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31 It was named after astronomer George Ellery Hale.

32 Finally one day, an astronomer came to our village.

33 Is the most famous astronomer Ptolemy.

33 Wish you can benefit from our online sentence dictionary and make progress day by day!

34 According to a Cornell astronomer, it's just rock formation.

35 Unlike the classical planets, which telescopes revealed as little disks, both these bodies appeared as mere pinpricks of light. English astronomer William Herschel proposed naming them "asteroids."

36 The last time a lunar eclipse occurred on the winter solstice, astronomer Galileo Galilei was languishing under house arrest for suggesting the Earth circled the sun.

37 If, however, an astronomer can make an estimate of the mass of that donor, then you will find the mass of the accretor.

38 Known as Enceladus after the mythological Greek giant, the moon was discovered by astronomer William Herschel in 1789 and is nothing short of a cosmic fantasyland.

39 The amateur astronomer must consult the exposure meter and not rely on his senses.

40 Kuiper crater is named for Gerard Kuiper, a Dutch-American astronomer who was also a member of the Mariner 10 team.

41 American astronomer George Ellery Hale built a number of great telescopes, including the 100-inch Hooker telescope on Mount Wilson outside Los Angeles.

42 The paper said that Sir John Herschel, a famous British astronomer, had invented a powerful telescope.

43 Polish astronomer who advanced the theory that the earth and other planets revolve around the sun, disrupting the Ptolemaic system of astronomy.

44 Famed astronomer Johannes Kepler noticed that comet tails always point away from the sun, implying that sunlight itself was pushing them around like cosmic windsocks.

45 Vera Rubin, a young astronomer at the Department of Terrestrial Magnetism at the Carnegie Institution of Washington, observed the speeds of stars at various locations in galaxies.

46 Jim calculates a solar eclipse easily because he is an astronomer.

47 The supernova was named after the famous astronomer Tycho Brahe, who was one of the people who observed and recorded the supernova when it first appeared in the sky in November 1572.

48 The astronomer look at the starry sky, trying to locate centaur.

49 American astronomer Edwin Hubble first developed a classification system in the 1930s, known as the Hubble Sequence, which divides galaxies into two main types: spirals, and ellipticals.

50 British astronomer John Herschel first recorded NGC 6334 in 1837 during his stay in South Africa.

51 The concept of space sails dates back the 16th century, when German astronomer Johannes Kepler first came up with the idea of using the sun's energy to propel objects through space.

52 It is the only tangible object the astronomer can handle.

53 In 1930, astronomer Clyde Tombaugh discovered the dwarf planet Pluto while looking at photographs of the night sky.

54 The red circle in the upper left part of this image is SN 1572, often called "Tycho's Supernova" for Renaissance astronomer Tycho Brahe.

55 Astronomer Art Hoag first asked this question when he chanced upon this unusual extragalactic object.

56 The magnitude of a star is based on a scale more than 2,000 years old, devised by Greek astronomer Hipparchus in about 125 BC.

57 German astronomer who first stated laws of planetary motion ( 1571 - 1630 ).

58 Christian Huygens, Dutch scientist and astronomer, was born at The Hague the son of a poet.

59 The Greek philosopher Anaximander, a biologist, geographer, and astronomer, organizes a map of the world.

60 Indeed the church would imprison Galileo Galilei, an Italian astronomer, for advocating the sun-centred model of the universe a century later.