2 pages matching Popular in this book
Results 1-2 of 2
What people are saying - Write a review
We haven't found any reviews in the usual places.
accordingly actual comparison Address advise April Arrange assigned astronomical Blank bright star brighter call carefully Ceti chart check circles clouds comparison stars configuration considered correct data date December declination designation number determined the magnitude difficulties direction directly discrepancies equals equator estimate extreme fainter field of view frequent give given glasses Greenwich tenth Harvard held horizon hour and minute inches aperture indicated INSTRUCTIONS Instrument interval invisible irregular variables Julian Day larger line connecting maps mean members merely meridian midnight month and day moonlight noon NORTH end North Pole northern note number and name observations Observatory order period plot point Popular position possible printing proceed provided quest readily record region report right ascension scope Secretary secure seen setting Sidereal south southern STANDARD star atlas stars are designated stars whose magnitudes success sure table Tauri tele telescope three usually suffice vari VARIABLE STAR visibility West write zenith