... Phase Diversity Imaging: Real Time Correction of the Atmosphere and Telescope . Dr. Robert A. Gonsalves . ... Join us this month for what promises to be an engaging talk by Dr. Robert A. Gonsalves, “Phase Diversity Imaging: Real Time Correction of the Atmosphere and Telescope.” Phase diversity imaging uses multiple images of an object to combat the deleterious effect of the changes in the atmosphere and telescope. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

яЛП . PubliУ? le 13/08/2011 par Arnaud Renquet . Date : 22/07/2011 . Lieu : puimichel (france) . MatУ?riel de prise de vue : ccd sbig sur le t106 de type Ritchey-Chretien . Commentaires : m17 prise au t106 de puimichel( tУ?lУ?scope de type Ritchey-Chretien). Pour le traitement d'image, il y a eu le retrait du dark du flat, de l'offset ainsi que la correction des gradients pour obtenir une nettetУ? de l'image sur les bord. de champ.

... Проф. А.Д.Чернин (ГАИШ, МГУ, Москва): ЭНЕРГЕТИЧЕСКИЙ СОСТАВ ВСЕЛЕННОЙ: НОВАЯ СИММЕТРИЯ 13.00-15.00. ... Проф. Л.И.Мирошниченко (ИЗМИРАН, Троицк, Россия): СОЛНЕЧНОЗЕМНЫЕ СВЯЗИ В 23-ЕМ ЦИКЛЕ СОЛНЕЧНОЙ АКТИВНОСТИ Лекция 9 10.50-11.30. ... М.И.Рябов, А.Л.Сухарев (Одесская обсерватория Радиоастрономического института НАНУ) : О ПРОЯ ВЛЕНИИ ИЗМЕНЕНИЙ СТРУКТУРЫ ПЕРЕМЕННО СТИ ПОТОКОВ ВНЕГАЛАКТИЧЕСКИХ РАДИОИСТОЧНИКОВ 3С120, OJ287, 3С273, 3С279, 3С454.3 НА РАЗЛИЧНЫХ ФАЗАХ АКТИВНОСТИ 4. ... РИ НАНУ Гравиметр. ...

Home | Products | How to contact ] . ... GRINEXT Corp. ... Gradient Optics . Research and Develpment . Gradient-Index Optical Components Manufacture . Gradient-Index ( GRIN ) glass preforms . GRIN lenses . for fiber lasers optics . ... Research in the field of ion-exchange technology . of gradient-index glasses . with different types of gradient . ... 3D-gradient . ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Observing . ... Curiosity rover on track for August 5/6 landing . ... The spacecraft is on course for delivering the mission's car-sized rover, Curiosity, to a landing target beside a martian mountain at about 1:31 a.m. EDT August 6. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Next: Status and Goals of Up: NICMOS Data Calibration and Previous: NICMOS Data Calibration and . ... CALNICB Processing . ... Combining NUMITER Images . ... The Space Telescope Science Institute (STScI) data reduction and calibration pipeline for the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) is composed of two major tasks, CALNICA and CALNICB. ... NICMOS, calibration, pipeline, software . ... CALNICB combines images into mosaics and also removes background signal from the images. ...

... The caption to Color Figure 3 refers to the source 1928+734, which should be 1928+738. In the summary section on page 49 (Murphy et al.), the sentence "In that time, we have observed a variety of structural changes in the inner jet region near the region." should read "In that time, we have observed a variety of structural changes in the inner jet region near the core." In the references on page 175 (Fomalont et al.) and page 182 (Moellenbrock et al.) ...

Sternberg astronomical institute activities on site testing programs review Victor Kornilov comprehensive/characterization/of/astronomical/sites > kislovodsk/russia/2010/october/4-9 > Introduction This presentation responds on our activity in 5 last years only, inspite of that in SAI site testing researches have been started many years ago. ... More detailed discussion is devoted to MASS and DIMM measurements processing, some additional effects which were taken in account in last year. ...

Subject, Object and Problems of Astrophysics. Practical and Theoretical Astrophysics. ... Visual Telescope; Problems Which Are Solved with the Its Help. ... Resolution of Telescopes. ... Effectiveness of Telescope in Respect of Resolution. ... Optical Power of Telescopes for Star-like and Extensive Objects. Boundary Magnitude. Reasons of Light Dissipation in Telescopes. ... Spectral Instruments in Astrophysics. ... Basic Photometrical Ideas, Magnitudes and Their Measurement. ...

... ASTRONOMICAL TELESCOPES . ... HOME . ... Home Products Telescopes Astronomical Telescopes . Recreational astronomical telescopes (ASTELE™) feature Maksutov Cassegrain or Maksutov Newtonian optical design. ... These telescopes (except ASTELE ™ 70, 95) are available in three configurations: OTA (Optical Tube Assembly), G (German Equatorial Mount) and EL (with motorized base). ... These telescopes are available in two configurations: OTA (Optical Tube Assembly) and G (German Equatorial Mount). ...

