The Astronomical Data Portal @ UK Hydrographic Office
Products and Services of
Her Majesty's Nautical Almanac Office

 Lt. Cmdr. Tony Jenks taking a Sun sight aboard HMS Scott: photograph © Catherine Hohenkerk.
@ HM Nautical Almanac Office / @ Webmaster / Privacy Policy
© 2011-2016 Crown Copyright / Last modified: 2012 January 16