Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 11 - 17.01.2016, Forecast on 18 - 25.01.2016, Carrington Rotations 2172, 2173 (25,50.12.2015; 21,83.05.2016) SUNSPOT-FORMING ACTIVITY WAS AT THE LOW LEVEL 12-13.01 AND ON THE MIDDLE LEVEL IN OTHER DAYS. ... THE MIDDLE AND THE LOW LEVELS OF THE SUNSPOT-FORMING ACTIVITY IS EXPECTED ON THE NEXT WEEK. ... THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT WAS BE- GINNING AT 1.01/2035 UT AND WAS OBSERVED 1- 10.01. ...

... Sun images . ... Sun flares . ... Active areas . September : 2008 . ... 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: September 10, 2008 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 . ...

... September 23, 1998 . Autumn and the Active Sun . ... This Autumnal Equinox finds an increasingly active Sun steadily approaching a solar cycle maximum expected around the year 2003. The solar activity cycle is driven by a periodic winding up of the Sun's internal magnetic field. ... Growing in number , the intricate structures visible are the Sun's hot active regions with temperatures over a million degrees Fahrenheit and their associated magnetic loops. ... About APOD > . ...

Astronomy Picture of the Day . ... Credit Copyright: Courtesy TRACE Team , NASA Explanation: As the Sun heads South, crossing the celestial equator today at 1:37 a.m. Eastern Time, Autumn begins for Earth's Northern Hemisphere. This Autumnal Equinox finds an increasingly active Sun steadily approaching a solar cycle maximum expected around the year 2003. ... September . ... Publications with keywords: Sun - equinox - solar cycle . Publications with words: Sun - equinox - solar cycle . ...

... 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 . ...

... Science . ... Science Users Information > Science Publications > Science Announcements . 10 Apr 2016 jump to navigation jump to content . ... Observing with ESO Telescopes . ... Phase 1 Proposals . ... Phase 3 . ... Data Handling and Products . ... Science Data Products Forum . ... ESO Data . ... Science Announcements . ... Published: 18 Jan 2016 . ... The submission deadline for Phase 2 Service Mode observations is 4 February 2016 ; see separate announcement . ... Published: 17 Dec 2015 . ...

... Projects . Data transfer . ... PPTA projects and allocations . ... Time active (d) . ... Not active . ... PPTA data release 2 . ... unallocated Study timing noise in PPTA pulsars . ... unallocated Reprocess P140 data with PPTA pipeline . ... unallocated Consider the optimal observing strategy for PPTA pulsars . ... unallocated Application of cyclic spectroscopy to PPTA pulsars . ... Profile Domain Pulsar Timing: Developing and applying techniques to PPTA data. ... Tue, 24 Nov 15 03:36:53 +0000 . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... active galactic nuclei . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... 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: . ...

... 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 . ...