Crossword-Solution: CYGNI 5 letters, 3 clues 🏆 scrabble score: 11

Now, as the velocity is assumed to be the same in both cases, the ratio between the distance (already so tremendous) of Bessel's 61 _Cygni_, and that of Lord Rosse's farthest frontier, is as forty- one thousand to two hundred and fifty millions.

Now, as the velocity is assumed to be the same in both cases, the ratio between the distance (already so tremendous) of Bessel's 61 _Cygni_, and that of Lord Rosse's farthest frontier, is as forty-one thousand to two hundred and fifty millions.

But a sensible parallax of about one second has been ascertained in the case of the double star, α α, of the constellation of the Centaur, {3} and one of the third of that amount for the double star, 61 Cygni; which gave reason to presume that the distance of the former might be about twenty thousand millions of miles, and the latter of much greater amount.

The lightyear is taken as the unit of measurement in the starry heavens, as the earth’s mean distance is “the astronomical unit” for the solar system.[3] The proper motions and parallaxes combined tell us the velocity of the motion of these stars across the line of sight: α Centauri 14.4 miles a second=4.2 astronomical units a year; 61 Cygni 37.9 miles a second=11.2 astronomical units a year.

The binary star, Sixty-one Cygni, the nearest north of the equator, moves eight seconds every year, a displacement equal in three hundred and sixty years to the apparent diameter of the moon.