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The HO 249 are the most common charts for astronomical navigation by hand.

Volume 1 is suitable for fixed stars with declination up to 80° and for star prediction. The validity is limited to 5 years.

Volumes 2 and 3 cover the geographical latitudes 0°-40° and 39°-89° (north/south) and declination up to 29°. Both volumes are suitable for sun, moon and planets with unlimited validity.

Differences between HO229 and HO249

 

Volume 1

Fixed stars with declination up to 80° and for star prediction Limited 

validity (5 years)

Volume 2

Geographic latitudes 0°-40° Declination up to 29° 

Unlimited validity

Volume 3

Geographic latitudes 39°-89° Declination up to 29°

Unlimited validity

 

 

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