Target Acquisition Reference Information . ... In almost all cases where an onboard acquisition will not work (because the object is in a crowded field, or is variable, or is a moving target), it is sufficient to use an early acquisition to get a WFPC2 or FOC image a few weeks in advance of the GHRS observation. ... Explicit BRIGHT and FAINT limits may be specified if you desire, although there is an increased risk of a failed acquisition unless you are confident of those fluxes. ... MAPs . ...

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Astronomy Discussion Forums . Forums: . ... Observation Report From Coyle 07/19/03 . ... Post Message | ... Observation report from Coyle 07/19/03 . ... The background became jet black with the bright ring just floating there in the middle. ... It looked more like a ball. ... 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" . ...

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... Two files from two exposures (even from different observations or instruments) are taken as input. These may be EPIC event lists or two other additional files (attitude files, orbit files etc [see comments]). ... Warnings are given when the event files are deemed not entirely compatible (i.e. their INSTRUME or FILTER keywords are different). ... Given here is a summary of the current conditions whereby event files (or parts thereof [blocks/columns etc]) are or are not merged. ...

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• Comments

This is a new popup window - close it when you are done . Submitted by Al Takeda on 11/22/2013 22:56:48 . Comet C/2012 S1 (ISON) Enlarged - November 20, 2013 . Comet C/2012 S1 has become much brighter since my last image on Nov. ... Canon 24-105 f/4L lens (imaged at 102mm f/4), Unmodified Canon T1i DSLR, Astronomik CLS Light Pollution filter, ISO 800, iOptron SkyTracker on a heavy duty camera tripod. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

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... Apache HTTP Server Version 2.2 . ... On systems with multiple users, each user can be permitted to have a web site in their home directory using the UserDir directive. Visitors to a URL http://example.com/~username/ will get content out of the home directory of the user " username ", out of the subdirectory specified by the UserDir directive. ... Per-user web directories . ... the URL http://example.com/~rbowen/file.html will be translated to the file path /home/rbowen/public_html/file.html . ...

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... SUMMARY of OB grades and nightlog entries for OB 350825 in night 2007-01-06: OB_ID UT_START UT_END RUN_ID INSTRUMENT GRADE OB_Name ================================================================================= 350825 06:06 07:01 072.D-0630(F) FLAMES A LMC_Field15 DETAILS: ======================================================================= Seeing : 0.80 Yes Airmass : 1.80 Yes FLI : 1.00 Yes Moon distance : 50 Yes Sky transparency: 2CLR Yes Strehl ratio : 0.000 N/A 2. ... targt msd F | ...

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OptInt PmWiki : Pm Wiki / Wiki Style Examples . Wiki styles | ... PmWiki uses WikiStyles for styling text with color and other attributes. PmWiki 2.0 introduced the ability to control the styling further and to even place styles on blocks. ... In addition, an author can define a style "shortcut" by using the define= property. For example, to define a style of %red% , one can use: . define=mystyle color=red% Here is some %mystyle% red text created using a style shortcut. ...

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Next: Additional information Up: Required observational data Previous: Timing information . Comments are so common, and so useful, that a 32-byte COMMENT column should be considered part of the basic data, even though it may be blank for the majority of the data. This field may be used to append comments to a particular observation, such as DOME IN THE WAY? ... The time field MJD_OBS should always be filled in, but the rest can remain undefined. ... Tue Mar 28 16:52:29 MET DST 1995 ...

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. Next: CORAVG Up: Details of SCHED Parameters Previous: CENTERS Contents . COMMENT is a string of up to 128 characters to be written on operator and telescope files just before the scan. Argument: Text up to 128 characters. Options: Any. Default: Blank . Usage: Reverts to no comment if not specified for each scan. Example: COMMENT='ET, call home.' . Craig Walker 2014-04-14

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. Comment on J0318+4151 . No detection: according to global VLBI observations at 5 GHz by Xu, O'Dea & Biretta (1999), the core of this double-tail radio galaxy has a brightness of 13 mJy/beam, too weak for us to be detected. VLBApls home page . Last modified: 16 Oct 2000

