth-sized planet will likely be observed in 2007 by the NASA Discovery Program's Kepler Mission. But the event won't happen in our solar system.

* Asteroid Collision Fueled Ancient Dust Storm on Earth

http://www.space.com/scienceastronomy/0601...eroid_dust.html

One of the biggest cosmic dust storms of the past 80 million years left a blanket of material on Earth after an asteroid in space broke apart, researchers said today.


--------------------
"After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance.
I see that such intercourse long continued would make one thoroughly prosaic, hard,
and coarse. But the longest intercourse with Nature, though in her rudest moods, does
not thus harden and make coarse. A hard, sensible man whom we liken to a rock is
indeed much harder than a rock. From hard, coarse, insensible men with whom I have
no sympathy, I go to commune with the rocks, whose hearts are comparatively soft."

- Henry David Thoreau, November 15, 1853

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Posts in this topic
- imran   Kepler Mission   Sep 24 2005, 04:23 PM
- - ljk4-1   Paper: astro-ph/0512251 Date: Fri, 9 Dec 2005 16:...   Dec 12 2005, 04:02 PM
|- - ljk4-1   Astrophysics, abstract astro-ph/0601186 From: Gy...   Jan 10 2006, 03:51 PM
|- - ljk4-1   Science/Astronomy: * Close-Up on the Kepler Missi...   Jan 19 2006, 07:16 PM
- - Redstone   According to the Kepler website, which doesn't...   Mar 29 2006, 07:46 PM
|- - Toymaker   QUOTE (Redstone @ Mar 29 2006, 07:46 PM) ...   Mar 30 2006, 01:05 PM
|- - PhilHorzempa   QUOTE (Redstone @ Mar 29 2006, 04:46 PM) ...   Apr 3 2006, 08:59 PM
- - BruceMoomaw   Latest news is that the launch is currently set fo...   Mar 30 2006, 06:36 PM
- - GravityWaves   Looks like a great mission, we've got loads o...   Mar 31 2006, 02:57 AM
- - PhilHorzempa   This is targeted at those with some familiarity wi...   May 22 2006, 03:05 AM
|- - BruceMoomaw   QUOTE (PhilHorzempa @ May 22 2006, 03:05 ...   May 23 2006, 01:59 AM
- - remcook   Are there known transiting exoplanets in that piec...   May 22 2006, 09:58 AM
|- - angel1801   QUOTE (remcook @ May 22 2006, 07:28 PM) A...   May 22 2006, 02:07 PM
|- - antoniseb   QUOTE (angel1801 @ May 22 2006, 08:07 AM)...   May 22 2006, 07:02 PM
|- - scalbers   QUOTE (antoniseb @ May 22 2006, 07:02 PM)...   Mar 8 2009, 03:10 PM
- - PhilHorzempa   Here is a direct look at Kepler's FOV (Field o...   May 23 2006, 03:57 AM
|- - GravityWaves   QUOTE (PhilHorzempa @ May 23 2006, 12:57 ...   Jun 14 2008, 04:12 PM
- - ljk4-1   Systems Engineering for the Kepler Mission http:/...   May 23 2006, 03:10 PM
- - PhilHorzempa   Here is an image of a Milky Way star field in the ...   Jul 1 2006, 03:42 AM
- - AlexBlackwell   The Kepler Mission: The Search for Earth-like Plan...   Feb 7 2007, 04:49 PM
|- - ustrax   Alan Stern is not kidding around...   Jul 16 2007, 03:18 PM
- - djellison   "There's a new team in town and we don...   Jul 16 2007, 03:26 PM
|- - ustrax   QUOTE (djellison @ Jul 16 2007, 04:26 PM)...   Jul 16 2007, 03:45 PM
|- - Jim from NSF.com   QUOTE (djellison @ Jul 16 2007, 11:26 AM)...   Jul 16 2007, 05:08 PM
- - Greg Hullender   I really love the Kepler mission concept, and I...   Jul 16 2007, 03:26 PM
- - hendric   Too bad Alan wasn't around to prevent the GP-B...   Jul 17 2007, 12:33 PM
