... September 28, 1999 . Mystery Object Explained . ... The so-called mystery object appeared star-like but displayed colors unlike most stars or quasars . Further investigation has now revealed the object to be a Broad Absorption Line (BAL) quasar , a relatively rare type of active center of a distant galaxy. Different atoms and molecules in the absorbing gas surrounding the BAL quasar 's center probably cause the unusual colors. ... About APOD > . ...

Astronomy Picture of the Day . ... 28.09.1999 . ... The so-called mystery object appeared star-like but displayed colors unlike most stars or quasars . Further investigation has now revealed the object to be a Broad Absorption Line (BAL) quasar , a relatively rare type of active center of a distant galaxy. Different atoms and molecules in the absorbing gas surrounding the BAL quasar 's center probably cause the unusual colors. ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... Magnetic storms online . ... Geomagnetic activity forecast . ... August : 2015 . ... No magnetic storm is expected . From 26 August 2015 to 21 September 2015 the following magnetic storms and disturbances are expected: . September 12, 2015 geomagnetic disturbances . September 01, 2015 geomagnetic storm of level G1 (minor) . ... August 28, 2015 geomagnetic disturbances . ... September 20, 2015 geomagnetic disturbances 26 August 2015 - 21 September 2015 . 25.08.2015 . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... September Perseid meteors captured by the . ... Its occurrence provides astronomers with interesting new data about the hidden trails of meteoroids тАФ small bodies ranging in size from fine dust particles to objects of marble-size and larger тАФ in the solar system and their supposed sources: comets and asteroids passing through the inner solar system. ... The particular comet that created the September Perseids is unknown...

THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON AUGUST 2012 HAS MADE Waug.= 63.1, THAT GIVES FOR 38 MONTH (2012, FEBRUARY) DEVELOPMENT CURRENT 24 CYCLES OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*feb.= ... Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 27.08 - 02.09.2012, Forecast on 03 - 10.09.2012, Carrington Rotation 2127 (15,04.08.2012) SUNSPOT ACTIVITY OF THE SUN REMAINED AT THE AVERAGE LEVEL. ... GEOMAGNETIC ACTIVITY REMAINED QUITE AND ACTIVE. ...

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

This is a list of astronomical data available on the World Wide Web which I put together for a lecture at the NEON archive school, held at ESO in August 2006, organized by: . ... Mostly) Large Area Surveys and Catalogues , where "large" means covering at least ~ 10% of the sky, although a selection of some smaller-area surveys is also included; . ... The NRAO VLA Sky Survey (NVSS) [1.4 GHz] . ... SuperCOSMOS Sky Surveys USNO Catalogues . ... ESO Online Digitized Sky Survey Guide Star Catalogues . ...

... 23 September 2004 - Telescope First Light! ... 30 July 2004 . ... NIC-FPS is an instrument combining the capabilities of a near-infrared imaging camera with a cryogenic Fabry-Perot etalon currently under development at the Center for Space Astrophysics and Space Astronomy , University of Colorado with support from Rice University , Ball Aerospace and the Astrophysical Research Consortium. It is scheduled to begin operations on the ARC 3.5m telescope at Apache Point Observatory in 2004. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... Galileo Images of Io . ... Galileo Finds Giant Iron Core in Jupiter's Moon Io . ... Color Image of Io . This color image of Io was created by combining the color channels of the low resolution USGS Voyager controlled color mosaic with Tayfun Oner's high resolution Galileo mosaic. ... This pair of Hubble images of Jupiter's volcanic moon Io shows the surprising emergence of a 320-kilometer (200-mile) diameter, large yellowish-white feature near the center of the moon's disk (photo on the right). ...

... Galileo Images of Io . ... Galileo Finds Giant Iron Core in Jupiter's Moon Io . ... The temperature on Io's surface is about -143њ C (-230њ F); however, a large hot spot associated with a volcanic feature measured about 17њ C (60њ F). ... Io's rotation . ... This pair of Hubble images of Jupiter's volcanic moon Io shows the surprising emergence of a 320-kilometer (200-mile) diameter, large yellowish-white feature near the center of the moon's disk (photo on the right). ... Volcanic Plumes . ...