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... Archives . ... ArXiv] Three Classes of GRBs, July 21, 2007 . Quote of the Week, July 26, 2007 . ... The sixth data release of the Sloan Digital Sky Survey (SDSS DR6) is available at http://www.sdss.org/dr6 . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

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... 200 MHz Backend . 100MHz/200MHz . ... Additionally, the other deep survey would benefit considerably from the increased bandwidth coverage. ... 100/4096: . 3-level/4bit . ... 100/2048: . ... Degradation in the sampling will results in considerable bandwidth loss due to RFI. ... 1 ms blanking of data . ... 1-2 Hz dump rate (combined with the <1ms blanking) would allow for efficient processing of the data, and excising of any 'leftover' RFI in the data without losing too much of the useful data. ...

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User catalogs allow you enter positions for your objects into a file, to save time during an observing run. ... Before diving into the details, here is an example: # default coordinate system and object # (these are the standard defaults, so if you like them you can omit this line) CSys=FK5; Date =2000; RotType= Object ; RotAng=0 # some random objects # Name Pos1 (e.g. RA) Pos2 (e.g. Dec) Options in keyword-value format NGC6543 rot 90 ... Object Data . Defaults . Catalog Options . ...

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... Telescopes . LX850 Series . ... Coronado€о Solar . SolarMax II Solar Telescopes . ... Blocking Filters . ... SolarMax II 60mm Solar Telescope with RichView system and 15mm Blocking Filter . ... 15mm blocking filter . ... Coronado by Meade SolarMax II 60mm Solar Telescope with RichView system. Includes 15mm Blocking Filter. 60mm diameter Solar Telescope with sub 0.7 angstrom bandwidth filtering for observation of surface detail and prominences on the Sun in hydrogen-alpha (Ha) light. ...

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... In this activity, students will observe that the faintest stars which they can see in the sky are affected by many things: the adaptation of their eyes to the dark, the presence of clouds or haze, the time of year, and the presence of light pollution. General Information . ... After completing this activity, students should have a better understanding of the practical processes for dealing with the light pollution problem and with other environmental and societal issues. << previous page | ...

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... To save time, I will only provide ephemerides in 2000 coordinates. ... Note: most the orbital elements used to create these ephemerides were obtained from the International Astronomical Union Circulars (IAUCs), Minor Planet Circulars (MPCs) or the ICQ Comet Handbook. ... The following 1-day ephemeris (March 1, 1997 - October 1, 1997) is from Donald Yeomans of JPL and is based on Reference Orbit #55 (March 4, 1997). 2000 coordinates (March - September, 1997) [3/4/97] . ... Epoch: 1997 Feb. 1.0 . ...

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... Armagh Observatory, 24th March 2009: The International Space Station ( ISS ) has recently become the second brightest object in the night sky тАФ even brighter than the planet Venus, and second only to the Moon. Evenings will provide the chance of a spectacular view, if the sky is clear, as for the next few days the orbit of the ISS around the Earth repeatedly takes it over Ireland. ... At its best, it is now the second brightest object in the night sky. ...

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... Therefore, the menu location # "Blur/Blur" specifies an item name of "Blur" in a submenu entitled # "Blur". ... It is convention to only use the `alt' and `shift' key modifiers for # plug-ins. ... The main application will not use the ` alt ' # or ` shift ' key modifiers. plug-in blur Blur / Blur Alt Key B Alt +B plug-in gauss Blur /Gaussian Blur Shift Alt Key B Shft+ Alt +B plug-in gauss_rle Blur /Gaussian Blur RLE plug-in gauss_recurse Blur /Gaussian ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Space Flight . ... November . ... By admin September 26, 2012 Posted in: Comets and Asteroids . Comet ISON is revealed.( ... Comet ISON.'s orbit and position on 25 September 2012.( ... The comet€а will reach its closest point to the Sun, perihelion in late November 2013.Then it is expected to whizz around the Sun a mere 1.1 million km above its surface making Comet ISON one of that class of comets called€а Sungrazers. ...

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