... Sun images . ... Sun flares . ... Active areas . December : 2009 . ... No sunspots and sunspot groups can be currently observed on the Sun's surface . No H-alpha plages without spots can be currently observed on the Sun's surface . Last updated: December 10, 2009 00:00 UT . ... 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

... ESO Science Newsletter December 2015 . 17 Dec 2015 . ... This newsletter is a summary of recent ESO Science Announcement items. Follow the links or visit ESO Science Announcements to read more. ... Read more . ... The allocation of ESO telescope time for Period 97 (1 April БЂ“ 30 September 2016) is expected to be emailed in the week beginning 21 December 2015. ... ESO Workshop, ESO Headquarters, Garching, Germany, 27 June БЂ“ 1 July, 2016 . ... Joint ESO, ALMA, NAOJ, NRAO Workshop. ...

... 2006 December 4 . Movie: The Active Sun . Credit: Solar Optical Telescope, Hinode Satellite , JAXA . ... Near the horizon, active regions around a sunspot eject hot plasma along the magnetic field lines that connect the sunspot to surrounding regions in the solar atmosphere . ... This frame from the movie is in representative color and covers a solar region of about 8,000 kilometers. ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . ...

Astronomy Picture of the Day . Centaurus A: X-Rays from an Active Galaxy . ... The diffuse high-energy glow represents gas throughout the galaxy heated to temperatures of millions of degrees C. At 11 million light-years distant in the constellation Centaurus , Centaurus A (NGC 5128) is the closest active galaxy . ... Publications with keywords: Centaurus A - NGC 5128 - active galaxy . Publications with words: Centaurus A - NGC 5128 - active galaxy . ... Hubble Remix: Active Galaxy NGC 1275 . ...

We present Spitzer 3.6-160 О?m images, Spitzer mid-infrared spectra, and JCMT SCUBA 850 О?m images of the Sombrero Galaxy (NGC 4594), an Sa galaxy with a 109 Msolar low-luminosity active galactic nucleus (AGN). The brightest infrared sources in the galaxy are the nucleus and the dust ring. ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Active Algol Binary KZ Pavonis . ... The Algol type eclipsing binary KZ Pav has been observed over one complete orbit (0.95 days) with the Australia Telescope Compact Array. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . This year's annual Geminid meteor shower is active during the period December 7 - 17, with the peak of activity occurring during the night of December 13th/14th. The Geminid shower is currently one of the best of the major annual meteor displays, usually having a high number of relatively bright, medium-speed (130,000 km per hour) shooting stars. ... Last Revised: 2009 December 7th . ...

... SAO RAN RATAN-600 EXCURSIONS 40 YEARS of R/T . ... GPS radio sources . ... T.V. Mufakharov, M.G. Mingaliev, Yu.V. Sotnikova, Ya. ... M.G. Mingaliev, Yu.V. Sotnikova, R.Yu. ... Erkenov A.K., Mingaliev M.G., Sotnikova Yu.V., "Bright sources monitoring at the RATAN-600 during the Planck Mission", in XI Russian-Finnish Symposium on Radio Astronomy "Multi-Wavelength Investigations of Solar and Stellar Activity and Active Galactic Nuclei", Abstracts, Pushchino, Russia, October 18-22, p. 6, 2010. ...

... 78.0, THAT GIVES FOR 65 MONTHS (2014, JUNE) DEVELOPMENT CURRENT 24 CYC- LES OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*June = 79.7 THE BEGINNING 24 CYCLES OF SOLAR ACTIVITY - I 2009 with W*=1.8 THE TIME OF THE CURRENT CYCLE MAXIMUM - IV 2014 THE HEIGHT OF THE MAXIMUM - Wmax = 81.9 THE INTERNATIONAL DAILY VALUE OF RELATIVE SUNSPOT NUMBER FOR 2014, DECEMBERR ACCORDING DATA OF 71 SOLAR OBSERVATORIES HAS MADE: 1.. 96 6.. 42 11.. 75 16..119 21.. 93 26.. 60 31.. 65 2.. 85 7.. 39m 12.. ...

Product: Report of Solar-Geophysical Activity :Issued: 2016 Apr 08 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. ... Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been at low levels for the past 24 hours. ... Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. ...