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WikiCards · Card list · Science cards · Reflection nebula
Uncommon card · Science
Reflection nebula, an Uncommon card
In astronomy, reflection nebulae are clouds of interstellar dust which might reflect the light of a nearby star or stars.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 46
- DEF
- 32
- Power
- 78
- Wikipedia reads a year
- 18,000
Power 78 (ATK + DEF): stronger than 20 % of WikiCards cards.
Reflection nebula quiz: 3 questions
Three questions on the Reflection nebula card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Thus, the frequency spectrum shown by reflection nebulae is similar to that of the ______ stars.
Answer
illuminating. Thus, the frequency spectrum shown by reflection nebulae is similar to that of the illuminating stars. From the Reflection nebula article on Wikipedia.
Which of these Wikipedia articles is read the most in a year?
Answer
Graph of a function. Graph of a function 36,000 · Applied arts 28,000 · Reflection nebula 18,000 · Acetoin 12,000 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.
- The energy from the nearby stars is insufficient to ionize the gas of the nebula to create an emission nebula, but is sufficient to make the dust visible via scattering effects.
- Thus, the frequency spectrum shown by reflection nebulae is similar to that of the illuminating stars.
- Among the microscopic particles responsible for the scattering are carbon compounds and compounds of other elements such as iron and nickel.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Reflection nebula article was read about 18,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 46 and blocks with 32: each hit it takes is cut by 13 %.
How to get Reflection 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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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, Reflection nebula (revision), CC BY-SA 4.0. Photo : NASA/Gary Stevens, picture prepared by Adrian Pingstone, Public domain, Wikimedia Commons.
