... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

... User Portal . ... Science Users Information > Science Publications > Science Announcements > ALMA Cycle 3 User Survey Results . ... Science Users Information . ... The fourth ALMA user survey was conducted between the 1 May and 1 June 2015. A total of 536 users (representing 15% of the users who were sent the questionnaire and 44% of the Cycle 3 PIs) responded to the survey. ... The ALMA Observatory sincerely thanks all users who took the time to answer this survey and provide valuable comments. ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... ATCA . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

HST Call for Proposals and HST Primer for Cycle 24 . ... Hubble Space Telescope Call for Proposals for Cycle 24 . Call for Proposals . ... Chapter 2: Proposal Submission Policies . ... Chapter 3: Proposal Categories . ... 3.5 Joint HST-Chandra Observing Proposals . 3.6 Joint HST-Spitzer Observing Proposals . 3.7 Joint HST/XMM-Newton Observing Proposals . 3.8 Joint HST-NOAO Observing Proposals . 3.9 Joint HST-NRAO Observing Proposals . ... 4.2 Parallel Observations . ... 8.5 Cycle . ...

Next: Emission-line galaxies Up: The Hamburg/SAO Survey for Previous: Data reduction . ... Among them 128 are new or confirmed emission line galaxies, 6 are quasars (all with redshifts in the range 2.93 to 3.35) and 23 are galaxies without emission lines (only 5 of them have good enough S/N ratio to identify absorption features and to measure redshifts). ... Emission-line galaxies . ... Non emission-line objects . Absorption line galaxies . Stellar objects . Non-classified objects . ...

... Home Education Astro Answers Astro Answers ? The Big Bang, Inflation, and Latest Results from BICEP2 . ... Astro Answers . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... UA SCIENTIST & TEAM DISCOVER SURFACE FEATURES COVER TITAN (Science contacts: Peter H. Smith, (602) 621-2725; Mark Lemmon, (602) 621-1485; UA Lunar and Planetary Laboratory) . Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ... Upper left: hemisphere facing Saturn. ...

... Rough topography, a large mountain, impact craters, grooves, and steep scarps characterize this region. ... Dawn Science Team Presents Early Science Results . ... Scientists with NASA's Dawn mission are sharing with other scientists and the public their early information about the southern hemisphere of the giant asteroid Vesta. ... If you enjoyed this excerpt from a feature article and would like to receive our quarterly Mercury magazine, we invite you to join the ASP and receive 4 issues a year. ...

... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...

Proceedings of the Particle Physics and Early Universe Conference (PPEUC). ... TESRE, Consiglio Nazionale delle Ricerche, Via Gobetti 101, 40129 Bologna, Italy . Dip. Fisica, Universit? di Roma TRE, Roma, Italy . ... Observations will take advantage of the exceptional dryness and stability of the atmosphere on the high Antarctic Plateau, at Dome C. The first run of observations was performed in December 96 -- January 97 at the Italian-French site, Concordia, at Dome C (Antarctica). ...

Arecibo Galaxy Environment Survey (AGES) The precursor run is finally complete. Here are some initial results that illustrate the success of the observing technique and also areas where we had problems. ... The channel range selected was the inner 3696 channels, thus avoiding the increase in noise at the edge of the bandpass. ... Each frame of the movie is an image of the observing region from each individual velocity (or frequency) channel in the datacube. ...

Below is a table of INTERBALL-2 experiments summary to remind you about specific features of each instrument. ... See bottom of the page for additional information. ... AURORAL PLASMA . ... Spectra of electrons and ions 0.03 < E < 15 keV; anisotropy of electrons and ions (M = 1, 4, 16), 30 < E < 500 keV/Q . ... IKI, Moscow, Russia . ... Electron and ion spectra and anisotropy (M = 1, 2, 4, 16), 0.005 < E < 20 keV/Q . ... Ion composition (M = 1-32) and 3-D energy distribution, 10 eV < E < 30 keV/Q . ...

Scientists Discover Surface Features on Titan . ... Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... Peter H. Smith of the University of Arizona Lunar and Planetary Laboratory and his team took the images with the Hubble Space Telescope during 14 observing runs between Oct. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ...

... The choice of the spectrograph design (Fig.2) is determined by the quantity R, the overall dimensions of the PF cage and the restrictions on the rigidity of the structure of the device. ... As the camera's objective a fast 4-lens aplanat is used having a focal distance F cam =140 mm and a relative aperture of 1:1.8, the resolution at the centre is no less than 80 gr/mm, that over the field at a distance of 3 mm from the edge along the frame ( ) diagonal is 35 gr/mm. ...

FEATURES OF THE HYDROGEN DISTRIBUTION AROUND LUNAR CRATERS PROCLUS AND KEPLER. ... In result of analysis of the data Lawrence and Feldman constructed the hydrogen distribution on the lunar surface [1]. ... However, the authors shown, that EN flux data features may be explained by other element abundance in the lunar soils, namely: Si, Ca, Gadolinium (Gd), Samarium (Sm) and Fe. ... Using of the Feldman's interpretation of the Lunar Prospector data [8], we constructed hydrogen distribution map (Fig.1). ...

The 14 th International Astronomy Olympiad has been held successfully in Hangzhou (China) on November 8-16, 2009. ... There were 17 teams participated and 1 team observed in the XIV IAO: . ... Sunday, November 8 - Day of arrival . ... Thursday, November 12 - Day of excursions . ... M. G. Gavrilov (IAO Chairman) - Chairman, . J. Zhu (Beijing, XIV IAO-2009 and X IAO-2005 LOC Chairman), . ... Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the International Astronomy Olympiad (IAO) . ...

... APT Activities and Science Results 3. ... APT Secretary Philip Edwards (ISAS) reviewed the aims of the APT (http://www.vsop.isas.ac.jp/apt/DefinitionAndAims.html). ... The Australia Telescope Compact Array, and Ceduna, Hartebeesthoek, Kashima, Mopra, Parkes, and Shanghai telescopes of the Asia-Pacific Telescope participated in these observations. ... In the absence of Tetsuo Sasao, Philip Edwards briefly described results of the APT 22 GHz observations conducted from October 1st to 5th, 1997. ...

... December 8, 1999 . Moon Struck . ... Explanation: Craters produced by ancient impacts on the airless Moon have long been a familiar sight . But now observers have seen elusive optical flashes on the lunar surface - likely the fleeting result of impacting meteoroids. ... It has been estimated that the brightest flashes were made by meteoroids weighing around a tenth of a kilogram, resulting in lunar craters about one meter across. ... About APOD > . ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope 's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication SSRT - Siberian Solar Radio Telescope . ...