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  • Phys 813 Web Page
    16 last lecture December 9 There will be no lecture during the last week in October i e October 28 OFFICE HOURS Please email telephone or see me during lectures to arrange a meeting TEXT There is no single text that applies to the course as is typical for courses at a graduate level We will be appealing to a variety of scientific publications as needed However the text Galactic

    Original URL path: http://www.astro.queensu.ca/~irwin/phy813/phy813.html (2016-02-13)
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  • Phys 814 Web Page
    J A Irwin Room 308E Stirling Hall TEL 613 533 2717 Email Dr J Irwin Course Information Calendar Description Course Information and Outline 2000 Books and Resources Suggested Topics for

    Original URL path: http://www.astro.queensu.ca/~irwin/phy814/phy814.html (2016-02-13)
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  • Amateur Radio Astronomy
    astronomy site William Lonc St Mary s includes his book Radio Astronomy Projects Steward Observatory 3 7 meter telescope Berkeley Undergraduate Radio Astronomy Observatory Ned s Amateur Radio Astronomy Site Radio Astronomy Supplies Products The Society of Amateur Radio Astronomers

    Original URL path: http://www.astro.queensu.ca/~irwin/amateur_radio/amateur.html (2016-02-13)
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  • Queen's Fireball Reporting Centre
    Quarterly of Meteorites and Meteorite Science August 2002 Vol 8 No 3 The Queen s RASC Fireball Centre is one node in a network of reporting centres under the umbrella of the Meteorites and Impacts Advisory Committee MIAC to the Canadian Space Agency CSA If you have seen a bright fireball from a location in Kingston or environs i e the region up to but NOT including Toronto Ottawa and Montreal please enter the information on the Kingston Area Fireball Report Form Kingston Ontario Canada is here The Kingston form is temporarily out of service Please use the national form Thankyou If your location was outside of the Kingston region please enter the information on the National MIAC Fireball Report Form National reports can also be faxed to 403 284 0074 or emailed to fireball mta ca For more information see also the North American Meteor Network NAMN the International Meteor Organization IMO the Dutch Meteor Society DMS Space Guard Canada and Peter Brown s UWO home page US Air Force Press Releases which list satellite observations of fireballs can be found here Fireballs which deeply penetrate the atmosphere can produce delayed thunderous sounds The time delay between the light

    Original URL path: http://www.astro.queensu.ca/~irwin/fireballs/fbhome.html (2016-02-13)
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  • Light Pollution Issues
    standard deviation of the 3 measurements made at each point Trial 2 is shown in red with similar error bar envelope shown and similarly Trial 3 is shown in green The variation in values is quite large and we plot the logarithm of the luminance rather than the luminance itself The complexity of the light optics within the luminaire as well as the glass corrugations resulted in large variations in the measurements with light meter position and angle Trials 2 and 3 are believed to be better than Trial 1 since by this time we had learned to support the light meter so as to produce values which were more consistent than for Trial 1 and the meter was not jiggling around as it was for the first Trial Acorn Light Measurement Plot If we discard Trial 1 we note that Trial 2 and Trial 3 follow roughly similar curves Also we note that the error bars on any individual measurement delineated by the envelope are typically smaller than the variations between trials Therefore in the following plot we average together the two curves from Trial 2 and Trial 3 Acorn Light Measurement Plot Avg of Trials 2 3 Computation of the total flux in the upwards direction x axis values greater than 24 cm requires a translation of the 1 degree spot of the light meter into a linear scale on the light and knowledge of how many such spots cover the luminaire These values could be estimated base on our data but since the variation was large it was felt that the calculation of flux cannot be made with confidence It would be more useful to measure this value in a laboratory setting As for glare the average luminance for the bottom is 25 8 cd m 2

    Original URL path: http://www.astro.queensu.ca/~irwin/observatory/light_pollution.html (2016-02-13)
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  • Kingston Area Nightly Cloud Cover Statistics
    to Environment Canada covered does not necessarily mean concealed the latter implying optical thickness Therefore visual or other non scientific observations of astronomical objects may be somewhat more successful than the following data would suggest The following table indicates Col 1 for each year Col 2 the total number of nighttime hours with clear skies where clear skies means cloud cover of 10 or less Col 3 the total number of nighttime hours for each year note that this could be less than 12 365 4380 because data were missing for some hours and Col 4 Col 2 Col 3 expressed as a percentage Year Hrs with Clear Skies Total Nighttime Hrs Clear 1996 1004 4019 24 98 1997 973 4002 24 31 1998 1004 4013 25 02 1999 1240 3988 31 09 2000 1043 4013 25 99 LEFT PLOT Average Cloud Cover for the hours 7 pm to midnight for each day of the year CENTER PLOT Average Cloud Cover for the hours 1 am to 6am for each day of the year RIGHT PLOT Average Cloud Cover for all night hours 7 pm to 6 am for each day of the year 1996 1997 1998 1999 2000 The

    Original URL path: http://www.astro.queensu.ca/~irwin/weather/weather.html (2016-02-13)
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  • Images Taken with the Ellis Hall Telescope
    at Ellis Hall Observatory Mostly galaxies from April 30 2001 plus some comparisons between the Meade and CC04 Asteroid 6115 Martinduncan Dec 8 2001 Collage of Mars images August 28 2003 Some Pictures of Open Houses RASC pictures including KAON

    Original URL path: http://www.astro.queensu.ca/~irwin/observatory/observatory.html (2016-02-13)
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  • Visitors Home Page
    613 533 2717 2707 FAX 613 533 6463 Email IRWIN ASTRO QUEENSU CA Information for Visitors City of Kingston Home Page Maps of Kingston and environs Map of Kingston and environs zoomable Directions to Queen s Campus Map pdf Hotel

    Original URL path: http://www.astro.queensu.ca/~irwin/visitors/visitors.html (2016-02-13)
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