Fourteen Weeks in Descriptive Astronomy |
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Page 272
... NEBULA . These are faint misty objects like specks of luminous clouds . They are generally either round or oval ... nebulæ have been resolved , and thus the number of clusters increased , while new nebulæ are being discovered to take ...
... NEBULA . These are faint misty objects like specks of luminous clouds . They are generally either round or oval ... nebulæ have been resolved , and thus the number of clusters increased , while new nebulæ are being discovered to take ...
Page 274
... nebula to be one continuous bed of stars of different sizes for its entire extent , it must comprise the enormous number ... nebulae have the form of a ring . There are but four of these " ring universes . " In Fig . 84 . NEBULA IN LYRA ...
... nebula to be one continuous bed of stars of different sizes for its entire extent , it must comprise the enormous number ... nebulae have the form of a ring . There are but four of these " ring universes . " In Fig . 84 . NEBULA IN LYRA ...
Page 275
Joel Dorman Steele. Fig . 85 . along the edge . Though apparently so small , its. SPIRAL CLUSTER IN CANES VENATICI . DUMB - BELL NEBULA . HERSCHEL'S THEORY OF THE MILKY. NEBULA . 275.
Joel Dorman Steele. Fig . 85 . along the edge . Though apparently so small , its. SPIRAL CLUSTER IN CANES VENATICI . DUMB - BELL NEBULA . HERSCHEL'S THEORY OF THE MILKY. NEBULA . 275.
Page 277
... nebulae are those which have no definite form . Many of them present all the irregularities of clouds torn and rent ... nebula " in the constellation Vul- pecula , and the " crab nebula " near the southern horn of Taurus . There is also ...
... nebulae are those which have no definite form . Many of them present all the irregularities of clouds torn and rent ... nebula " in the constellation Vul- pecula , and the " crab nebula " near the southern horn of Taurus . There is also ...
Page 278
... nebulae . - Certain changes take place among the nebula which can be accounted for only under the supposition that they , like some of the stars. 278 THE SIDEREAL SYSTEM .
... nebulae . - Certain changes take place among the nebula which can be accounted for only under the supposition that they , like some of the stars. 278 THE SIDEREAL SYSTEM .
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ancients Andromeda angle aphelion appear Aries astronomers atmosphere axis Boötes bright brilliant Canis Minor Capricornus Cassiopeia cause Celestial Sphere centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Hercules Herschel horizon inclined inferior conjunction inferior planet Jupiter latitude length light luminous lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon's motion move naked eye nearly nebula Neptune night node north pole Orion parallax pass path penumbra perihelion Perseus Pisces polar Polaris precession rays revolve ring rising Saturn seasons seen shine side sidereal sidereal day solar day solar system solstice space spots summer sun's surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible winter Zodiac