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WikiCards · Card list · History cards · Celestial sphere
Uncommon card · History
Celestial sphere, an Uncommon card
In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth.
- Rarity
- Uncommon
- Domain
- History
- ATK
- 63
- DEF
- 35
- Power
- 98
- Wikipedia reads a year
- 75,000
Power 98 (ATK + DEF): stronger than 40 % of WikiCards cards.
Celestial sphere quiz: 3 questions
Three questions on the Celestial sphere card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
If centered on the observer, half of the sphere would resemble a ______ screen over the observing location.
Answer
hemispherical. If centered on the observer, half of the sphere would resemble a hemispherical screen over the observing location. From the Celestial sphere article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
List of United Kingdom locations: Dr. List of United Kingdom locations: Dr 72 · Celestial sphere 63 · Varginha UFO incident 59 · Filippo Cordova 56 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Varginha UFO incident. Varginha UFO incident 190,000 · Celestial sphere 75,000 · List of United Kingdom locations: Dr 480 · Agostino Petitti Bagliani di Roreto 270 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- All objects in the sky can be conceived as being projected upon the inner surface of the celestial sphere, which may be centered on Earth or the observer.
- If centered on the observer, half of the sphere would resemble a hemispherical screen over the observing location.
- The celestial sphere is a conceptual tool used in spherical astronomy to specify the position of an object in the sky without consideration of its linear distance from the observer.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Celestial sphere article was read about 75,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 63 and blocks with 35: each hit it takes is cut by 14 %.
How to get Celestial sphere
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More History cards
Cards close in power
The cards just above and just below Celestial sphere in the power ranking, all domains together.
- LiturgyUncommon · Society · ATK 59 DEF 39
- Martin BaronUncommon · Society · ATK 60 DEF 38
- Charolais cattleUncommon · Nature · ATK 53 DEF 45
- BoulevardUncommon · Society · ATK 56 DEF 42
- MegastructureUncommon · Science · ATK 62 DEF 37
- Celtic SeaUncommon · Nature · ATK 57 DEF 41
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- History cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Celestial sphere (revision), CC BY-SA 4.0. Photo : ChristianReady, CC BY-SA 4.0, Wikimedia Commons.
