... Fata Morgana: A Possibly Titanic Mirage . ... 15.04.2012 . ... Credit Copyright: Mila Zinkova Explanation: Did this mirage help sink the Titanic? The optical phenomenon called Fata Morgana can make strange shapes or a false wall of water appear above a watery horizon. ... One hundred years ago today, such a Fata Morgana mirage might have obscured real icebergs from the clear view of crew onboard the Titanic . ... The above Fata Morgana mirage was taken off the US Pacific coast in 2008. ... April . ...

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• PG 1115+080: A Gravitational Cloverleaf
• Journal "Peremennye Zvezdy"
• Астронет > A Distant Galaxy in the Deep Field

... October 5, 1997 . Worlds of a Distant Sun: 47 Ursae Majoris b . ... Above is a hypothetical scene near one such planet whose sun, 47 Ursae Majoris (47 UMa), is very similar to our own. In our sky, 47 UMa appears as a faint, inconspicuous star below the cup of the "the Big Dipper" . Our own sun would be equally inconspicuous when viewed from 47 UMa .. ... NASA plans to explore nearby planetary systems using spaceborne observatories. ... About APOD > . ... NASA Technical Rep.: ...

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• APOD: July 1, 1996 - Worlds of a Distant Sun: 47 Ursae Majoris b
• APOD: 2004 December 10 - Debris Disks Surround Distant Suns
• APOD: 2003 November 28 - The Most Distant X-Ray Jet

... Assured of a reliable method of solving the normal equations, we now consider the equations of condition. The observed magnitude m of a star at M air masses with true instrumental magnitude is modelled as ([ 10 ], [ 28 ]) . ... The effective extinction coefficient depends on the effective spectral gradient [ 29 ] of the star, for which we use some color index, affected by half the atmospheric reddening ([ 26 ], [ 10 ]): . ... Thus, for the B band of UBV, we use the (U-V) color. ...

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• PMT Voltage
• Photometry of the Other Program Frames

... A three-cell test section roughly representative of the primary mirror was provided for this test by the Steward Mirror Lab. ... Additionally, the tests are intended to determine relative airflow vs. pressure drop characteristics for each of the air flow patterns so the results can be evaluated both as a function of flow rate and of pressure drop along the flow path. ... The bottom (top as installed) was cut out so it could close the chamber for heating and be removed for the cooling tests. ...

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... Two files from two exposures (even from different observations or instruments) are taken as input. These may be EPIC event lists or two other additional files (attitude files, orbit files etc [see comments]). ... Warnings are given when the event files are deemed not entirely compatible (i.e. their INSTRUME or FILTER keywords are different). ... Given here is a summary of the current conditions whereby event files (or parts thereof [blocks/columns etc]) are or are not merged. ...

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• Different types of detector map

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. June 5, 1999 . ... Explanation: Betelgeuse (sounds a lot like "beetle juice"), a red supergiant star about 600 light years distant, is seen in this Hubble Space Telescope image - the first direct picture of the surface of a star other than the Sun. While Betelgeuse is cooler than the Sun , it is more massive and over 1000 times larger. ...

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• APOD: July 9, 1999 - NGC 7789: Galactic Star Cluster
• APOD: January 6, 1999 - M6: The Butterfly Cluster
• APOD: January 10, 1998 - Disorder in Stephan's Quintet

. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1996/05 Greece, Chalkidiki :: Boat trip to Mount Athos. Peninsula governed by monks. Up . << Prev . Coast is pretty different here -- from beaches to unclimbable rocks. Next >> . Created with the tool album script from MarginalHacks by David Ljung on Wed Jun 5 20:38:30 2013 .

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• Image: Watermill. Not in working condition though.
• Solar modeling input physics (thermodynamics, opacity, nuclear reactions)
• Album: Boat trip to Mount Athos. Peninsula governed by monks.

... I tried reducing the field with five different model point-spread functions (PSFs): (1) a spatially invariant PSF derived from ten bright stars in the test image itself; (2) a quadratically varying PSF derived from the NGC 1850 frames discussed by Stetson (1994b); and (3) spatially invariant, (4) quadratically varying, and (5) cubically varying PSFs derived from grids of model profiles generated with Tiny TIM by Shaun M. Hughes. ...

