... Precisely one month ago, on 11 July 2009, the last active area of the new solar cycle disappeared from the surface of the Sun. Over the 30 days following this, neither observers on Earth nor devices in space have been able to detect the emergence of any sunspots. ... Therefore, it seems that our star has once again returned to a state of deep solar "winter", following several sparks of activity in May-June 2009. ... To date, this period has lasted 30 days. ...

... Contents . ... Sidereal time . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Matrix elements for conversion to CIRS . ... Conversion of mean time to sidereal time (with accuracy 0.01 s ) . ... Conversion of sidereal time to mean time (with accuracy 0.01 s ) . ... Conversion of mean time to sidereal time (with accuracy 0.001 s and 0.0001 s ) . ...

The starting page - The catalogues page - The list of the PUL2 fields - The list of the Pul-3(Pul-3SE) fields - The list of the PUL_ERS fields . please read short description of the access form controls . ... Right Ascension (ICRF/Tycho-2) J2000 at the central epoch of obs. (hours, minutes, seconds) (Obligatory parameter) . ... proper motion in RA (*cos(DE)) (ICRF/Tycho-2). (mas/yr) . ... Check the apropriate checkbox to output these data and radiobutton to select stars within interval. ...

... Table 1: Acceptable temperature difference Invar36 0 .0 5 C А (the CTE was selected as 0.7 for the FEA) Stainless Steel 304 0.002 CА(the CTE was selected as 17.2 for the FEA) Aluminium6061 0.0015 CА(the CTE was selected as 23 for the FEA) (2) Analysis of the temperature gradients of the mount generated by an ambient temperature difference of 0.5 CА on both sides of the mount Invar , S.S. or Al ... Stainless steel material is added to Table 4 and 5 for comparison with Invar. ...

... Research areas . ... Events The Second All-Russian Research and Practical Conference 'Actual problems in Avionics Research: Theory, Service, Developments' . ... The Second All-Russian Research and Practical Conference 'Actual problems in Avionics Research: Theory, Service, Developments' "(AVIATOR) will take place at the Faculty of Aviation Equipment of the Military Educational and Scientific Centre of Air Force 'Air Force Academy named after Professor N. E. Zhukovskiy and Yu. ...

Next: Limiting Energy Channels Input Up: *fit* - Fit Data Previous: Raymond Model . The model is a two-temperature Raymond thermal spectrum, low temperature range is 0.55 to 0.65 keV, high temperature range is 1 to 2 keV, element abundance table is cosmic, abundance of heavy elements (atomic number >2 ) is 50% of the value in the table. Note that 0.7 = log(5.0), specifies that the second component normalization will be 5 times the normalization of the first component. ...

Celestron Forum Message . Forums: . ... Discussion Forums | Celestron Equipment Discussion | ... Second Hand Buying Tips Please . Forum List | ... I am looking to buy a second hand scope, there are a couple of Celestron CPC 800 scopes for sale local to me. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Numerical Modeling of RadioAstron SRT Temperature Deformations M. Yu. Arkhipov, I. S. Vinogradov, S. B. Novikov, and S. D. Fedorchuk Astro Space Center, Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia e mail: rusengineer@mail.ru Received December 16, 2013 Abstract--The results of modeling the thermal deformations of a space radio telescope's reflecting surface are presented in the paper. ...

... Authors: Yuta Notsu et al. arxiv:1412.5173 Подтверждение и определение параметров протопланеты HD100546 b - Прямое указание на образование гигантской газовой планеты на 50 а.е. (Confirmation and characterization of the protoplanet HD100546 b - Direct evidence for gas giant planet formation at 50 au) . Authors: Sascha P. Quanz et al. arxiv:1412.4936 Вспышки черной дыры за счет ускорения частиц на субгоризонтных масштабах (Black hole lightning due to particle acceleration at subhorizon scales) . ...

ngc1499 _B_00120_df.fits TARGET = ' NGC1499 ' / target EXPTIME = 100 . / exposure time (seconds) FILTER = ' (2) B (375-490)' / filter DATE-OBS = '2012-11-22T01:46:54.181' / date of observation (UT) ngc1499 _B_00120_dfw.fits TARGET = ' NGC1499 ' / target EXPTIME = 100 . / exposure time (seconds) FILTER = ' (2) B (375-490)' / filter ...