... The evolution of magnetic fields in OB-type stars from the study of open clusters of different ages . ... Wade G. A. The MiMeS Project: Magnetism in Massive Stars . ... Polosukhina N., Shavrina T., Drake N., Kudryavtsev D. Smirnova M. New results of the spectral observations of CPstars in the Li I 6708? spectral region with BTA telescope of SAO RAS . ... Magnetic Stars-2010 . ... List of participants . List of reports . ... Laboratory for the Stellar Magnetism Study of SAO of the RAS . ...

... Abstract . ... Probing Solar System History with Orbits, Masses, and Colors of Transneptunian Binaries . ... Systemic and Internal motions of the Magellanic Clouds: Third Epoch Images . ... Calibrating Cosmological Chronometers: White Dwarf Masses . ... Preliminary orbital determination for the KBO WW31, based on C. Veillet's analysis of CFHT observations; the linked image shows the improved orbital derivation, following the addition of HST imaging . ... Past weeks: . ...

... Telescopes . ... The International Conference "Dark Ages and White Nights (Spectroscopy of the CMB)" (June 20-24, 2016) . ... The International Conference "Stars: from collapse to collapse" (October 3-7, 2016) . The traditional annual competition conference of scientific and scientific-engineering papers of the Observatory staff members . ... A session of the Dissertation Council (October 16, 2015) . ... International scientific conference "Large Optical Telescopes" (October, 10-13, 2011) . ...

... Towards a Truly Unified Model of AGN . ... The Unified Model holds that the aspect-dependent effects primarily determine the nature of the active galactic nucleus that we observe. ... The full postscript file can be obtained here: . The PASA Latex file can be obtained here: . The postscript file of Fig 1 can be obtained here: . ...

... The IX Russian-Finnish Symposium will take place in Special Astrophysical observatory RAS on October 15-20, 2006. The symposium is sponsored by SAO RAS, Central Astronomical Observatory (Pulkovo, SPb) and by Russian Foundation of Basic Research . ... M. Mingaliev, chair (SAO), Yu. ... M.Tornikoski (Metsahovi observatory), E.Valtaoja (Tuorla observatory) . Sergei Truskhin (chair), Vladimir Bogod, Ekaterina Filippova, Larisa Martinova, Julia Sotnikova, Larisa Opeikina, Abdulah Uzdenov . ...

The main activities of The Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo . ... May 25-29, 2015 Pulkovo Observatory, Saint Petersburg, Russia . Institute of Applied Astronomy, Saint Petersburg, Russia . The All-Russian Astrometry Conference "Pulkovo-2015" . ... September 22 - 24, 2014, Pulkovo Observatory, Saint Petersburg, Russia . ... August 11 - 15, 2014, Pulkovo Observatory, Saint Petersburg, Russia . ... The European week of Astronomy and Space Science . ...

... You are here: start €Ё lbaops €Ё telecon2009aug27 . ... VLBI Schedule . ... Attendance: Shinji Horiuchi (SDCCC, Canberra);Claire Hotan, Aquib Moin, Cormac Reynolds, Hayley Bignall (Curtin); Tasso Tzioumis, Chris Phillips, Ettore Carretti ( ATNF Marsfield); Phil Edwards, Jamie Stevens ( ATNF , Narrabri); Brett Reid, Jamie McCallum (UTas, Mt Pleasant), Jim Lovell(UTas,Hobart); Richard Dodson, Maria Rioja (UWA) . ... vt11u to be mainly 8.4 GHz to match IVS observing at Parkes/Ceduna (Chris/Phil) . ...

Astronotes Armagh Planetarium's Stellar Blog! ... August . ... Posted on December 1, 2011 | No Comments St Patrick?s Academy in Dungannon is hosting a fantastic public event for stargazers this Saturday evening. This local school has its own observatory and astronomy club for the students [ ] . Continue Reading.. Posted on November 17, 2011 | ... Posted on October 10, 2011 | ... Posted on September 29, 2011 | ... Posted on August 18, 2011 | ... Posted on June 21, 2011 | ...

Summer Earth and Space Science Workshops for Teachers! ... Join us in Baltimore, Mar yland from July 30­ August 3, 2011 for one or more of the following: Weekend 2-Day Workshop , July 30­31 · In the Footsteps of Galileo: A Hands-on Workshop on Astronomy for Teachers Weekday 3-hour Short Courses, August 1­3 · Active Astronomy : Classroom Activities for Learning about the Electromagnetic Spectrum · Chasing Shadows: Bring NASA's Search for Earth-like Planets Around Other Stars ...