Visit our Christmas Gift Finder
Hansen's Improved Ex-meridian Tables (Hardback)
  • Hansen's Improved Ex-meridian Tables (Hardback)
zoom

Hansen's Improved Ex-meridian Tables (Hardback)

(author), (revisor)
£15.00
Hardback 144 Pages / Published: 01/01/1978
  • Not available

This product is currently unavailable.

  • This item has been added to your basket
Latitude by ex-Meridian altitudes is as necessary as observations for longitude, but as the sights should be frequent to ensure accuracy, the ordinary methods are tedious. The general principle upon which the tables are calculated is that the corrections in each following table is slightly less than in the previous, the difference between any two consecutive tables is only 1' in an hour angle of 15' (where the tables extend to that angle). The introduction of Local Hour Angle in are, instead of in Time, has made necessary a revision in the layout of these tables. In all cases the tables are entered with the L.N.A. of the heavenly body observed. It is confidently expected that the necessary innovation will commend itself to navigators. An observation may be taken out by sight without any interpolation whatsoever. They are calculated from Latitude 60' N. to 60' S., and declination up to 23'., and are equally applicable for Moon, Stars or Planets, when their declinations do not exceed 23' N. or S. Masters, Trimmers, Stevedores, etc, will find the tables of great value.

Publisher: Brown, Son & Ferguson Ltd
ISBN: 9780851740935
Number of pages: 144
Weight: 189 g
Dimensions: 185 x 120 x 12 mm
Edition: Revised edition

You may also be interested in...

West Aegean
Added to basket
£19.95
Paperback
Arctic Adventurer
Added to basket
£9.95
Paperback
Cockpit Companion 2e
Added to basket
Reeds Weather Handbook
Added to basket
Passage To Juneau
Added to basket
£12.99
Paperback
RYA Day Skipper Handbook - Sail
Added to basket
RYA Training Chart: No. 3
Added to basket
£5.99
Sheet map, folded
Skipper's Cockpit Guide
Added to basket
£10.99
Spiral bound
RYA Navigation Exercises
Added to basket
Day Skipper Exercises for Sail and Power
Added to basket
RYA VHF Handbook
Added to basket
£15.49
Paperback
Finding Your Way Without Map or Compass
Added to basket
Reeds Skipper's Handbook
Added to basket
Sail and Rig Tuning
Added to basket
£13.99
Paperback
Skye & Northwest Scotland
Added to basket
Hevva!
Added to basket
£5.99
Paperback

Reviews

Please sign in to write a review

Your review has been submitted successfully.