Bouvier's Familiar Astronomy, Or, An Introduction to the Study of the Heavens: Illustrated by Celestial Maps, and Upwards of 200 Finely Executed Engravings, to which is Added a Treatise on the Globes, and a Comprehensive Astronomical Dictionary : for the Use of Schools, Families, and Private StudentsChilds & Peterson, 1857 - 499 σελίδες |
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Σελίδα 144
... comets have comparatively bright centres , surrounded by an envelope having a cloudy or hairy appearance . Q. What is the BRIGHTER CENTRE of a comet called ? A. The brighter centre is called the comet's nucleus . Q. When comets first ...
... comets have comparatively bright centres , surrounded by an envelope having a cloudy or hairy appearance . Q. What is the BRIGHTER CENTRE of a comet called ? A. The brighter centre is called the comet's nucleus . Q. When comets first ...
Σελίδα 145
... comet ? A. The brighter point in the centre of the head . In some instances , a very minute star - like point has been observed in the nuclei of comets , but it is a rare occurrence . These planetary nuclei , as they are called ...
... comet ? A. The brighter point in the centre of the head . In some instances , a very minute star - like point has been observed in the nuclei of comets , but it is a rare occurrence . These planetary nuclei , as they are called ...
Σελίδα 153
... comet ? A. It is not known who was the discoverer ; it was recorded as first seen in the early part of the eighteenth century . But it is thus called in honor of M. Biela , of Josephstadt , in Bohemia , who ... comet of 1770 COMETS . 153.
... comet ? A. It is not known who was the discoverer ; it was recorded as first seen in the early part of the eighteenth century . But it is thus called in honor of M. Biela , of Josephstadt , in Bohemia , who ... comet of 1770 COMETS . 153.
Περιεχόμενα
PHYSICAL ASTRONOMY | 15 |
Angular Measurement | 27 |
VLSatellites | 60 |
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Bouvier's Familiar Astronomy, Or an Introduction to the Study of the Heavens ... Hannah Mary Bouvier Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Bouvier's Familiar Astronomy, Or an Introduction to the Study of the Heavens ... Hannah Mary Bouvier Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Συχνά εμφανιζόμενοι όροι και φράσεις
altitude angular appear Argo Navis Aries asteroid astronomical attraction axis azimuth Boötes brass meridian bright star called celestial centre circle comet constella constellation Cor Caroli degrees diameter disc discovered discovery distance double stars Earth Earth's orbit east eclipse equal equator equinoctial equinox figure fixed stars globe gravity heavenly bodies heavens hemisphere horizon hundred instrument Jupiter known latitude longitude lunar magnitude Mars means Mercury month Moon Moon's motion move nebula node northern object observations Observatory orbit parallax parallel passing perihelion period planet Polar pole Pole Star position principal star quadrant rays of light refraction represents revolution revolve round right ascension ring rising round the Sun satellite Saturn seen shadow sidereal Sir William Herschel Sirius situated solar southern constellation sphere Sun's place supposed surface telescope tion transit Uranus Ursa Ursa Major velocity Venus vertical visible zenith zodiac