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HMNAO Astronomical Information Sheet

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  • 09-01-2013 7:48pm
    #1
    coylemj
    Registered Users Posts: 25,345 ✭✭✭✭


    HM Nautical Almanac Office produces an Astronomical and Calendarial Data Sheet every year in the form of a two page PDF file.

    They used to make the file available for free as a download a couple of weeks after Jan 1st. The data consists of the phases of the moon, dates and time of the solstices and equinoxes, UK Bank Holidays, major religious holidays/feast days and details of eclipses.

    Companies producing diaries and calendars could purchase the sheet a couple of years in advance, amateur astronomers could then download it for free in the middle of January once it had no further commercial value.

    However they now appear to be looking for money for even the 2012 data sheet :eek:

    Meanies!

    Click the 'Calendarial' tab....

    http://www.ukho.gov.uk/HMNAO/ProductsandServices/Pages/DynamicData.aspx


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    #2
    coylemj
    Registered Users Posts: 25,345 ✭✭✭✭coylemj


    Just found this link and the 2013 Astronomical and Calendarial data sheet is now available for free download....

    http://astro.ukho.gov.uk/nao/online/index.html#calendar


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    #3
    coylemj
    Registered Users Posts: 25,345 ✭✭✭✭coylemj


    As before, there is a page on the HMNAO website which suggests you have to pay for the 2014 Astronomical Sheet but another page (link below) where it's available for free. It's a two-page summary of phases of the moon, eclipses in 2014 plus dates and times of the solstices and equinoxes.....

    http://astro.ukho.gov.uk/nao/online/index.html#calendar


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    #4
    coylemj
    Registered Users Posts: 25,345 ✭✭✭✭coylemj


    The 2015 version is now available for free download. As always it's a two page PDF file....

    http://astro.ukho.gov.uk/data/ais/pdf/ais99.pdf


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    #5
    coylemj
    Registered Users Posts: 25,345 ✭✭✭✭coylemj


    The free Astronomical Information Sheet for 2016 is not yet available but a superset of this data is and always was available in the larger 'Astronomical Phenomena for 20YY', a joint publication of the US Naval Observatory and HM Nautical Almanac Office. The 'Phenomena' booklet in turn is a subset of the larger 'Astronomical Almanac'.

    The 2015, 2016 and 2017 (PDF) editions of the 'Astronomical Phenomena' are now free to download here.....

    http://aa.usno.navy.mil/publications/docs/ap.php


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    #6
    coylemj
    Registered Users Posts: 25,345 ✭✭✭✭coylemj


    The 2018 two-page 'Astronomical Information Sheet' for 2018 is now available to download from HMNAO here....

    http://astro.ukho.gov.uk/nao/online/index.html#calendar

    And the US Naval Observatory have kindly made the full 80 page 'Astronomical Phenomena' book available to download free here .....

    http://aa.usno.navy.mil/publications/docs/ap.php


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    #7
    coylemj
    Registered Users Posts: 25,345 ✭✭✭✭coylemj


    Folks, 2019 data now available, use the links below ....

    There was a problem earlier with the US Naval Observatory (USNO) website, hence the delay in posting this update. It was probably caused by the US Govt. shutdown but the site is back in action and the 2019 'Astronomical Phenomena' is now available.
    coylemj wrote: »
    The 2018 two-page 'Astronomical Information Sheet' for 2018 is now available to download from HMNAO here....

    http://astro.ukho.gov.uk/nao/online/index.html#calendar

    And the US Naval Observatory have kindly made the full 80 page 'Astronomical Phenomena' book available to download free here .....

    http://aa.usno.navy.mil/publications/docs/ap.php


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    #8
    coylemj
    Registered Users Posts: 25,345 ✭✭✭✭coylemj


    The 2020 AIS sheet is now available at the link below. For the first time that I can recall, they list penumbral lunar eclipses, probably because they are the only lunar eclipses (four of them) happening in 2020.

    http://astro.ukho.gov.uk/nao/online/index.html#calendar

    Things are not so good stateside, possibly because of the way the current US administration is treating science in general. The US Naval Observatory website is undergoing an upgrade which is expected to take six months :eek: from last October to April 2020.

    Try the links at this webpage anyway, you may get either website not available or taking too long to respond. 'Astronomical Phenomena' (PDF download) is a shortened (91 pages in 2019) version of the Astronomical Almanac. I haven't yet managed to download the 2020 version.

    https://www.usno.navy.mil/USNO/astronomical-applications/publications


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