... Now rotating behind the Sun's visible edge, these groups followed close on the heels of another enormous sunspot group which appeared in mid July. ... While individual sunspots are not numbered or cataloged, groups of sunspots, designated solar active regions, are given consecutive numbers as they appear on the visible solar disk . ... Publications with keywords: Sun - sunspot - active region . Publications with words: Sun - sunspot - active region . ... An X Class Flare Region on the Sun . ...

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• Астронет > Sunspots and Solar Active Regions
• Large Sunspot Group AR 9393
• Journal "Peremennye Zvezdy"

... 2002 August 1 . Sunspots and Solar Active Regions . ... Explanation: July was a good month for sunspots ... really big sunspots. ... While individual sunspots are not numbered or cataloged, groups of sunspots, designated solar active regions, are given consecutive numbers as they appear on the visible solar disk . That numbering began on January 5, 1972 and on June 14, 2002, reached active region number 10,000. ... About APOD | ...

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• APOD: 2008 September 24 - Active Region 1002 on an Unusually Quiet Sun
• APOD: 2002 July 18 - Sunspot Region 30
• APOD: September 23, 1998 - Autumn and the Active Sun

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

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... Sun images . ... Sun flares . ... Active areas . September : 2015 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT . ...

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• Sunspots and active regions January 01, 2011
• Sunspots and active regions January 01, 2009
• Sunspots and active regions January 01, 2008

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. ...

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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... A sketch for the active region model on ultracool dwarfs. ... An active region model was built, based on the rotation of the UCD and the ECMI mechanism. ... The active region model is applied to the radio emission from TVLM 513-46546, in which the ECMI mechanism is responsible for the radio bursts from the magnetic tubes and the rotation of the dwarf can modulate the integral of flux with respect to time. ...

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• Solar Active Region 10999 by Deirdre Kelleghan | International Year of
• IAJ: Contents - Volume 23 Number 2
• IAJ: Contents - Volume 23 Number 1

Data Archive . Video-records archive . ... 1997 | ... Time (UT) Counter Remarks _______________________________________________________________________________ 05.01. 10:29:17 2:06:42 scan disk 11:58:23 2:11:19 active regions 06.01. 09:49:51 2:12:17 scan disk 10:56:24 2:19:10 active regions 12.01. 09:39:12 2:19:59 scan disk 10:03:41 2:27:51 active region 10:05:09 2:28:34 filament 10:07:17 2:29:10 ...

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THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON SEPTEMBER 2014 HAS MADE Wsep.= 87.6, THAT GIVES FOR 61 MONTHS (2014, march) DEVELOPMENT CURRENT 24 CYC- LES OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*mar. ... Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 29.09 - 28.09.2014, Forecast on 29.09 - 05.10.2014, Carrington Rotation 2155 (17,72.09.2014) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS AT THE HIGH AND AVERAGE LEVELS. ... THERE IS 3 EJECTIONS OF THE SOLAR FILAMENTЫ. ...

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• http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20140303.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2012/obzor20120308.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20140929.en.txt

... Data Reduction FAQ > A number of OmegaCAM filters show vignetting in their central regions. What are the causes for this and what are the dimensions of these features? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... ESO HST Image Galleries . ... ESO Data Access Policy . ... ESO Science Newsletter . ... A number of OmegaCAM filters are not monolithic, but consist of four segments (each covering 8 detectors) that have a central cross-shaped support structure. ... Filter . ...

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• ESO - Newsletter December 2015
• ESO - Science Announcements
• ESO - Thesis Topic: Planetary Nebulae and HII regions in the Elliptical Galaxy

Target names are used to provide unique designations for the targets that will be used throughout the proposal. These names will generally also be used in Phase II, and ultimately to designate targets in the HST data archive. ... This facility will be most useful if consistent naming conventions are used. ... If a target is not contained in these catalogs, other catalog designations may be used (e.g., 4U X-ray catalog designation, Villanova white-dwarf catalog number, etc.) ... Target Type . ...

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• Active galaxies and black holes
• The Hubble Deep Field: Number Counts, Color-Magnitude and Color-Color Diagrams
• HST this week: 267

RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...

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... Basic Research results General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication of data Possibilities of observing the structure and dynamics of microwave activity SSRT - Research results . ...

