... Bad Astronomy . ... Mad Science . ... Please explain what the fourth dimension is and how it can be visualized. ... I never found any really good books describing it, although there is one fun one called "The Fourth Dimension Simply Explained". ... The fourth dimension would be if you could draw a line perpendicular to all three lines. ... If you could move in the fourth dimension, you could go straight out from the center of the sphere, receding forever, but never actually touch the surface. ...

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... There are four independent correlator boards available in the correlator spectrometer. Each board can be assigned any available bandwidth, center frequency, sampling level, polarization, and number of channels. ... Sampling level: Your data can be sampled with either 3-level, 3-level interleaved, or 9-level sampling. 9-level operation achieves 98% of the signal-to-noise of analog correlation whereas 3-level sampling achieves 81%. ... You cannot use 9-level sampling with a 50-MHz bandpass. ...

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... A Night at Poker Flat . ... Four NASA suborbital sounding rockets leapt into the night on January 26, from the University of Alaska's Poker Flat Research Range. This time lapse composite image follows all four launches of the small, multi-stage rockets to explore winter's mesmerizing, aurora-filled skies. ... That's about 3.1 times the Earth-Moon distance or 4 light-seconds away. ... Comet Lovejoy in a Winter Sky . ... Our Galaxys Magnetic Field from Planck . ... Light from Cygnus A . ...

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• Астронет > 1999 JM8: A Rock Too Close
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... SPECIAL HONORS: Eagle Scout; Sam Houston Area Council 1976 Distinguished Eagle Scout Award ; Presidential Medal for Freedom, 1970; NASA Distinguished Service Medal; two Navy Distinguished Flying Crosses; 1967 FAI De Laval and Gold Space Medals (Athens, Greece); the American Academy of Achievement Golden Plate Award ; City of New York Gold Medal in 1969 ; City of Houston Medal for Valor in 1969 ; the National Academy of Television Arts and Sciences special Trustees ...

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OptInt PmWiki : MROI Delay Line SW / VME . One RT task for all delay lines, triggered by single interrupt source. RT task performs somewhat different functions when seeking datum switch (always in slew mode). Want capability to run software in an emulator mode, on VME platform under Xenomai, but without any interface boards. ... Algorithm for step pre-filter. ... Printable View of http://www.mrao.cam.ac.uk/projects/OAS/pmwiki/pmwiki.php/MROIDelayLineSW/VME) ...

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... Venus, the brightest planet, and Jupiter the second brightest (apart from Mars on very rare occasions) will appear very close together in the Eastern morning sky! ... Venus will be magniute -4.0, and Jupiter mag. ... Callisto, Jupiter's outermost Galilean moon, will then be 7' to the West of Jupiter, so Venus will be just about 4.5 times further away. ... The Last Quarter Moon will be 55 degrees away to the upper right of Venus, with Saturn (mag 0.1) another 16 degrees beyond the Moon. ...

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Next: Reading and Writing Visibilities Up: UV Data Sets Previous: General . The routine uvopen opens a uv data set and readies it for access. Here dataname is a string giving the data set's name. Status can be either 'old' or 'new' , depending whether an old data set is being read, or a new data set is being created. Tno is an integer handle passed back by the open routine (and is used for all future access to the data set). The routine uvclose closes the data set. ...

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... September 1, 1999 . 1999 JM8: A Rock Too Close . ... NAIC , NASA . Explanation: Nearly four kilometers across, the huge rock known as 1999 JM8 silently passed only 8.5 million kilometers from the Earth in early August. The small asteroid was completely unknown before May. ... Although 1999 JM8 missed the Earth, thousands of similar but unknown asteroids likely exist that cross Earth's orbit. ... About APOD > . ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

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• APOD: 2011 July 3 - Alpha Centauri: The Closest Star System
• APOD: 2003 March 23 - Alpha Centauri: The Closest Star System
• APOD: May 26, 1996 - Alpha Centauri: The Closest Star System

wave . ... usr/local/Python-2.5/lib/python2.5/wave.py . Module Docs . Stuff to parse WAVE files. ... f = wave. open (file, 'r') . where file is either the name of a file or an open file pointer. The open file pointer must have methods read(), seek(), and close(). ... This returns an instance of a class with the following public methods: . ... getnframes() -- returns number of audio frames . getcomptype() -- returns compression type ('NONE' for linear samples) . ... aifc module) . ...

