... The source exhibits a mas-scale structure which, according to the USNO multi-epoch monitoring at 2.3 and 8.4 GHz over the period from 1994 July through 1998 April, undergoes considerable changes in the brightness distribution and positions of the major structural features. Our image is qualitatively consistent with the structural pattern of the source. ... We note a difference of ~90 in position angles of secondary components in our image and the 5 GHz VLBI image by Shen et al. 1998). ...

Еще в разделе: (Показать все результаты (>5) - www.vsop.isas.ac.jp/ )

• February 2002 APT Meeting
• VLBApls home page

... Variable Star Observing . ... Thursday, Nov 13, 2014 at 8:00 PM . While taking deep-sky images or observing double stars through the eyepiece can be fulfilling, the universe is dynamic and constantly changing - never more obviously seen than with variable stars. ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Nov . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Еще в разделе: (Показать все результаты (>88) - www.atmob.org/ )

... The unlocked gate at the entrance to the observatoryтАЩs gravel driveway should remain closed to prevent the public from driving back to the observatory. ... This means that if there are still members of the public present at the observatory who do not wish to leave by 11:30 PM they will be locked in the park until a keyholder leaves and secures the gate(s) behind him/her. ... Roll the roof back using the hand crank near the computer room. ... Amateur Astronomers Association of Princeton, Inc., ...

Еще в разделе: (Показать все результаты (>55) - www.princetonastronomy.org/ )

... Barbara Hubal . Mike Unsold . ... Workshops . ... Ken Hubal . ... He's also built a number of specialized solar astronomical instruments and regularly submits data to the American Association of Variable Star Observers, Solar Section.. ... The Hidden Hollow weekend Star Party at Warren Rupp Observatory will be back again this year the weekend of May 2nd - 4th! Hidden Hollow 2008 . ... Make-and-Take Solar Filter This year we plan on having another "make-and-take" solar filter workshop! ...

Еще в разделе: (Показать все результаты (>18) - www.wro.org/ )

• Benefits of Membership

... Home Education Outreach Program to Schools . ... Lecture Series 2014-2015 . ... Outreach Program to Schools . ... Clear Sky Chart . This Month's Sky . ... This Month's Sky - 2015 . This Month's Sky - January 2015 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Еще в разделе: (Показать все результаты (>75) - www.aaa.org/ )

• Online Store ? Amateur Astronomers Association of New York
• Lecture Series 2011-2012 ? тАЬBest Short Astronomy VideosтАЭ ? Robert Nemiroff
• Astro Answers ? The Big Bang, Inflation, and Latest Results from BICEP2 ?

... LINKS . ... Founded in 1971 by a group of enthusiasts and star aficionados, our association is now counting more than 130 members.As a national association we attract hobby astronomers from the whole country to our regular night-sky observations and to the meetings in our club at Dudelange. ... Club News . ... by topic : PDF File Download (360KB) . by title : PDF File Download (640KB) . ... Article about AAL in "Le Quotidien" newspaper of Juli 21 2005 - PDF File Download (132KB) . ... SOME LINKS . ...

Еще в разделе: (Показать все результаты (>9) - www.aal.lu/ )

• The Probook Project

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

Еще в разделе: (Показать все результаты (>10) - www.vista.ac.uk/ )

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... 2/3-m Telescope . ... Winer . Papers . ... Mutel, R.L. and Fix, J.D., 2000, An Optical Search for Small Comets , Journal Geophys. ... Mutel, R.L., Gayley, K.G., and Fix, J.D., 2001, Reply to Frank Sigwarth , Journal Geophys. ... Mutel, R.L. and Fix, J.D., 2003, Comment on 'Detection of Small Comets with a Ground Based Telescope' by Frank and Sigwarth , Journal Geophys. ... Arizona 85637-0797 . ... 2013 Winer Observatory. ...

Еще в разделе: (Показать все результаты (>11) - www.winer.org/ )

• Winer Observatory Benefactors
• Winer Observatory Site
• Winer Observatory Outreach Programme

... разработка теории и методов расчета лучевых дифференциалов первого, второго и третьего порядков в градиентных оптических системах; . ... разработка методов расчета геометрических аберраций второго и третьего порядка осесимметричных оптических систем, содержащих асферические поверхности и градиентные среды типа "псевдоаксикон"; . ... получены формулы для расчета смещения изображения и геометрических аберраций второго порядка в градиентных оптических системах с малыми нарушениями осевой симметрии; . ...

213. Lumam

214. Deep Purple Discography