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Automatic Classification of Sunspot Groups Using SOHO/MDI Magnetogram and White Light Images David Stenning March 29, 2011 1 Introduction and Motivation Although solar data is being generated at an unprecedented rate, the majority of sunspot classification is done manually by experts. ... This is to smooth the "white" areas in the magnetograms. ... Left: Inverse Magnetogram Right: "Opened" Inverse Magnetogram 6 Using the cleaned images, sunspot active-region "seeds" are obtain by thresholding. ...

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• Spatial Region Coordinates
• Marker Analysis Routines in SAOtng
• Jonathan's ASC/SDS documents

... Sunspots are manifestations of magnetically disturbed conditions at the Sun 's visible surface. ... Sunspot appear often in groups, and the sunspot number R is defined as R = k ( f + 10 g ), where f is the total number of spots visible to the observer, g is the number of disturbed regions (single spots or groups of spots), and k is a constant for the observatory related to the sensitivity of the observing equipment. Sunspots display a clear 11-year cycle in their number and latitude. ...

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• Sun [Oulu]
• The Sun
• On-Line Glossary of Solar-Terrestrial Terms

Total number of pointings to be observed in survey : 2670 Number of unique pointings observed so far: 2350 Number of unique ptgs on processed tapes : 0 Number of pointings on dud tapes : 88 Number of processed pointings on dud tapes : 0 Number of non- survey pointings found : 29211 Number of short or test survey pointings ...

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• VLBI Wiki | Main / LBASep2015
• VLBI Wiki | Main / OutSession2006
• VLBI Wiki | Main / LBASep2012

... 331, P 1-10 (1998). Abstract . ... Intergalactic He II absorption and the baryonic content of the Lyman forest . ... 331, P 81-120 (1998). ... 331, P 147-161 (1998). ... 331, P 162-166 (1998). ... 331, P 167-170 (1998). ... 331, P 171-178 (1998). ... 331, P 179-186 (1998). ... 331, P 187-192 (1998). ... 331, P 193-210 (1998). ... 331, P 211-223 (1998). ... 331, P 224-230 (1998). ... 331, P 231-243 (1998). ... 331, P 244-250 (1998). ... 331, P 251-261 (1998). ... helpdesk@link.springer.de ...

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• Springer LINK:A&A-EE: Table of Contents Volume 323 Number 3 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 318 Number 1 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 320 Number 3 (1997)

. To display the state of any background jobs that you are currently running use the job command. For example: jobs [1] + Running xterm -g 90x55 [2] - Running xterm -g 90x55 . This displays the job number, its state and the command associated with this job. To display the process number use the -l option. For example: jobs -l [1] + 3584 Running xterm -g 90x55 [2] - 3587 Running xterm -g 90x55 .

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• Bring a job into the foreground
• MicroEMACS Quick Reference

Short-Period Comets: Origin and Terrestrial Impact Hazard . ... The model is consistent with the basic observed distributions of near-parabolic comets, short-period comets, Centaurs and high-eccentricity trans-Neptunian objects.This model requires that initial objects in the early Solar System are concentrated to the outer planetary region, and the physical lifetime of comets in the inner planetary region at the present epoch is an increasing function of initial perihelion distances. ...

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• (Untitled)

One of the first light images taken on April 22, 1998 in 195 Angstroms . Loops viewed on April 25, 1998, seen in 171 Angstroms. ... Active Region seen on April 26, 1998 in 171 Angstroms . ... Flare observed in 1216 Angstroms on May 19, 1998 . ... Post flare loop observations on August 16, 1998 observed in 171 Angstroms . Post flare loop observations on August 16, 1998 observed in 195 Angstroms . ... Active regions observed on August 19, 1998 in 171 Angstroms . ...

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• A collection of images
• APOD: October 18, 1999 - NGC 3603: An Active Star Cluster
• APOD: June 16, 1998 - An Active Region of the Sun

Astronomy Discussion Forums . Forums: . ... How Do You Feel About Numbers? ... Post Message | ... Posted by Richard D. Stafford, Ph.D. on September 15, 2002 16:22:25 UTC . ... Wait - harvey1 - September 15, 2002 - 22:20 UTC . I don't follow you! - doctordick - September 16, 2002 - 14:59 UTC . ... 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" . ...

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• Holostars: Black Holes Without Event Horizons - an Astronomy Net Blackholes2
• A Number Is A Very Specific Thing - an Astronomy Net Exploration Forum Message
• Nothing? Beyond Numbers... - an Astronomy Net God Science Forum Message