Word: twilight
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Sputnik, it was found, would not be visible in the United States for about a week or ten days. Its orbit was such that it did not cross this country during the hours of morning or evening twilight, the only times at which it might be seen. The Moonwatch teams would have to wait until the orbit moved, or "precessed, enough for observation to be possible...
Fred L. Whipple, director of the Smithsonian Astrophysical Observatory here, said yesterday that a preliminary study of the rocket's orbit has shown that until that time it will not pass over this country during the hours of morning or evening twilight, the only times it can be sighted...
Whipple, again basing his predictions on announcements from Radio Moscow and from the Associated Press, indicated that the object's orbit might be turned in such a way that it would be visible at twilight this evening. Whipple said that it would be at least a few more days before it would be "a morning object." Moscow has announced that the satellite is broadcasting, as did the first one, on 20 and 40 megacycles alternately...
...Twilight Sight. The Russians made their sputnik more conveniently visible in their own territory than in the U.S. during its first trips around the earth, but U.S. observers will get their chance eventually. Dr. Joseph A. Hynek, director of the observatory's satellite-tracking program, calculates that the satellite's orbit shifts around the earth at 4° per day. This will bring it over the U.S. at twilight on about Oct. 20, when it should be visible through small telescopes or binoculars...
Walter Johnson, perhaps the greatest pitcher of all time, had a lifetime ambition to win a World Series game. The Senators, his club, were a perennial second-division team. In the twilight of his career, however, the Senators won a pennant and met the Giants in the 1924 Series...