... 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 | ...

... 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. ...

... Aurora - June 23, 2015 . Sunspot, Active Region AR2371, produced an M2 class flare and sent a coronal mass ejection toward the Earth on June 21st. ... A meteor trail, airplane and clouds are also in the image. 30-second image with dark slide, Samyang 14mm, f/2.8 lens imaged at f/5.6, Unmodified Canon T1i on a Tripod, No filter, ISO 800, processed with Adobe Photoshop. 00: 17 hrs EDT, 23 June 2015, Harvard, MA. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... A Large Active Region Crosses the Sun . ... Credit Copyright: Jack Newton Explanation: An unexpectedly large sunspot region is now crossing the Sun. The active region is home to rivers of hot plasma , explosive flares , strong magnetic fields , a powerful Coronal Mass Ejection (CME), and a sunspot group so large it can be seen by the protected eye without magnification. ... Publications with keywords: Sun - sunspot - active region . Publications with words: Sun - sunspot - active region . ...

... 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 . ...

... X CB (X) Opening of a set X by a disk B. Closing of a set X by a disk B. Science-Driven Feature Selection (a) (b) Mount Wilson Classification The Mount Wilson classification scheme groups sunspots into four classes based on the complexity of magnetic flux distribution in associated active regions [1]: class : groups dominated by a single unipolar sunspot class : a pair of sunspots of opposite magnetic ... Convex hulls are utilized to measure polarity mixture in (j). ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. June 16, 1998 . An Active Region of the Sun . Credit: A. Title ( Stanford Lockheed Institute ), TRACE , NASA . ... This false-color image depicts an active region near an edge of the Sun . Hot plasma is seen exploding off the Sun's photosphere and traveling along loops defined by the Sun's magnetic field . ... About APOD > . ...

... You are here: start ТЛ lbaops ТЛ lbajun2013 ТЛ v490a . ... VLBI Schedule . ... Observer's Wiki . ... lbaops:lbajun2013:v490a . ... Setup v490a.1cm-icrf: . ... Channel 1 . IFP#1-LO 22000 - 22016 MHz USB RCP . ... IFP#1-HI 22016 - 22032 MHz USB RCP . ... IFP#2-LO 22500 - 22516 MHz USB LCP . ... IFP#2-HI 22516 - 22532 MHz USB LCP . ... Setup v490a.1cm: . ... Ftp: ftp://ftp.atnf.csiro.au/pub/people/vlbi/v490/v490a . ... lbaops/lbajun2013/v490a.txt ТЗ Last modified: 2015/12/18 16:38 (external edit) . ...

. R=4.7k-10 kOhm . Ca=Cc=2*Cb . Cb=Cd=1/(2*sqr(2)*pi*Fc*R) . Units: R [Ohm], Cx [F], Fc [Hz] . Contributor: Joakim жgren Source: ? Please send any comments to Joakim жgren .

... ESO PR Photo 07a/01 . ... ESO PR Photo 07b/01 . ... Caption : PR Photo 07a/01 shows Comet Hale-Bopp , still active at a distance of nearly 2,000 million kilometres from the Sun. ... This is quite unusual for a comet and is clearly confirmed on the present photo ( PR Photo 07a/01 ) from the WFI camera on the MPG/ESO 2.2-m telescope at La Silla, obtained a few days ago. ... ESO-Chile . ... ESO PR Photos 07a-b/01 may be reproduced, if credit is given to the European Southern Observatory (ESO). ...

... 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 . ...

... 2 April 1999 . The Nobeyama Radioheliograph data show that in the microwave range, besides large-scale trans-equatorial chains (see, e.g., the May 11-15, 1993 and November 1-4, 1993 events), there are also many examples displaying large and strongly evolving "longitudinal" or "internal" chains connecting remote active regions inside an active zone in one (northern or southern) hemisphere (the August 20-September 3, 1998 event). ... Last update: 2 April 1999 . ...

Galaxies are diffuse objects which are imaged against a background of finite brightness and noise. Galaxies which have the maximum contrast with respect to this background are the ones that are first discovered. ... These galaxies have been missed to date but active surveys for them are underway. ... In this page we present several examples of these newly discovered Low Surface Brightness galaxies as well as examples of high surface brightness galaxies. ...

From: TerryMosel aol.com Date: Tue, 28 Dec 2004 18:55:34 EST Subject: NASA astronauts in Dublin, Comet Hi all, Ruth Hegarty of the RIA has informed me of this: "Science and the Technology of Space Active NASA Astronaut Cdr Scott Kelly and retired Space Shuttle Commander Brian Duffy, will be appearing in the Burke Lecture Theatre, Trinity College on Wednesday 12 January 2005 at 7.30 p.m. sharp. ... Hapy New Year to you all, Terry Moseley . ...

The silicates that produce the 10 and 18 micron features appear to be broadly similar to terrestrial minerals such as Forsterite and Enstatite. ... Where pre-solar silicate dust grains can be isolated from meteorite material, these also tend to be Mg-rich silicates rather than Fe-rich silicates. ... It has been suggested that the interstellar silicate grains have a different 10 micron feature profile than what is observed for the silicates around evolved stars. ...

... Pre-university education . ... Samara region . SSAU History . SSAU roadmap . ... Samara State Aerospace University (SSAU) will take an active part in the work of space activities of the United Nations organization (UNO). ... The road map shape on inclusion of Samara University into implementation of the UN Program on Space Applications was outlined at the roundtable discussion with the University teachers and specialists and at the meeting with SSAU Rector Yevgeniy Shakhmatov. ...

... Коллекция: Весна-лето 2016 . ... Кроссовки Zenden Active. ... title=' fashion наручные женские часы Festina 16592.3. Коллекция Dream - Festina' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> Часы, минуты, секунды. ... Кроссовки Nike - Nike - Nike . ЖЕНСКИЕ НОСКИ ДЛЯ БЕГА 2 ПАРЫ ASICS 2PPK SOCK . ... Японские наручные мужские часы Orient QC0P001B. Коллекция Classic Design - Orient - Orient . ... fashion наручные мужские часы Mistura TP13019CJPUPHWD. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil La com†иte Chury toujours active . ... Cette photo prise le 1 er mars 2016, †а seulement 26,7 km de distance, met en †йvidence un beau jet de mati†иre qui s'†йchappe en bordure des r†йgions Imhotep et Bes, sur le lobe de l'h†йmisph†иre Sud de la com†иte. ... Etat du ciel ...

XMM-Newton Science Analysis System . ... The exposure maps suffer from a minor potential double-counting error. If a bad pixel is not known to the DPP, and is not present in the telemetry, and is of the variety that tends to be hot, then it is possible that it has been rejected on-board. Such bad pixels effectively subtract twice their active time from the map, once as an individual bad pixel, and again in the fractional exposure applied to the entire node. XMM-Newton SOC/SSC -- 2007-07-09 ...

Table of Contents - Subject Index - Author Index - . Astronomical Data Analysis Software and Systems IX . ... Reduction of Adaptive Optics Images . ... GBT Active Optics Systems and Techniques . ... A User-Friendly Way to Optimize Adaptive Optics: NAOS Preparation Software . ... QuickLook Data Reduction Pipeline - Keck Adaptive Optics Real Time Data Reduction Software . ... NAOS Computer Aided Control: an Optimized and Astronomer-Oriented Way of Controlling Large Adaptive Optics Systems . ...