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WikiCards · Card list · Science cards · Cepheid variable
Uncommon card · Science
Cepheid variable, an Uncommon card
A Cepheid variable is a type of variable star that pulsates radially, varying in both diameter and temperature.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 73
- DEF
- 79
- Power
- 152
- Wikipedia reads a year
- 62,000
Ranked #1,573 of the 3,000 cards of the base set by power (ATK + DEF).
The facts on the card
The card carries these facts from its Wikipedia article.
- It changes in brightness, with a well-defined stable period and amplitude.
- Cepheids are important cosmic benchmarks for scaling galactic and extragalactic distances, a strong direct relationship exists between a Cepheid variable's luminosity and its pulsation period.
- This characteristic of classical Cepheids was discovered in 1908 by Henrietta Swan Leavitt when she studied thousands of variable stars in the Magellanic Clouds.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Cepheid variable article was read about 62,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 73 and blocks with 79: each hit it takes is cut by 32 %.
How to get Cepheid variable
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
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Card lists
- All cards from A to ZEvery card, by name
- Nature cards600 cards
- Science cards600 cards
- History cards600 cards
- Arts cards600 cards
- Society cards600 cards
- Tier listS and A tiers by power (ATK + DEF)
- Legendary cards136 cards
- Epic cards262 cards
- Strongest cardsTop 100 by attack
Credits
Text : Wikipedia, Cepheid variable (revision), CC BY-SA 4.0. Photo : NASA, ESA, and the Hubble Heritage Team (STScI/AURA)-Hubble/Europe Collaboration, Acknowle, Public domain, Wikimedia Commons.