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• Gauging the impact of executing science program across different COS/FUV
• Terrestrial Silicates Compared to Astronomical Silicates
• Software Conditions

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

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. Mars was imaged in great detail in 2005. New research indicates Earth's core formed under different conditions from those that existed on Mars. One possible explanation for this is the difference in mass between the two planets. With Earth being eight times larger than Mars, the pressure of core-formation could be higher. Different silicate phases also may have been involved. NASA/JPL/USGS

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B942ECC98-85CA-4681-B4C3-E8466750CD3B%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B2C032E17-8520-4ADD-8D2F-AB34954A844F%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BF7D8EA3E-3CC2-49CE-A995-FF78AC765963%7D

... Science Users Information > Observing with ESO Telescopes > Phase 2 Preparation > Observing conditions . ... Service Mode Philosophy . ... The following definitions of the observing conditions are common between Phase 1 preparation and Phase 2 preparation, as well as between Service Mode and Visitor Mode observations. ... There are additional Service Mode Policies and Service Mode Guidelines regarding the observing conditions. ... Seeing (Phase 1) and Image quality (Phase2) constraints . ... Moon . ...

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• ESO - Additional Information
• The Distant Gamma-Ray Burst GRB 050904 | ESO
• Distant Cluster MS 1008.1-1224 | ESO

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE CHANGING UNIVERSE: EVOLUTION HAPPENS! . c) Changes in the Universe . ... In a universe that is not evolving, we should see as many of these hyper-active galaxy cores in each period of cosmic history. ... An Ancient Universe - Table of Contents . ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

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• ASP: Beacons in the Gloom
• ASP: The Biggest Bang of Them All
• ASP: Light Pollution

... Spacecraft . ... To space by cannon? Finally, the deep space explorers --spacecraft which break away from the Earth's gravity . ... The "Luna" series of the USSR conducted 7 soft landing of unmanned probes, two of them with wheeled robotic "Lunokhods," and two of those missions returned samples to Earth. Others spacecraft have visited the major planets of the Solar system. ... The Mariner series have explored Venus and Mars--and Mariner 10 even reached Mercury, for three separate encounters! ...

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• How Distant is the Moon?--lesson plan #14
• Main results of the experimental and theoretical research completed in 2009
• Polar Orbiting Satellites

Next: A Universal Diagram for Up: ``Ecology'' of Magnetic Rotators Previous: The Corotation Radius . The interaction of a magnetic rotator with the surrounding plasma to a large extent depends on the relation between the four characteristic radii: the stopping radius, , the gravitational capture radius,   , the light cylinder radius,   , and the corotation radius,   . ... Hence, the classification of the interaction regimes may well mean the classification of magnetic rotators. ...

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• E-P transitions for different orbits

Ingredients of Life found in distant galaxy, Arecibo astronomers announce. Astronomers from Arecibo Observatory announced today at an American Astronomical Society meeting in Austin, TX, that they had found two of the basic ingredients of life in the distant galaxy Arp 220. The team used the 305-m Arecibo Radio Telescope, the world's largest and most sensitive, to observe the galaxy at a number of different frequencies. ...

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• Why can I only see six of the ``Seven Sisters''?
• Different types of HVCs in different environments?
• td4 erratic motion

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

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Next: The hardware and software Up: Keeping Time Previous: Keeping Time . ... Since the Earth is round, noon happens at different times in different places. This leads to the concept of local time . ... As soon as you need to communicate with distant places, you'll notice the need for a common time. ... Each local time is called a time zone. ... Other countries do not do this. ... In the US and some other countries, the local time zones have a name and a three letter abbreviation. ...

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• Influence of Climate Variables on Tree-Ring Widths of Different Species
• Lunar Eclipse March 2007
• The Cosmology of Distant and Dusty Galaxies: 3 Nov, Belfast | International

Next: The Individual Approach Up: The Joint Approach Previous: Self-Calibration . We briefly describe some other useful tools. ... Mosaic Point-Spread Function - MOSPSF: It is occasionally instructive to look at the point-spread function at a particular position in a mosaic experiment. ... Additionally, as mentioned above, invert does not attempt to completely correct for the primary beam attenuation where there is too little data (i.e. some primary beam attenuation is in the output image). ...

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• ATNF Daily Astronomy Picture
• ATNF Colloquium
• Conditions for all potential users:

... But there also exists a practical angle: in a world increasingly dependent on electricity and electronics, the "space weather" outside the atmosphere can have serious effects, in particular on human communications. Currently more than 200 communication satellites circle the Earth in synchronous orbit . ... For a view of NOAA's "space weather report," click here ; another such report, from the University of Michigan, is linked here . ... Another such event occured April 7-11, 1997 . ...

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• The Face on Mars
• Parallax
• The Acceleration of the Aurora

FREE USE LICENSE PLEASE READ THE FOLLOWING TERMS AND CONDITIONS. ... SOFTWARE COVERED BY THIS LICENSE This license agreement ("Agreement") applies only to the version of the JavaScript Form Validator software ("JavaScript Form Validator") with which this Agreement is included by JavaScript-Coder.com ("JavaScript-Coder.com"). ... FREE USE LICENSE. JavaScript-Coder.com grants you a non-exclusive license, free of charge, to use Form Validation script code in any number of your web pages. ...

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• Fast search through RTT150 data archive