By Kevin Manning
Astronomy is the main fascinating and enjoyable subject within the universe. after all, i'm a section biased, yet don't you settle? utilizing a telescope to determine the invisible and glance some distance again in time, exploring the universe to benefit approximately meteors, the Moon, comets, asteroids, superstar clusters, nebulae and galaxies, and attempting to comprehend the function of black holes, darkish subject, and darkish strength, are all coated during this relaxing textual content.
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Additional resources for 101 Fun Facts on Astronomy
1 8. Harriot MSS, HMC 241/8, p. 2. Thomas Harriot’s observation of the Sun, 11 December 1611. Harriot MSS, HMC 241/8, p. 2. Courtesy of Lord Egremont. instrument-maker and factotum, Christopher Tooke, as participants and witnesses to the observation. The spots are clearly identified as “blacke spots,” and their sizes and shapes are described. This was no casual observation, and perhaps the astrological symbols in the box at the lower right (see fig. 2) provide the reason for this care, for they indicate that according to the ephemerides on this day there was a conjunction of Venus with the Sun.
2. Harriot MSS, HMC 241/8, p. 1 Turning the telescope to the Sun 27 time and conditions of observation. It was early on a December morning, the Sun was still close to the horizon, and the air was misty. At such times more of the solar rays are scattered during their long trip through the thick atmosphere, and the Sun appears as a pale reddish-yellow disk. Conditions such as these were optimal for the direct observation of sunspots. With the telescopes used in 1610—instruments with apertures of perhaps 1 to 112 cm—it was just possible to manage a very brief look at the Sun.
2 This is the oldest surviving record of a telescopic observation of spots on the Sun; it is also one of the most interesting ones. Harriot had been observing the nighttime heavens through a telescope for eighteen months—since at least early August 1609—and we may well ask why he and others had waited so long before turning their instruments to the Sun. Part of the answer surely lies in the 1. ” England was still on the Julian calendar: 8 December Julian = 18 December Gregorian. 2. Harriot MSS, HMC 241/8, p.
101 Fun Facts on Astronomy by Kevin Manning