... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...

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. Search this album . Gallery . :: The First 100 Years . :: Staff - Serious and not -so-serious . :: Staff, date unknown . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . View full size . Title: Staff, date unknown . File name: snc240688.jpg . Dimensions: 832 x 621 px . Page: 1 2 27 28 29 30 31 32 33 34 35 36 37 74 75 . Powered by Gallery 3.0.9 (Chartres) . Login

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• Unknown

Next: Code III: Regularized Up: Image Restorations of High Previous: Comments . In the standard case of known PSF (Code I), knowledge of the PSF is often derived from the very image to be restored. ... For such cases, a natural generalization of Code I is a code that incorporates these ``PSF stars'' into the list of designated point sources and treats the PSF as an unknown function to be determined simultaneously with and . ... The first is that has multiple maxima of approximately equal height. ...

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• Previous Known Issues and Features
• Known PyRAF Shortcomings
• Code I: Known PSF

... Posts tagged ?unknown truth? ... I must say that I do not know Bayesian methods to cope with model misspecification, tests with an unknown true model, or tests for non-nested hypotheses except Bayes factor (concerns a lot how to choose priors). ... Tags: hypothesis testing , maximum likelihood , model misspecification , non-nested models , unknown truth . ... Comment . ... Entries RSS . Comments RSS . ... vlk on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...

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• Known SAOtng bugs and limitations
• Harvard College Observatory History in Images

From: Andrew Melatos ( amelatos@isis.ph.unimelb.edu.au ) . Date: Thu Sep 27 2001 - 10:29:54 EST . Previous message: Andrew Melatos: "summary" . Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ] . ... Andrew . MESSAGE/DELIVERY-STATUS attachment: stored . attached mail follows: . ... for the workshop. ... workshop. ...

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• Discovery of PSR J0108-1431, the closest known neutron star
• casacore: casa::TableUnknownDesc Class Reference
• casacore: FittingProxy::FitType Class Reference

... HeB HeR StH 41 05 29 11.44 -06 08 05.4 10.6: F:ea tab2_06.ps tab2_06.jpg spec2_06.ps NGC 1977 p102 Y-WeT HeB RY Ori 05 32 09.94 -02 49 46.6 10.80-13.9pg 11.15-13.00 F6/8ep tab2_07.ps tab2_07.jpg spec2_07.ps Y-BiT DST?- ... ps Bran 217 O-WeT Star in bright Neb-TiS BeC, FiM T Cha 11 57 13.53 -79 21 31.5 10.1-14.0 F5e tab2_13.ps tab2_13.jpg spec2_13.ps Y-WeT No Em+DST? ... HeB BO Cep 22 16 54.07 +70 03 45.1 12.0-13.7B 11.46 F2ea tab2_23.ps tab2_23.jpg spec2_23.ps Y-WeT HeB . Table I | ...

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• ESO - Are there any known problems with VIMOS data?
• ESO - Are there any known problems with ISAAC data?
• ESO - Are there any known problems with OMEGACAM data?

Blackholes Forum Message . Forums: . ... It Is Still Unknown . ... Posted by Rowanda on January 28, 2005 02:57:17 UTC . ... Beginner quantum - duordi - January 29, 2005 - 15:38 UTC . Re: Begginner quantum - wandaqueen - January 30, 2005 - 00:56 UTC . Oh? - duordi - January 30, 2005 - 03:25 UTC . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Unknown Ancient (sacred) Geometry - an Astronomy Net God Science Forum Message

. Parent Directory . albuquer.alb . appice.alb . bcomp.alb . belafont.alb . billhunt.alb . billward.alb . dupree.alb . gale.alb . giant.alb . lynne.alb . petebest.alb . pilot.alb . rodgers.alb . sheridan.alb . sparks.alb . unknown.001 . unknown.002 . weathers.alb

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• Image: The palace of unknown (for me) origin. Sharof Rashidov avenue.
• Index of /ftproot/pub/rec/music/XG/songs/unknown

... 2009 July 6 . Unknown Dark Material on Mercury . Credit: MESSENGER , NASA , JHU APL , CIW . ... Pictured above on the lower right, a large crater -- about 100 kilometers across -- has unusual dark material of unknown composition near its center. ... If so, the composition of the dark mound might be similar to the composition of some mysterious dark ring s also recently discovered on Mercury. Alternatively, the dark material could be related to an unusual composition of the impacting rock . ...

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• APOD: August 27, 1995 - Gamma Ray Bursts from the Unknown
• APOD: November 23, 1996 - Gamma Ray Bursts from the Unknown
• APOD: 2011 April 4 - Verona Rupes: Tallest Known Cliff in the Solar System

... Unknown Dark Material on Mercury . ... Credit: MESSENGER , NASA , JHU APL , CIW Explanation: What is that strange material on Mercury? ... Pictured above on the lower right, a large crater -- about 100 kilometers across -- has unusual dark material of unknown composition near its center. ... One origin hypothesis is that the dark material was uncovered from beneath Mercury's surface during the impact that created the surrounding crater. ... Publications with keywords: Mercury - Messenger . ...

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• Gamma Ray Bursts from the Unknown
• Астронет > Gamma Ray Bursts from the Unknown
• Астронет > Unknown Dark Material on Mercury

. XMM-Newton Science Analysis System . omgsource (omgsource-1.4) [xmmsas_20080701_1801-8.0.0] . Meta Index / Home Page Occasionally problems can arise with the interface between the program and ds9, resulting in XPA errors and the ds9 image to disappear. This is more likely to happen if the system is very busy. If it does happen, then you click the Start ds9 button to restart the ds9 image displayer. XMM-Newton SOC/SSC -- 2008-07-02

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• Parameters
• Generation from In-Orbit Data
• Radiation Workshop Topics

The kinematical properties of the fragment ejection processes in the events that produced the presently known asteroid families have long been poorly known due to the presence of a couple of unknown angles (the true anomaly and the argument of the perihelion of the parent body at the epoch of the family formation) in Gauss' equations. ... In these cases, we show that the unknown angles can be reliably determined, and the ejection velocities of the fragments can be fairly well reconstructed. ...