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WikiCards · Card list · Science cards · K2-18b
Rare card · Science
K2-18b, a Rare card
K2-18b, also known as EPIC 201912552 b, is an exoplanet orbiting the red dwarf K2-18, located 124 light-years away from Earth.
- Rarity
- Rare
- Domain
- Science
- ATK
- 78
- DEF
- 100
- Power
- 178
- Wikipedia reads a year
- 230,000
Power 178 (ATK + DEF): stronger than 90 % of WikiCards cards.
K2-18b quiz: 3 questions
Three questions on the K2-18b card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
JWST discovered water vapour, carbon dioxide and methane in its ______.
Answer
atmosphere. JWST discovered water vapour, carbon dioxide and methane in its atmosphere. From the K2-18b article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Alexander von Humboldt. Alexander von Humboldt 93 · Passport 86 · Cholesterol 83 · K2-18b 78 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.
- The planet is a sub-Neptune about 2.6 times the radius of Earth, with a 33-day orbit within the star's habitable zone, it receives approximately a similar amount of light as the Earth receives from the Sun.
- Initially discovered with the Kepler space telescope, it was later observed by the James Webb Space Telescope in order to study the planet's atmosphere.
- JWST discovered water vapour, carbon dioxide and methane in its atmosphere.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The K2-18b article was read about 230,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 78 and blocks with 100: each hit it takes is cut by 40 %.
How to get K2-18b
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 Science cards
Cards close in power
The cards just above and just below K2-18b in the power ranking, all domains together.
- Ed WhiteRare · History · ATK 78 DEF 100
- GreenRare · Science · ATK 85 DEF 93
- Jill SteinRare · History · ATK 86 DEF 92
- Programme for International Student AssessmentRare · Society · ATK 89 DEF 89
- Sergei KorolevRare · History · ATK 82 DEF 96
- History of writingRare · History · ATK 86 DEF 92
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, K2-18b (revision), CC BY-SA 4.0. Photo : Illustration: NASA, ESA, CSA, Joseph Olmsted (STScI) Science: Nikku Madhusudhan (IoA), Public domain, Wikimedia Commons.
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