Main Sections LabIR main page . ... LabIR staff . ... Tirgo Page . ... The TIRGO NIR photometer uses a single InSb detector with cooled low-noise amplification electronics. ... Results of the TIRGO calibration program: 1986-1987" L.K. Hunt, G.Calamai, and E. Oliva Arcetri Technical Report No. ... Near-infrared photometry at the Gornergrat Infrared Telescope" L.K. Hunt Arcetri Technical Report No. ... Manuale del nuovo sistema di controllo del Fotometro del TIRGO" C.Baffa Arcetri Technical Report No. ...

... Information about a variety of different calendars for different cultures (e.g., Christian, Jewish, Muslim, Chinese, Hindu etc.) ... In addition, the Chinese had two different ways of interpreting and observing celestial events. One way the Chinese used astronomy was known as lifa; it was a discipline that aimed to understand the regularities and the predictable events in the celestial system through careful, observations, measurements and records. ... back to Teachers' Newsletter Main Page ...

For solar wind dials without any explanatory text, see this page . ... There are three logs, one for each condition index ( K P , Solar Wind ,and NOAA/SEC .) ... More about the solar wind's recent behavior can be found on my Current Solar Wind Conditions page. ... Other items of interest include NOAA/SEC Current Conditions , my composite current Auroral Images page, Windows on the Universe: Space Weather , and Public Outreach Index, Department of Space Physics and Astronomy, Rice University . ...

... Team . ... The main goal of observations of GRB host galaxies is accumulation of statistics of their spectroscopic and photometric properties. ... The Hubble diagram for 22 GRB host galaxies with known magnitudes and redshifts (GRB 970228, GRB 970508, GRB 970828, GRB 971214, GRB 980613, GRB 980703, GRB 990123, GRB 990510, GRB 990712, GRB 9912008, GRB 991216, GRB 000131, GRB 000210, GRB 000301C, GRB 000418, GRB 000911, GRB 000926, GRB 001109, GRB 010222, GRB 010921, GRB 011121 and GRB011211). ... 600...

... Precisely one month ago, on 11 July 2009, the last active area of the new solar cycle disappeared from the surface of the Sun. Over the 30 days following this, neither observers on Earth nor devices in space have been able to detect the emergence of any sunspots. ... Therefore, it seems that our star has once again returned to a state of deep solar "winter", following several sparks of activity in May-June 2009. ... To date, this period has lasted 30 days. ...

Selected Geomagnetic and Solar Activity Indices Worldwide Indices The subscript p means planetary and designates a global magnetic activity index. ... Each activity level relates almost logarithmically to its corresponding disturbance amplitude. ... Records contain * Zurich number through December 31, 1980 * International Brussels number thereafter 66-70 f5.1 Ottawa 10.7 cm Solar Radio Flux adjusted to 1 AU - measured at 1700 UT daily and expressed in units of 10^-22 W/m^2/Hz. ...

... LINKS . ... 0 total, enter for more, latest pics follow . AAL Activities . ... 105 total, enter for more, latest pics follow . ... Internet Time: @850 . ... INTELLIGENT-IP Internet Services . SOME LINKS . ... more links.. ... The AAL is not responsible for the content of external internet sites! ... Coordination & Astronomical Content by: J. Steinberg ...

The following activities are included in the Universe at Your Fingertips guide. ... Clicking on each activity will take you to a "reviews" page where you can post a review, or read reviews posted by others who have used the activity. ... Activity Online . ... MOON AND PHASES . ... Observing Phases and Features . ... Modeling Moon Phases . ... SUN AND SEASONS . ... Observing the Sun Safely . ... Observing Where the Sun Sets . ... Making Pictures of Motion . ... Morning Star and Evening Star . ...

... Most of the spirals discussed in the following are well-known starburst galaxies (M 82, NGC 253, etc.) In addition to their nuclear activity, which makes them so popular, the selected galaxies have several other phenomena in common, such as bars, gas outflow, and possibly nuclear rings. ... I compare the group of nearby starburst galaxies with distant ultra-luminous galaxies (Arp 220, NGC 6240, etc.), in which strong tidal interactions cause the radial gas inflow. ...

... 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 . ...

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums . ... Summer Activities . Forum List | ... Post Message | ... Posted by Byron Javier on February 10, 2007 23:21:17 UTC . Summer is coming! ... 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" . ...

Gerry Doyle's homepage . Watch this space!

SPACETELESCOPESCIENCEINSTITUTE SPACETELESCOPESCIENCEINSTITUTE Summary of FOC Activities for the period 10 August -- 8 September 1994 FOC Status . ... Calibration/Engineering Activities . ... 5136 A Color­Magnitude Array in the Bulge of M31 5138 A Color­Magnitude Array of NGC6397 5301 Structure and Populations of Globular Clusters 5644 UV Observations of Globular Clusters . ... 1994 SPACETELESCOPESCIENCEINSTITUTE Summary of FOC Activities for the period 10 August -- 8 September 1994 Other Activities . ...

... Science . ... Science Users Information > Science Publications > Science Announcements > Real Time Follow-up of Transient Objects From PESSTO . ... Observing Facilities . ... Observing with ESO Telescopes . ... Data Handling and Products . ... ESO Data . ... The Public ESO Spectroscopic Survey of Transient Objects ( PESSTO ) provides high-quality, time series optical and near-infrared spectroscopy of optical transients covering a broad range of luminosity, host metallicity and explosion mechanisms. ...

The IAO-type events have to stimulte the science-educating style of the Olympiads. To follow the main science-educating principles of the IAO-type events and Schools for Young Astrophysicists , particularly: . ... The minimum duration of the IAO-type event is defined as 5 days (4 nights). ... foreign language teams for an international IAO-type event - 1 / 2. ... The full text of the current Supplementary Instructions N 4 IAO-type events and Schools for Young Astrophysicists to be presented later. ...

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 . ...

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. ...

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 . ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 15 - 21.06.2015, Forecast on 22 - 29.06.2015, Carrington Rotations 2164, 2165 (21,44.05; 17,64.06.2015) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS AT THE AVERAGE LEVEL. ... FLARE ACTIVITY WAS AT THE AVERAGE LEVEL ON JUNE, 18, 20 AND 21.06, AT THE LOW LEVEL IN OTHER DAYS. ... HOWEVER 21.06/1645 UT ALL GEOMAGNETIC OBSERVATORIES NOTED ARRIVAL TO THE EARTH OF THE INTERPLA- NETARY SHOCK WAVE FROM FLARE EVENTS ON JUNE 18. ...