... On some space shuttle missions, there are opportunities for observers in the continental United States and Hawaii to see the orbiter fly overhead. ... The second item is a Space Shuttle Mission Chart, which is a Mercator projection map of the world with the orbiter's orbits superimposed on Earth's surface. ... Shuttles are launched from the Kennedy Space Center in Florida, which is at a latitude of 28.5њ north. ... NASA Johnson Space Center . ... You will see that Shuttle orbits just graze the globe...

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... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Information & tools for observers . ... Infrared and Sub-millimetre Observing Conditions on the Antarctic Plateau . ... The Antarctic plateau provides the best terrestrial sites for infrared and sub-millimetre astronomy. ... Finding a location where aerosol levels are minimised is a key constraint in determining the optimum site on the Antarctic plateau for an infrared observatory. ...

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• Conditions for all potential users:
• APPENDIX B. The perturbed boundary conditions
• mmwave_mopra

... HST . ... HST Peer Review Process . ... HST Overview . ... Cycle 24 Announcement . ... Proposal ID = 12579 Principle Investigator = Joanna Holt - Sterrewacht Leiden Title = "AGN feedback in young, radio-loud AGN" Time = May 14, 2012 , 22:56:53 - 23:57:05 Target = PKS-0023-26 Instrument = ACS/WFC . ... In order to address this issue, we propose to make HST ACS/WFC observations of a small, complete sample of compact (young) radio sources which have clear evidence for strong emission line outflows. ...

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• How do I best determine an observation's actual orientation?

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

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... Rates are estimated to be from 50-100 meteors per hour in prime observing conditions. But this is the so-called ZHR, or Zenithal Hourly Rate, which is the number of meteors per hour which would be seen by an experienced observer, with the radiant in the zenith, in a perfectly clear dark sky. ... The peak is expected to be at 23.30 UT so as the radiant (in the 'Sickle' of Leo) will not even have risen from most of Ireland by then, we will see very few meteors, if any, at that time. ...

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• Armagh Observatory
• J.G. Doyle, Research Astronomer
• Solar Eclipse Observed Armagh Observatory

... ARC 3.5m | Weather Closure Conditions . The enclosure will be closed by the Observing Specialist under the following conditions. ... This policy will be consulted whenever there are questions or disagreements concerning closure of the APO 3.5-meter telescope due to hazardous conditions or situations, at times when telescope operations are being overseen by an APO Observing Specialist. ... the on-duty Observing Specialist has full responsibility, and sole authority, to make this decision. ...

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• Information for Observers
• APO Telescope Documentation
• Information for On-Site Observers

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The algorithm and appropriate program for decametric radiosignal propagation conditions prediction for paths from 500 to 9000 km have been developed at ISTP SB on the basis of normal wave method (AltyntsevaB.I,Iliyin N.V., Kurkin V.I. and others //Decameters channel simulation on the base of normal wave method . ... Solar activity indices are chosen automatically from the prediction date from the database . ...

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• East Siberian Center for the Earth's Ionosphere Research. Ionospheric parameter

... 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 - Visitor Mode Phase 2 Guidelines
• ESO - Paranal Science Operations: End of Missions Report
• ESO - La Silla Science Operations

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit–їs . ... les plus belles images de l'Univers d–їcrypt–їes pour vous . ... Accueil –А observer : V–їnus, Spica et des –їtoiles filantes . ... Surveillez aussi les –їtoiles filantes . Lorsque le ciel devient sombre, il se peut que quelques m–їt–їores z–Rbrent le ciel, car c'est actuellement le pic d'activit–ї de l'essaim d'–їtoiles filantes des Aurigides . ... 08/08/2013 - Les Nuits des –їtoiles 2013 : cвАЩest parti ! ...

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• Stardust va observer le cratГЕre de Deep Impact sur la comГЕte Tempel 1 | Ciel
• Cette nuit, observez les Orionides! | Ciel et Espace
• Deux beaux rendez-vous c†йlestes cette nuit | Ciel et Espace

... Un Satellite GOES . Il s'agit des satellites m?t?o, qui surveillent le temps, comme ceux de l' "administration am?ricaine Oc?anique et Atmosph?rique Nationale " (NOAA) :c' est la s?rie GOES (l'un d'eux sur le dessin de droite) Ils sont en orbite synchrone, observant toujours le m?me secteur, bien que la Terre tourne. ? cette classe appartiennent aussi "les satellites espions" qui observent la terre depuis des orbites circulaires basses. ... des clients commerciaux. ...