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13-20 November 2003 . 13 Nov, 05:01 M1.6 AR 0501, N04E90 LASCO: EIT, 195 A: fix , run . 13 Nov, 09:29 M1.4 AR 0501, N04E90 LASCO: C2 , C3 EIT, 195 A: orig , fix , run . 17 Nov, 09:05 1N/ M4.2 AR 0501, S01E33 LASCO: C2, C3 EIT, 195 A: orig , fix , run . ... 19 Nov, 04:01 1N/ M1.7 AR 0501, N01E06 LASCO: EIT, 195 A: fix , run . 19 Nov, 08:17 1F/ C8.8 AR 0501, N03E01 LASCO: C2 , C3 EIT, 195 A: fix , run . 20 Nov, 02:12 1N/ M1.4 AR 0501, N03W08 LASCO: EIT, 195 A: fix , run . ...

... Meade Instruments Corporation . ... Meade Pictor 616A Color Filter System Instruction Manual . ... Remove the Meade Pictor 616A Color Filter System from the telescope or camera. Use the supplied hex wrench to remove the three screws from the telescope side of the Meade Pictor 616A Color Filter System. Position your Meade Pictor 616A Color Filter System to align with the diagram below. ... Carefully screw each filter into the wheel, and re-assemble the Meade Pictor 616A Color Filter System. ...

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . Sky Atlas 2000 second edition . ... Поиск . Сообщения за день . ... Сообщений: 2,999 . ... Доступен Sky Atlas 2000 second edition (черно-белая версия). ... Sky-Watcher Доб 254 моторетрак, MAK 90, Coronado SM 40; бинокль Canon 10x30 IS . ... Отправить личное сообщение для Olegus . Найти еще сообщения от Olegus . ... Сообщений: 1,633 . ... Отправить личное сообщение для Viktor Tsepaev . ... Сообщений: 777 . ...

Электронная библиотека астронома-любителя. ... архив RSN . ... Ru.Space.News: . Апрель 1998 . ... Дата: 28 апреля 1998 (1998-04-28) От: Alexander Bondugin Тема: Cassini Update - April 26, 1998 Привет всем! ... The web site also contains some audio files, including a recording of the Mode-S beacon which plays for 20 seconds. ... During the period 1998-Mar-21 to 1998-Apr-15, excellent signals have once again been received from the 145.826 MHz beacon. ... The 435.025 MHz beacon is normally off. ...

... More than 300 surface reconstructions are already known for pure Si surface and Si surface with adsorbate. Study of their properties by the methods of surface physics reveal numerous interesting phenomena including various phase transitions accompanied by changes of Fermi-surface topology, development of the charge-density wave, etc . ... The charge-density wave (CDW) develops in materials with a chain-like crystal structure at temperatures below the Peierls transition temperature. ...

... First Contact Moon begins to move over Sun from West Starts at ~5:44:45 AM (about 10 minutes after sunrise) Must observe sun with filter! Good time to check and adjust mount tracking and alignment Watch for sunspots 6/21/ 2001 - Zambia ( Mario Motta ) First Contact Crescent images of Sun Natural pin-holes such as leaves on trees Pin-holes in cardboard Mario Motta Watch sky and environment Gradually darkens Temperature drops 8/11/1999 Hungary (Eric Pauer) ~1 min Before Second ...

Альтернативный форум . Scientific.ru Все форумы . Постоянные участники форумов [ .. ... The second law of Newton - Zhivotov, kinetic energy and work of forces. ... It is scarlet - work of tangential forces. ... Re: Второй закон Ньютона - Животова (Редактированное) (То) . ... Второй закон Ньютона - Животова, кинетическая энергия и работа сил. ... снова все то же Munin, 11.12.2007 13:39 . ... Re: Второй закон Ньютона - Животова, кинетическая энергия и работа сил. v_rtex, 08.12.2007 17:34 . ...

ПЕРЕЛ?К ПУБЛ?КАЦ?Й СП?ВРОБ?ТНИК?В ГАО . ... Second UK- Ukraine Meeting on Solar Physics and Space Science 2013, Kyiv, Ukraine, Sept. 16- 20, 2013 (UKU SPSS 2013): Programme, Abstracts, Information/ Ed. by V. Fedun . 2013 . ...