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The electronics of LonGSp is composed of two main parts: "upper" electronics, that is situated near the instrument, and the "lower" electronics, put in the control room. ... There is also the main electronics box that contains the amplifiers and the A/D converters for the four output signals from the detector, the sequence memory which generates the proper timing clocks, and a logic for converting the 16-bit parallel data from the array to a serial format. ...

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. Comedi Documentation . Prev . Next . comedi_get_board_name -- Comedi device name . #include <comedilib.h> . char * comedi_get_board_name (comedi_t * device); . The function comedi_get_board_name returns a pointer to a string containing the name of the device. This pointer is valid until the comedi descriptor it is closed. This function returns NULL if there is an error. Prev . Home . Next . comedi_get_driver_name . Up . comedi_get_subdevice_type

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... Практическая астрономия ? ... Часто Задаваемые Вопросы (ЧАВО или FAQ) . ... Ответов / Просмотров . Последний ответ . ... Автор Ernest . 0 Ответов . ... от Ernest . Книга жалоб и предложений для читателей FAQ . ... Насколько часто погода позволяет наблюдать? ... Популярная тема (более 60 ответов) . Очень популярная тема (более 120 ответов) . ...

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... The most spectacular view however is from space, where large areas of aurora can be observed simultaneously, even the entire polar cap. ... Such pictures often show a continuous ring of aurora around the polar cap (picture above), caused mostly by electrons leaking out along magnetic field lines, from the plasma sheet of the Earth's magnetic tail. ... Field lines from the auroral oval are believed to lead to the plasma sheet. ... A near-Earth circular polar orbit has many uses. ...

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... The most spectacular view however is from space, where large areas of aurora can be observed simultaneously, even the entire polar cap. ... Such pictures often show a continuous ring of aurora around the polar cap (picture above), caused mostly by electrons leaking out along magnetic field lines, from the plasma sheet of the Earth's magnetic tail. ... Field lines from the auroral oval are believed to lead to the plasma sheet. ... A near-Earth circular polar orbit has many uses. ...

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Next: Output Up: Calling Parameters Previous: Calling Parameters Contents . ... Real numbers. calc_mode . ... Integer number with value either 0 or 1. n . optional input parameter defining the number of neighbouring entries to be considered for interpolation process. Integer number ( ). Default value is 4, i.e. only the four closest detector positions listed in the CCF extension are used in the 2-dimensional interpolation. Michael Smith 2011-09-20 ...

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• Informational attributes

2.5m Preflight Check . ... Preparations for Science: . ... If not already done, set Az and Alt brakes. Check that nothing is around/on the telescope which would interfere with altitude or rotator motion. Make sure nothing is in the path of the rotating racks, or on/around Az drive disk. ... Re-apply Alt brake when done. ... Make an Alt move. Combine motion test with drive surface checking/cleaning to allow access to entire surface.* ... Set Alt brake. ... Set Az brake. ... Axial A 1.9315 . ...

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... Research School of Astronomy & Astrophysics . ANU College of Physical & Mathematical Sciences . EXPLORE ANU . ... Research . ... ANU College of . ... SEARCH . ... Search query . Search . Search query Search button . ... Intranet . MSO intranet . ANU Outlook 365 login . ... The Research School of Astronomy and Astrophysics (RSAA) website has moved to http://rsaa.anu.edu.au . Please visit the RSAA site for more information about the school, our research, or observatories. ...

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.

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Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... The Rosetta spacecraft orbits a comet for the first time. ... The mission overview is to send an orbiter, Rosetta, to the comet, while it is still far from the Sun to explore in detail the surface of the nucleus. ... If the mission continues to plan, by the end of this year ESA with the help of the Rosetta spacecraft may start to unlock the mysteries of comets and reveal clues about the conditions in the early Solar System. ...

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Next: NAOS Computer Aided Control: an Optimized and Astronomer-Oriented Way of Controlling Large Adaptive Optics Systems . ... It also provides additional capabilities such as real time optimization of the control loop which is the warranty for NAOS to achieve a very good Strehl Ratio in a broad magnitude range ( = 8 up to 18), on-line turbulence and performance estimations and finally capability to store and process the data necessary to the off-line PSF reconstruction algorithm. ...

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