Электронная библиотека астронома-любителя. ... архив RSN . ... Ru.Space.News: . Апрель 1998 . ... Дата: 30 апреля 1998 (1998-04-30) От: Alexander Bondugin Тема: MGS Views Mars Pathfinder Landing Site Привет всем! ... Дата: 30 апреля 1998 (1998-04-30) От: Alexander Bondugin Тема: Surprises from SOHO include tornadoes on the Sun [1/2] Привет всем! ... Дата: 30 апреля 1998 (1998-04-30) От: Alexander Bondugin Тема: Mars Global Surveyor Prepares To Enter Solar Conjunction Period Привет всем! ...

The Official Publication of the Amateur Astronomers Association of Princeton Director Bill Murray (609) 298-1179 strgazr@comcast.net Assistant Director John Church (609) 799-0723 j.church@mindspring.com Treasurer Program ... 273-1456 (908) 859-1670 and (609) 448-8644 kane@princetonastronomy.org editors@princetonastronomy.org Volume 39 From the Director January 2010 Number 1 As I write this article we are awaiting the first big snow storm of the year ... January 2010 Other News.. ...

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

STARTEST IMAGES GALLERY . STARTESTING TELESCOPES WITH AN AUTOCOLLIMATOR . ... This website is a joint effort of Markus Ludes from APM-Telescopes and Cor Berrevoets ( Aberrator free startesting Software ). The site aims at explaining the different aspects of star-testing telescopes. ... Markus Ludes (APM telescopes) used a high quality 10" Maksutov Newtonian (Zygo tested at 632,8 nm with the following errors: 1/10.1 wavefront p.t.v. and 1/51 wavefront RMS) as collimator in single pass scheme. ...

This section of library contains information about "classic" Star Catalogs. ... For a Henry Draper Catalog 272149 stars have received a total of 531,211 identifications in 7 сatalogs: . 270456 - in Astrographic Catalogue ( "Carte du Ciel", 4M), . 251943 - in Guide Stars Catalog (GSC), . ... A file with information on the components of 1788 of multiple systems in catalog HDEC (3681 component, or a combination thereof, with 4054 recording). ... A file with information about 21971 variable stars. ...

... Multiexposition 34 images Sun 1/1000 sec f/22 and 1 image background. ... It shows position of the Sun on the sky in the same time of a day during one year. Analemma - a trace of the annual movement of the Sun on the sky - is well known among experts of sun-dials and old Earth's globes as a diagram of change of seasons and an equation of time. ... Previously, the position of the Sun on the sky was calculated with computer as well as optimal moments of time for taking each of the exposures. ...