... SATELLITE: An object that revolves around a planet. ... SIDEREAL DAY: The length of a planet's rotation period relative to the stars. SOLAR SYSTEM: The sun and all the objects that are held in its gravitational field and move around it. ... SUPERIOR CONJUNCTION: The position of a planet when it is on the opposite side of the Sun from Earth (thus making in invisible). ... TRANSIT: The movement of an object between the Earth and the Sun and showing on the surface of the sun as a black dot. ...

... Moon . ... Monthly Sky Notes . ... On 2 July, the night sky will be filled with the light of the Moon, so get out your telescopes and binoculars and have a look at our wonderful, natural satellite. ... On 16 July will see all the stars on display in our sky, as there will be a New Moon. ... One of the most notable patterns in the sky is now very visible in the month of July, the Summer Triangle. ... The proper definition of a Blue moon is when a full Moon appears in the sky twice in one month. ...

... Вид Дворца пионеров и школьников и купола обсерватории в 1979 году. ... Визуальные наблюдения переменных звезд. ... В 1982 году в обсерватории проводится целый ряд интересных работ: наблюдения полного лунного затмения, переменных звезд, наблюдения по программе "Красные гигганты" совместно с Эстонским отделением ВАГО и обсерваторией города Тарту. ... Вид ржавеющего телескопа никого не оставил равнодушным и с января 2000 года начинается ремонт обсерватории, а в месте с ним и Новая История БЮАО. ...

Supernova 1999em in NGC 1637 . This page is devoted to information on Supernova 1999em in NGC 1637 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main main page . Information on the original web pages for many of these images can be found on the Supernova links web page. ... LOSS image . ... vsnet-alert 3639 ] SN 1999em in NGC 1637 . vsnet-alert 3640 ] SN 1999em in NGC 1637 . ... vsnet-recent 39999 ] SN1999em recent (cont'd) . ...

National Aeronautics and Space Administration . ... ROBERT L. SATCHER, JR. ... NASA ASTRONAUT (FORMER) . ... He received a bachelor of science degree in chemical engineering from Massachusetts Institute of Technology in 1986; a doctor of philosophy in chemical engineering from MIT in 1993 and a doctor of medicine degree from Harvard Medical School in 1994. ... Dr. Satcher left NASA in September 2011 and currently is on staff as a Surgical Oncologist at MD Anderson Cancer Center in Houston, Texas. ...

... 1.7 GSC 084 Pulkovo Obs., 0.33 15 x 15' 1.0" 7 34 0.179 0.307 Normal Asgr. 3.0 UCAC 118 Slovakia, 0.57 14 x 10' 1.7" 3 12 0.090 0.145 Modra 3.3 USNO 127 Germany, 0.19 30 x 20' 2.4" 3 15 0.151 0.087 Bornheim 0.8 GSC 168 34 200 0.282 0.315 291 USA,Kitt Peak, 1.8 390 x 30' 1.0" 1 5 0.143 0.144 Spacewatch II 4.7 USNO 300 Japan, 0.5 78 x 78' 2.3" 7 36 0.420 0.447 Bisei Center 1.3 ACT 461 Hungary, JATE 0.60 28 x 19' 1.1" 6 22 0.124 0.153 Asteroid Surv. ... Polynesia 1.0 UCAC F85 Tiki Obs., ...

Truebloodb,g, K. Zelayab Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43221 USA; bNational Optical Astronomy Observatory, 950 North Cherry Street, Tucson AZ 85719 USA; cCerro Tololo Inter-American Observatory, Casilla 603, La Serena ... USA ABSTRACT We describe the design, construction and measured performance of the Kitt Peak Ohio State Multi-Object Spectrograph ( KOSMOS ) for the 4-m Mayall ... Optical layout for KOSMOS and COSMOS. ...

... The mount is also adjustable so you can orient the axis of rotation to make it parallel with the Earth's axis of rotation (see the section on Polar Alignment). ... Locate the opening in the equatorial mount on the DEC axis. ... To mount the telescope tube: 1. ... ADJUSTING THE MOUNT FOR POLAR ALIGNMENT In order for the clock drive to track accurately, the telescope's axis of rotation must be parallel to the Earth's axis of rotation, a process known as polar alignment. ... R.A. & DEC axis ! ...

A&A 385, 1­13 (2002) DOI: 10.1051/0004-6361:20020143 c ESO 2002 Astronomy & Astrophysics Chemically distinct nuclei and circumnuclear rings in lenticular galaxies NGC 4429 and NGC 7013 O. K. Sil'chenko1, 1 2 3 4 2,3 and V. L. Afanasiev4 Sternberg Astronomical Institute, University Av. ... An analysis of the gas and star kinematics in the centers of the galaxies has revealed the presence of an inclined circumnuclear disk in NGC 7013 and the existence of minibar in NGC 4429. ... Fig. ...