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 . ...

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

Observational Stellar Astronomy . Articles | ... We are made of star stuff" . ... TEMPERATURE OF A STAR: . ... The temperature of a star can be found out easily by simple observations. ... STAR . ... SPECTRAL CLASS: . All the stars in this universe are divided in to spectral classes based on their spectral lines. ... The spectral class of a star and the temperature of a star are related. So the spectral class can be found for a star since we know its temperature. ... www.astronomy.net . ...

National Aeronautics and Space Administration . ... Bruce McCandless II (Captain, USN, Ret.) NASA Astronaut (former) . ... He was a member of the astronaut support crew for the Apollo 14 mission and was backup pilot for the first manned Skylab mission (SL-1/SL-2). ... A veteran of two space flights, McCandless has logged over 312 hours in space, including 4 hours of MMU flight time. ... With the completion of this flight McCandless logged 191 hours in space (including 4 hours of MMU flight time). ...

... Spacecraft . 29b. Satellites looking down . ... 29e. Explorers of distant space . ... The Hubble orbiting telescope. ... The Hubble telescope , in low Earth orbit, overcomes such limitations, in the visible range and in part of the UV. ... So fruitful was this observation that a second "deep field" exposure of such length, near the southern pole of the heavens, was recently conducted. ... Some satellites specialize in observing the Sun, such as the Japanese Yohkoh and NASA's SOHO . ...

... R2514 Date Received: 2009-Jun-01 09:34:28 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Planetary Radar Solar System 14 Hours 2.0 h M- and E-class main-belt asteroid radar observations We continue our long term goal of observing M- and E-class main belt asteroids (MBAs) with the S-band radar system. ... Our continuing survey of these ob jects will help us determine their composition and nature. ...

... Class . ... java.lang.Object ij.ImagePlus ij.CompositeImage . ... public class CompositeImage . ... CompositeImage ( ImagePlus imp, int mode) . ... Copies the LUTs and display mode of 'imp' to this image. LUT . ... public CompositeImage ( ImagePlus imp, int mode) . ... public void setLuts ( LUT [] luts) . ... Does nothing if 'imp' is not a CompositeImage or 'imp' and this image do not have the same number of channels. public void reset () . ... public void setChannelLut ( LUT table, int channel) . ...

... no comet has been observed with an orbit that indicates that it came from interstellar space, . ... From this he proposed that comets reside in a vast cloud at the outer reaches of the solar system. ... Unfortunately, since the individual comets are so small and at such large distances, we have no direct evidence about the Oort Cloud. ... T he Kuiper Belt is a disk-shaped region past the orbit of Neptune roughly 30 to 100 AU from the Sun containing many small icy bodies. ... Small Bodies .. ...

... Bojan Nikolic web pages (r. 329) . Lectures and related materials . Lecture I (12 January 2012) PDF . ... Lecture III (26 January 2012) PDF . Lecture IV (9 February 2012) PDF . ... Lecture VII (1 March 2012) PDF . Lecture VIII (8 March 2012) PDF . ... http://www.cv.nrao.edu/course/astr534/ERA.shtml . ... Astrophysical techniques graduate course . Lecture Slides . ... Statistics for astronomy graduate course . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

... ARCSAT ID NUMBER: AS09 DESCRIPTIVE TITLE: Monitoring H-alpha Variability in Be Stars in Young Clusters PI: Steven Souza (Williams College) OBSERVER(S): Steven Souza UNCERTIFIED/UNTRAINED OBSERVERS: summer research students Hallee Wong (Williams College '18), Aylin Garcia Soto (Wesleyan University '18) COLLABORATORS: none CONTACT INFORMATION: Steven Souza; ssouza@williams.edu; 413-441-9892 TIME REQUESTED: My request is for one week total during Q3. ...

. Main Sections LabIR main page . Instrument page . Documentation . Science Publications . Special Sections Software Page . Inside the Lab . LabIR staff . Companion Pages Skysoft Home . Tirgo Page . Tirgo Archive . LabIR Hotlist . Lunar occultations . AO star finder . Simple calculator .

... APT Activities and Science Results 3. ... APT Secretary Philip Edwards (ISAS) reviewed the aims of the APT (http://www.vsop.isas.ac.jp/apt/DefinitionAndAims.html). ... The Australia Telescope Compact Array, and Ceduna, Hartebeesthoek, Kashima, Mopra, Parkes, and Shanghai telescopes of the Asia-Pacific Telescope participated in these observations. ... In the absence of Tetsuo Sasao, Philip Edwards briefly described results of the APT 22 GHz observations conducted from October 1st to 5th, 1997. ...

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . Supernovae: and How to Observe Them (Astronomers' Observing Guides) . ... Поиск . ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. Околополюсные созвездия (поиск и описание) .. Весенние созвездия (поиск и описание).. Зимние созвездия (поиск и описание) .. ...

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Outreach . Projects . ... Science . ... Participating in Project ASTRO, a national program to assist teachers in grades 4 through 12 in teaching astronomy . ... June, 1990: National Optical Astronomy Observatory, Friday Science Lunch Talks: "Engineering Big Science Projects" . ... May 4, 2007: National Optical Astronomy Observatory, Friday Science Lunch Talks: "The Ohio State University KELT Telescope -- Early Results" . ...

... Our scientific interest is an accuracy of asteroid CCD observations obtained by amateurs and professional astronomers all over in the World. ... These data help us to analyse an accuracy of real CCD positions in the MPC Database. ... Do you test your observations of the small Solar System bodies permanently before sending them to the International Minor Planets' Center? ... Do you know a real accuracy of your positional CCD-observations in comparison with the other observatories' one ? ...

Search this album . ... Comet Halley 1985-86 . Halley 24-02-86 6m IIIaJ . ... 12m IIIaJ" class="g-sb-preview g-hide" rel="g-preview" href="/gallery3/var/albums/first100years/album34/Halley131185.jpg?m=1378189632"> 15m IIIaJ" class="g-sb-preview g-hide" rel="g-preview" href="/gallery3/var/albums/first100years/album34/Halley161185.jpg?m=1378189632"> 8m IIIaJ" class="g-sb-preview g-hide" rel="g-preview" href="/gallery3/var/albums/first100years/album34/Halley131285.jpg?m=1378189632"> . ...

A Simple Way to Estimate the Soft X-ray Class of Far-Side . Solar Flares Observed with STEREO/EUVI . ... Figure 1. The STEREO/EUVI 195 °A B-streaks typical of C-, M-, and X-class flares. Table 1: A list of flares registered both with GOES and STEREO/EUVI . ... Impulsive GOES M-class flares and their thin, single, long B-streaks. ... STEREO/EUVI B-streak and the peak of the SXR flux measured by GOES. ... A list of major far-side flares detected from B-streaks in STEREO/EUVI 195 °A images. ...

Serguei LANDO (Poncelet laboratory, Moscow): Cohomology of Hurwitz spaces . The problem of studying the intersection theory on Hurwitz spaces naturally arises in connection with the Hurwitz problem. ... The study of the intersection theory on Hurwitz spaces has been initiated in [1,4]. We discuss a new approach to the intersection theory on Hurwitz spaces. ... 3] M. E. Kazarian, S. K. Lando, {\it On intersection theory on Hurwitz spaces}, Izv. ...