|- - djellison   QUOTE (hendric @ Jul 17 2007, 01:33 PM) 1...   Jul 17 2007, 12:51 PM
- - Jim from NSF.com   Back up Skylab, Agena Triana is some where AFP-88...   Jul 17 2007, 03:18 PM
- - edstrick   "...The Saturn V at JSC is built from parts d...   Jul 18 2007, 06:12 AM
- - djellison   This is what Wiki says: Currently there are three...   Jul 18 2007, 11:26 AM
- - stevesliva   The space station appears destined to contribute a...   Jul 18 2007, 03:46 PM
|- - Jim from NSF.com   Only 3 MPLM's the rest wasn't built   Jul 18 2007, 08:10 PM
- - PhilCo126   In which parts of the Electromagnetic spectrum are...   Aug 31 2007, 06:46 PM
|- - AlexBlackwell   QUOTE (PhilCo126 @ Aug 31 2007, 08:46 AM)...   Aug 31 2007, 06:56 PM
- - PhilCo126   Kepler mission: Work in progress http://www.ballae...   Sep 8 2007, 01:05 PM
- - Del Palmer   Just finished submitting your name for LRO? Now s...   May 5 2008, 06:51 PM
- - Greg Hullender   Another Kepler update. http://www.jpl.nasa.gov/ne...   Sep 27 2008, 06:27 PM
- - Greg Hullender   They're now showing Kepler scheduled for launc...   Oct 8 2008, 05:04 PM
- - Ron Hobbs   The NASA Launch Schedule now has the Kepler launch...   Oct 11 2008, 08:04 PM
- - Ron Hobbs   Yesterday, NASA moved the launch of Kepler back to...   Oct 15 2008, 04:06 PM
- - BPCooper   I haven't seen any posts on Kepler in a while ...   Feb 21 2009, 07:56 PM
|- - helvick   Thanks for the update Ben - much appreciated. S...   Feb 22 2009, 01:11 AM
- - Byran   I hope that Kepler would have to wait for the resu...   Feb 26 2009, 06:44 PM
- - Stu   Thanks for the link to the Kepler info Byran, fasc...   Feb 26 2009, 07:03 PM
- - Greg Hullender   Although I think this bit is worth posting, since ...   Feb 26 2009, 11:11 PM
- - kwan3217   Launch has been pushed back a day to check the Del...   Feb 27 2009, 07:28 PM
|- - BPCooper   The Delta 2 rocket with Kepler has been cleared fo...   Mar 3 2009, 12:52 AM
- - imipak   *ulp*. This is the most nervous I'm going to b...   Mar 3 2009, 08:59 PM
|- - ustrax   imipak, Kepler and its possibilites is definitily ...   Mar 4 2009, 09:57 AM
- - imipak   I hope, _hope_, /HOPE!/ that you're right....   Mar 4 2009, 08:01 PM
|- - ustrax   And how cool can it get the fact of watching the l...   Mar 4 2009, 08:09 PM
- - imipak   I'm sure there's a Portuguese equivalent o...   Mar 4 2009, 08:53 PM
|- - ustrax   Yes, I know the expression...I have chosen another...   Mar 4 2009, 09:30 PM
- - PhilCo126   Did anyone found a weblink with the dimensions of ...   Mar 5 2009, 08:42 AM
|- - ustrax   Nope...I would say 5 to 6 meters tall... Only foun...   Mar 5 2009, 11:18 AM
- - PhilCo126   Ben Cooper Launchphotography has amazing photos of...   Mar 5 2009, 03:21 PM
- - Greg Hullender   I have a "no peanuts" rule this time, th...   Mar 5 2009, 04:59 PM
|- - ustrax   If my time zone doesn't fail me there will be ...   Mar 5 2009, 05:25 PM
- - Vultur   16 hours left... fingers crossed...   Mar 6 2009, 11:33 AM
|- - ugordan   QUOTE (Vultur @ Mar 6 2009, 12:33 PM) fin...   Mar 6 2009, 12:02 PM
|- - ustrax   Great to see the attention it is getting on CNN...   Mar 6 2009, 12:42 PM
- - SpaceListener   I am trying to find out about the future position ...   Mar 6 2009, 02:43 PM
|- - HughFromAlice   QUOTE (SpaceListener @ Mar 7 2009, 12:13 ...   Mar 6 2009, 03:40 PM
