The duration of twilight , details of equinoxes , solstices and eclipses in 2004 as well as climatological normals of hong kong and some major cities for each month of the year are also given in this publication
2.
The duration of twilight , details of equinoxes , solstices and eclipses in 2003 as well as climatological normals of hong kong and some major cities for each month of the year are also given in this publication
3.
The duration of twilight , details of equinoxes , solstices , eclipses , information on calendar , observation of meteor streams and planetary phenomena as well as climatological " normals " of hong kong and some major cities for each month of the year are also given in this publication
4.
The star maps of the four quarters of the year 2006 , duration of twilight , details of equinoxes , solstices , eclipses , information on calendar , observation of meteor streams and planetary phenomena as well as climatological information of hong kong and selected cities for each month of the year are also given in this publication
5.
The star maps of the four quarters of the year 2006 , duration of twilight , details of equinoxes , solstices , eclipses , information on calendar , observation of meteor streams and planetary phenomena as well as climatological information of hong kong and selected cities for each month of the year are also given in this publication
6.
The star maps of the four quarters of the year 2006 , duration of twilight , details of equinoxes , solstices , eclipses , information on calendar , observation of meteor streams and planetary phenomena as well as climatological information of hong kong and selected cities for each month of the year are also given in this publication
7.
The star maps of the four quarters of the year 2007 , duration of twilight , details of equinoxes , solstices , eclipses , information on observation of meteor streams and planetary phenomena as well as climatological information of hong kong and selected cities for each month of the year are also given in the publication
मोबाइल