Assertion: celestial sphere's star | /r/HasProperty | visible
Facets:
value: at night
type: TEMPORAL
value: throughout the year
type: TEMPORAL
value: in rome
type: LOCATION
value: in ancient greece
type: LOCATION
value: culminate at the meridian,
type: TEMPORAL
value: always
type: DEGREE
value: a year later
type: TEMPORAL
value: easily
type: MANNER
value: to the naked eye
type: TRANSITIVE-OBJECT
value: in the southern sky
type: LOCATION
value: at local midnight
type: TEMPORAL
value: in other words
type: OTHER
value: from most of the southern hemisphere
type: LOCATION
value: under optimal conditions
type: OTHER
Source sentences:
text: Under optimal conditions, approximately 6,000 stars are visible to the naked eye of an observer on Earth.
text: At the Earth's North Pole, the north celestial pole is directly overhead, and all stars that are visible at all (that is, all stars in the Northern Celestial Hemisphere) are circumpolar.
text: At the North or South Pole all stars that are visible at all are circumpolar, since only one half of the celestial sphere can ever be seen.
text: The stars that are close to the poles never set below the horizon for observers in locations where the stars are visible: they are circumpolar.
text: In ancient Greece and Rome, the stars of Crux were visible and considered part of the larger Centaurus constellation.
text: In other words, from most of the southern hemisphere, the stars are visible throughout the year.
text: About 6000 stars are visible with the naked eye on a dark, moonless night.
text: In ancient Greece and Rome, the stars of Crux were visible and considered part of Centaurus constellation.
text: Even more stars are visible in the southern sky, making clockwise half-circles about a point on the southern horizon, the south celestial pole.
text: From the South Pole, in good visibility conditions, the Southern Sky features over 2,000 fixed stars that are easily visible to the naked eye, while about 20,000 to 40,000 with the aided eye.[citation needed][dubious – discuss]
text: Half a year later the stars that were hidden during local noon are visible at local midnight because the Earth has moved so as to show a different "side" to the Sun during that part of the day.
text: All stars are visible as they rise, culminate at the meridian, and set.
text: These stars are visible at night only during that part of the year when the Sun is in the opposite part of the sky.
text: Because of this some stars never set and are always visible.