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WikiCards · Card list · Science cards · Cat's Eye Nebula
Uncommon card · Science
Cat's Eye Nebula, an Uncommon card
The Cat's Eye Nebula is a planetary nebula in the northern constellation of Draco, discovered by William Herschel on February 15, 1786.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 67
- DEF
- 72
- Power
- 139
- Wikipedia reads a year
- 50,000
Ranked #2,129 of the 2,999 cards of the base set by power (ATK + DEF).
Cat's Eye Nebula quiz: 3 questions
Three questions on the Cat's Eye Nebula card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is a well-studied object that has been observed from radio to X-ray ______.
Answer
wavelengths. It is a well-studied object that has been observed from radio to X-ray wavelengths. From the Cat's Eye Nebula article on Wikipedia.
In which decade?
The Cat's Eye Nebula is a planetary nebula in the northern constellation of Draco, discovered by William Herschel on February 15, ____.
Answer
1780s. The Cat's Eye Nebula is a planetary nebula in the northern constellation of Draco, discovered by William Herschel on February 15, 1786. From the Cat's Eye Nebula article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Identity theft. Identity theft 81 · Azeotrope 71 · Cat's Eye Nebula 67 · Yin Yoga 64 ATK in WikiCards.
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.
- It was the first planetary nebula whose spectrum was investigated by the English amateur astronomer William Huggins, demonstrating that planetary nebulae were gaseous and not stellar in nature.
- Structurally, the object has had high-resolution images by the Hubble Space Telescope revealing knots, jets, bubbles and complex arcs, being illuminated by the central hot planetary nebula nucleus.
- It is a well-studied object that has been observed from radio to X-ray wavelengths.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Cat's Eye Nebula article was read about 50,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 67 and blocks with 72: each hit it takes is cut by 29 %.
How to get Cat's Eye Nebula
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.
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- UrsulinesUncommon · Society · ATK 71 DEF 68
- Biological life cycleUncommon · Society · ATK 67 DEF 72
- Alan MulallyUncommon · Society · ATK 71 DEF 68
Card lists
- Wikipedia quizNew questions every day
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Credits
Text : Wikipedia, Cat's Eye Nebula (revision), CC BY-SA 4.0. Photo : ESA/Hubble & NASA, Z. Tsvetanov, CC BY 4.0, Wikimedia Commons.
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