... Sun images . ... December : 2014 . ... Image of Sun's photosphere obtained 09.12.2014 at 23:53 UT with HMI instrument on board SDO spacecraft . ... Image of Sun's magnetic field obtained 09.12.2014 at 23:53 UT with HMI instrument on board SDO spacecraft . ... Image of Sun's transition region obtained 09.12.2014 at 23:39 UT with AIA instrument on board SDO spacecraft . Image of Sun's corona . Image of Sun's corona obtained 09.12.2014 at 23:38 UT with AIA instrument on board SDO spacecraft . ...

... The IB_TAIL magnetic conjugations with the others Spacecraft . ... ASCII file description | Plot description | ... ASCII file | real time plot . ... The IB_TAIL magnetic conjugations with the groundbased magnetic observatories . ... The IB_TAIL magnetic mapping polar diagram, and ASCII files for each decade of month: . ... ASCII files description | DEC 1 (ASCII file, size more then 350Kb!) ... Back to the IB_TAIL Home page. Updated 24 November, 1999 . ... INTERBALL mission  ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... V.N. Obridko . ... Oscillations . ... Solar cycle . ... Solar Corona . ... webmaster@izmiran.ru . ... B.A. Ioshpa, V.N. Obridko, B.D. Shelting . ... Solar Physics 29 (1973) 385-392. ... Quasi-biennial oscillations of the global solar magnetic field . ... Quasi-biennial oscillations of the solar global magnetic field . ... Quasi-biennial oscillations of the Solar magnetic fields . Proc. 10th European solar physics meeting",Solar variability: from core to outer frontiers", Prague, Czech. ...

... Jupiter's big moon Ganymede is not only the size of a planet -- it sounds like one too, as heard in audio recordings made from data returned by NASA's Galileo spacecraft released today. ... Characterized by a soaring whistle and hissing static, Ganymede's song reveals that the Solar System's largest moon is also the only one known to possess a planet-like, self-generated magnetic cocoon called a magnetosphere , which shields the moon from the magnetic influence of its giant parent body, Jupiter. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2005 December 1 . SOHO's Uninterrupted View of the Sun . Credit: SOHO Consortium , ESA , NASA . Image Montage: Steele Hill ( GSFC ) . Explanation: Launched ten years ago this week, SOHO (the SOlar and Heliospheric Observatory) still enjoys an uninterrupted view of the Sun. ... Happy tenth anniversary SOHO! ... About APOD | ...

... Maintenance and Work Completed on M1: September 10, 1999 . Whiffles Installed on M2: September 10, 1999 . M1 Support System Maintenance: September 10, 1999 . M1 Temperature Sensor Work and Repair: September 10, 1999 . M1 Hex-cell Deterioration: September 14, 1999 . ... M1 Whiffle Mount and M1 Back, September 21, 1999 . ... Views of Secondary Mirror (Back): April 13, 2000 . ... Front Portals: June 8, 2001 . ... M2 and M3 Baffle Work: June 8, 2005 . ... M3 Work: November 7, 2007 . ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...