|- - dmuller   Does anybody know where I can find the spice kerne...   Mar 7 2009, 01:57 PM
- - remcook   My impression was that it would move further and f...   Mar 6 2009, 02:56 PM
- - SpaceListener   Thank you HughFromAlice. Its heliocentric orbit ta...   Mar 6 2009, 05:18 PM
|- - ustrax   Man...Jon Jenkins back at BTC contagiated me with ...   Mar 6 2009, 11:10 PM
- - nprev   Great, moving words. I think all of us are pretty ...   Mar 7 2009, 12:26 AM
- - Zvezdichko   Looks like launch was successful.   Mar 7 2009, 06:07 AM
- - eoincampbell   Brilliant launch Kepler, (I'm Ecstatic) Go Fin...   Mar 7 2009, 07:26 AM
- - PhilCo126   Indeed, together with CoRoT a very interesting mi...   Mar 7 2009, 07:59 AM
- - Stu   Gorgeous launch pics by Ben Cooper... http://www....   Mar 7 2009, 01:24 PM
- - FrankB   I don't know about Corot... It seems it didn...   Mar 7 2009, 01:24 PM
- - SpaceListener   I am glad to know that the launch of Kepler was st...   Mar 7 2009, 03:19 PM
- - BrianJ   Congratulations on a succesful launch to everyone ...   Mar 7 2009, 07:45 PM
|- - Del Palmer   QUOTE (BrianJ @ Mar 7 2009, 07:45 PM) 1. ...   Mar 8 2009, 01:49 AM
|- - MahFL   We saw the launch last night in real life from our...   Mar 8 2009, 02:59 AM
||- - climber   QUOTE (MahFL @ Mar 8 2009, 03:59 AM) We s...   Mar 8 2009, 04:11 PM
|- - BrianJ   QUOTE (Del Palmer @ Mar 8 2009, 01:49 AM)...   Mar 8 2009, 06:11 PM
|- - Mongo   QUOTE (BrianJ @ Mar 8 2009, 06:11 PM) Tha...   Mar 8 2009, 07:53 PM
|- - scalbers   QUOTE (Mongo @ Mar 8 2009, 07:53 PM) It w...   Mar 8 2009, 08:53 PM
- - scalbers   Yes, the radial velocity method can determine the ...   Mar 7 2009, 08:28 PM
|- - BrianJ   QUOTE (scalbers @ Mar 7 2009, 08:28 PM) Y...   Mar 7 2009, 09:56 PM
|- - scalbers   QUOTE (BrianJ @ Mar 7 2009, 09:56 PM) Usi...   Mar 8 2009, 03:06 PM
- - belleraphon1   Congratulations to the mission launch team on this...   Mar 7 2009, 09:28 PM
- - tasp   It would not be confirmable by the 3 observation c...   Mar 8 2009, 03:34 AM
- - nprev   Considering that the Kreutz group is thought to ha...   Mar 8 2009, 06:24 AM
- - Syrinx   I made it out to the Kepler launch party here at N...   Mar 8 2009, 08:00 PM
|- - dilo   QUOTE (Syrinx @ Mar 8 2009, 09:00 PM) - W...   Mar 8 2009, 09:09 PM
- - robspace54   I am an engineer for MAG Cincinnati (formerly Cinc...   Mar 10 2009, 05:18 PM
- - PhilCo126   Talking about mission life time; there was already...   Mar 10 2009, 06:33 PM
|- - HughFromAlice   QUOTE (PhilCo126 @ Mar 11 2009, 04:03 AM)...   Mar 10 2009, 10:39 PM
|- - Hungry4info   QUOTE (HughFromAlice @ Mar 10 2009, 04:39...   Mar 10 2009, 10:46 PM
||- - AndyG   QUOTE (Hungry4info @ Mar 10 2009, 10:46 P...   Mar 11 2009, 09:32 AM
||- - HughFromAlice   QUOTE (Hungry4info @ Mar 11 2009, 08:16 A...   Mar 11 2009, 10:57 AM
|- - SpaceListener   QUOTE (HughFromAlice @ Mar 10 2009, 04:39...   Mar 11 2009, 02:22 PM
|- - dilo   SpaceListener, I hope you're jocking... If y...   Mar 11 2009, 03:50 PM
|- - djellison   QUOTE (SpaceListener @ Mar 11 2009, 02:22...   Mar 11 2009, 05:11 PM
- - PhilCo126   Correct Doug... examining the star's (periodic...   Mar 12 2009, 08:58 AM
- - siravan   QUOTE (PhilCo126 @ Mar 12 2009, 03:58 AM)...   Mar 12 2009, 11:23 AM
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