... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. October 21, 1999 . Follow The Spots . Credit: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA . ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... About APOD > . ...

Astronomy Picture of the Day . ... 21.10.1999 . ... Credit Copyright: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA Explanation: The Sun rotates on its axis about once every 27 days. ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... October 1999 . ... 1999 2000 . ... Publications with keywords: Sun - solar rotation - sunspot . ...

Next: Preparing Data Frames Up: Object Search and Previous: What Data Frames . The user is advised to start working with this new kind of observational material by applying commands to small regions of an investigated frame in order to properly tune control parameters. ... Preparing Data Frames . Setting the Low and High Cuts . Setting the Keywords used by SEARCH/INV Command . Executing the ANALYSE/INV Command . Setting the Keywords used by the ANALYSE Command . ...

... Excel file with explanations how to fill; please, save the table in format not later Excel-1997-2003.) ... Rules and Regulations for a participant of the Olympiad that have to be translated into native languages of participants (if using Word, please, save the translation in format not later Word-1997-2003), attention for additions during last years ( blue and red text ): . ... Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the Asian-Pacific Astronomy Olympiad (APAO) . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Some 13.7 billion years ago, a mere millionth of a second after the Big Bang, the first hydrogen and helium nuclei condensed out of a hot, dense soup of quarks and gluons. ... In the very last few kilometres some of the light was scattered by a myriad of water droplets (containing hydrogen nuclei which had existed almost since the Big Bang) slowly descending through the air following a rainshower. ...

The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The following are astronauts who are employed at NASA. Astronaut assignments and category definitions (e.g., "active" astronauts, "management" astronauts) are contained in a separate Flight Operations Directorate (FOD) policy letter. Astronaut . ... Acaba, Joseph M. 2004 . ... Aunon, Serena M. 2009 . ... Barratt, Michael R. 2000 . ... Burbank, Daniel C. 1996 . ... Cassada, Josh A. 2013 . ... 1998 . ...

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... You Followed The Apology With The Same Foolish Insult . Forum List | Follow Ups | Post Message | ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...

... Team . ... GRB mini-workshop 2006 . ... 6-meter telescope BTA: . The monitoring of gamma-ray burst afterglows and the study of their host galaxies . Monitoring of core-collapse supernovae and investigation of their host galaxies . ... Supernovae and gamma-ray bursts . ... Are some GRB host galaxies lying in galaxy clusters? ... Supernovae and gamma-ray bursts (Within the scope of the international program "Astronomy in Prielbrusiye") . ... The physics of gamma-ray bursts in the SWIFT era . ...

... The orbits as follows are considered: INTERBALL Tail Probe (IB_TAIL) & Auroral Probe (IB_AUR), GEOTAIL (NASA/ISAS), and POLAR (NASA). ... The situation investigation aim is to select the following favourable spatial positions (FSP) : . ... FSP3 : That part of the FSP1 & FSP2 time intervals, which corresponds to the magnetic conjugations of the any couple of the considered spacecraft. ... The polar diagram plot . ... The geocentric distance (GCD) of the 4 spacecraft as a function of the time. ...

... From a Bang to a Whimper - Celebrating Differing Views of the Universe - Tuesday 12 May 2009, Trinity College Dublin . ... Constructing a 16 inch Dobsonian Telescope: Monday 11 May 2009, Ballyclare . тАШ Discover the Stars at ArmaghтАЩ - the second Cross-Border Schools Science Conference, an International Year of Astronomy 2009 event, took place in Armagh on Wednesday 29th and Thursday 30th April 2009. ... International Year of Astronomy, Ireland National Node . ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Following the Martian Coastline . ... It seems scientists and laypeople alike have wondered for quite a long time whether or not water exists on Mars. ... A second reason we should determine the sites of ancient Martian seas is that if water once existed on Mars, it is possible that conditions for life obtained on the planet in the past and possibly even persist into the present. ...

Procedure to be followed by DMD secretary for DFS Group documentation . Initial email comes from author requesting document number. ... An email is then sent by the DMD secretary to the Technical Archive (tecarch@eso.org) with the same information, to request the last 4 digits of the document number (the 'chronological number'). ... Some time will pass and then the author, using the DFS Group tool 'WebCheck', will post a web readable version of the document on the DFS Group website. ...

. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1997/08 Japan (Kyoto, Nara) :: 17/08 Kyoto streets. Maruyama park . Up . << Prev . The procedure is as follows: put a coin into special box, pull a cord (the bells will chime), clap hands and bow. Don't forget to tell god about your wishes. You see the woman at the left in the end of the prayer. Next >> . Photo album generated by album from Dave's MarginalHacks on Wed Jun 5 20:38:35 2013 .

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Parkes | ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... The follow up 21cm synthesis observations on the galaxies found by this survey are essential for a number of reasons. ...

... solar system . ... Solar eclipse travelogue: Sulawesi delivers a spectacular eclipse . ... Observe the Solar System . ... Tour the Solar System . ... Do the paths of totality during solar eclipses follow a pattern that repeats after a certain period? ... RELATED TOPICS: SOLAR ECLIPSE . Total eclipses follow a period known as the saros, which is 18 years and 11 1/3 days long. ... Get instant access to subscriber content on Astronomy.com! ... Join Astronomy for America's 2017 total solar eclipse! ...

... Laboratory and theoretical modelling of the UV bump on the interstellar extinction curve is a very popular topic in dusty investigations. ... feature is illustrated by Fig. 10 where the profiles were calculated using the model of graphite spheres. Figure 10: Normalized extinction efficiencies for graphite spheres. ... The lower panel shows the summary extinction of two graphite spheres with radii and (from upper panel) taken in equal proportions. ...

. Search for a cluster by name: . Otherwise, search within a radius: . RA: . Dec: . Radius (arcmin): . Download the catalogue of AMI results (FITS format)

The following files list line and continuum emissivities from the Arcetri Spectral Code. ... Ne = 10^8 g-zipped file (phot cm^3 s^-1); Ne = 10^8 g-zipped file (erg cm^3 s-1) . ... File format (html): File format for the continuum files . ... File format (html): File format for binned line emission files The following files list transitions whose emissivities have values greater than a fixed amount (10^-19 phot s^-1 cm^+3 and 10^-30 erg s^-1 cm^+3 respectively): . ...

. Other Relevant Plots . Several new Radio-loud BAL QSOs . A unique Q+A QSO . | Front page | . | << - Close pairs | Talk summary - >> | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .