Norton's Star Atlas and Reference Handbook (epoch 1950.0).Gall & Inglis, 1973 - 116 pagine |
Dall'interno del libro
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Pagina 61
... observed . This also results in the rings presenting a constantly changing aspect . Twice during each sidereal revolution of the planet , when the Earth passes through the ring - plane , they are edge - on to the Earth and generally ...
... observed . This also results in the rings presenting a constantly changing aspect . Twice during each sidereal revolution of the planet , when the Earth passes through the ring - plane , they are edge - on to the Earth and generally ...
Pagina 65
... observed . Such features often prove , if observed for several days , to have quite rapid movements relative to the more stable background features . Quite the most remarkable feature observed on Jupiter is the Great Red Spot - a huge ...
... observed . Such features often prove , if observed for several days , to have quite rapid movements relative to the more stable background features . Quite the most remarkable feature observed on Jupiter is the Great Red Spot - a huge ...
Pagina 69
... observe . In the case of Mercury , its proximity to the Sun and small observed disk render it difficult to observe at all most of the time , and quite large apertures are required to show any but the most prominent of the dark markings ...
... observe . In the case of Mercury , its proximity to the Sun and small observed disk render it difficult to observe at all most of the time , and quite large apertures are required to show any but the most prominent of the dark markings ...
Sommario
Useful Tables | 31 |
The Solar System | 41 |
Stars Nebula and Galaxies | 83 |
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Norton's Star Atlas and Reference Handbook (epoch 1950.0). Arthur Philip Norton,Christopher R. Kitchin Visualizzazione estratti - 1973 |
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Parole e frasi comuni
altitude angle aperture apparent apparent magnitude Astronomical atmosphere axis bright brighter Cassiopeia Catalogue celestial equator celestial sphere Centauri centre Cepheid co-ordinates colour comet constellation Corona craters Cygni Declination diameter disk distance Earth ecliptic epoch equatorial Equinox eyepiece focal length Galactic galaxy globular hemisphere horizon hour circle inferior planets Jupiter latitude light Little change longitude luminosity lunar Lyræ magnitude Main Sequence Mare Mars mean meridian minor planets Mira type Mira type Mira Moon Nebula Nova novæ observed open cluster orbit Orionis parallax parsecs planetary polar pole position proper motion R.A. Dec radiation Relatively fixed Right Ascension rotation period Sagittarii satellites Saturn seconds of arc seen sidereal Slow binary solar spectral Spectral Classification spectral type spectrum stellar Sun's sunspot surface TABLE telescope temperature transits type Mira type Ursa Majoris Variable Stars velocity Venus Virginis visible wavelength ΟΣ