Popular Astronomy, Volume 52Goodsell Observatory of Carleton College, 1944 |
From inside the book
Results 1-3 of 56
Page 100
... visual curve . The visual curve is fortunate- ly more nearly complete than the photographic curve , because of the star's more favorable position the sky for southern observers in their winter seasons . Visual observations made since ...
... visual curve . The visual curve is fortunate- ly more nearly complete than the photographic curve , because of the star's more favorable position the sky for southern observers in their winter seasons . Visual observations made since ...
Page 201
... visual curve , principally in the duration of eclipse and of totality . Visual ( Dugan ) Photographic ( Gaposchkin ) Mag . Max . 8.55 Mag . Min . , 9.54 Mag . Min . 8.87 Duration of Eclipse 3.74 24.74 Duration of Totality 1.3 14.8 Time ...
... visual curve , principally in the duration of eclipse and of totality . Visual ( Dugan ) Photographic ( Gaposchkin ) Mag . Max . 8.55 Mag . Min . , 9.54 Mag . Min . 8.87 Duration of Eclipse 3.74 24.74 Duration of Totality 1.3 14.8 Time ...
Page 418
... visual work that for the last decade in America the 40 - inch at Yerkes Observatory and the 18 - inch refractor at Flower Observatory are almost the only large telescopes used much of the time for visual observations on double stars ...
... visual work that for the last decade in America the 40 - inch at Yerkes Observatory and the 18 - inch refractor at Flower Observatory are almost the only large telescopes used much of the time for visual observations on double stars ...
Contents
THE MILKY WAY BART J BOK | 261 |
EXPERIMENTAL MOON CRATERS WILly Ley | 278 |
RECURRENCE OF FLOODS AND DROUTHS AFTER INTERVALS | 284 |
13 other sections not shown
Other editions - View all
Common terms and phrases
absorption appear April Arabic Astr Astronomical Society August average B.Taur binary bright Catalogue Cepheids clusters color computed coördinate number crater cycle Cygni derived diameter distance distribution double stars earth eclipse emission Ephemeris fall field fireball galactic center galaxy given Greenwich Harvard indicated interstellar investigation July Jupiter km/sec latitude Lick Observatory light curve lines magnitude Mars mass maximum measured meteor meteorite method miles Milky months Moon nebulae Notes Nova object Observatory obtained OCCULTATIONS VISIBLE October orbit Otto Struve oxide parallaxes perihelion photographic planet plates position present probably proper motions Pulkovo radial velocities record region relative right ascension rotation Saturn Shapley siderite solar spectral class spectral types spectroscopic spectrum spots SS Cygni star density stellar Struve sunspots Table telescope temperature tion University Variable Star VISIBLE IN LONGITUDE visual Wilson