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• High Energy Astrophysics Missions
• Transits of Venus
• The Scale of the Solar System

Direct images gallery. Here we have presented some images obtained on SAO telescopes by using SCORPIO. ... NGC 6951 . ... This color image are combined from the frames in the filters V ("blue"), R ("green") and middle-band filter SED755 ("red"). ... The true color image is constructed from three frames in B (Texp=600 sec), V (Texp=480 sec) and R (Texp=400 sec) filters. ... The true color image is constructed from three frames in B (Texp=180 sec), V (Texp=120 sec) and R (Texp=90 sec) filters. ...

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• Experiment COLD: Astrophysical Problems Studied in Experiment Cold
• instruct
• The spectrograph design and the observing procedure

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Let it be a time for you to become aware of the Sun's motion in our skies. ... They observed, as we do today, the motion of the Sun from a point high in the summer sky to a point low in the winter sky. ... The Chumash, Native Americans who inhabited what is now California, relied on their high chief and his assistants to pull the Sun back to Earth at the time of the winter solstice. ...

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• ASP: Let Venus Be My Guide
• ASP: Using Multicultural Dimensions to Teach Astronomy
• ASP: A Good Definition of the Word "Planet": Mission Impossible?

... Note: Click here a longer, much more comprehensive overview of the polar aurora . ... Magnetic Field . ... Aurora . ... 3b. Fritz Aurora . ... Electrons . ... Typical aurora (Dick Hutchinson ї) . In Alaska, Canada, Norway, Finland or northern Russia, on a clear night, a greenish glow is often seen in the sky, known as the "Northern Lights." ... Auroral light is produced at a height of about 100 km (60 miles) when fast electrons, arriving from space, slam into atoms and molecules of the atmosphere. ...

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• High Energy Astrophysics Missions
• Solar Energetic Particles
• Energetic Particles

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . The Mars Pathfinder and Global Surveyor Missions! ... Listed Since July 15, 1998 . ... http://mpfwww.jpl.nasa.gov/ . ... Additional Information . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Erie County Mobile Observers Group (pa), AstroGuide Listing
• Whatcom Association Of Celestial Observers, Waco, AstroGuide Listing
• Amateur Observers' Society Of New York, Inc., AstroGuide Listing

. Zeiss-1000 observers TV-camera 768x576 image. (click here for TV-camera description page) or switch to LiveTV mode using: . direct image streaming (for Mozilla / Netscape / Galeon / Epiphany etc) . Axis ActiveX module (for Microsoft Internet Explorer) . Cambozola Java Applet (for any browser with Java)

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• Emission-line galaxies
• Selection criteria
• Sky models

... The Dark Doodad Nebula . ... What is that strange dark ribbon on the sky? ... A Halo Around the Moon . ... Have you ever seen a halo around the Moon? ... Cameras around the globe pointed skyward this week to capture the spectacular conjunction of a crescent Moon and bright planets Venus and Jupiter. ... Venus in the Moon . ... On December 1, bright planets Venus and Jupiter gathered near the young crescent Moon, an inspiring celestial scene in early evening skies around the world. ... Astronaut.. ...

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• Procedure
• Other X-ray Missions Links
• XMM-Newton Trainee Project 2004

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

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• VISTA ETC - Exposure Time Calculator

... The following charts/text are intended as tools for monitoring the Type Ia supernovae ( SNe ) event visually or photographically (utilizing telescope equipped CCD equipment).The files include: A replication of The Type Ia SNe , V- magnitude (with data point checks from other cited references)and color index (B-V) templete (to indicate a general color-related trend of the type Ia ... I believe this might help alleviate some of the problems involving the making of acceptable amateur light curves...

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• APOD: 2004 August 25 - Zodiacal Light and the False Dawn
• APOD: 2001 September 12 - Zodiacal Light and the False Dawn
• APOD: January 4, 1997 - A Star Where Photons Orbit

Next: Rotation Periods of ZAMS stars Previous: T Tauri Stars . ... The first attempts to directly measure periodic modulation of T Tauri stars occurred in the early 1980s. Rydgren & Vrba (1983) observed four PMS stars using photoelectric photometry over a period of seven consecutive photometric nights. ... Because the spot lifetime is much longer than the rotational period, the observed effect will be a modulation of the light from the star synchronously with the rotation period. ...

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• Period Criteria
• Correlating Spectral Data with Spatial Gain Variations
• The AstroStat Slog Blog Archive Significance of 5 counts