WikiCards
Play on iPhone nowFree in Safari. Add it to your Home Screen.Play
WikiCards · Card list · Science cards · Hayashi track
Common card · Science
Hayashi track, a Common card
The Hayashi track is a luminosity–temperature relationship obeyed by infant stars of less than 3 M☉ in the pre-main-sequence phase of stellar evolution.
- Rarity
- Common
- Domain
- Science
- ATK
- 67
- DEF
- 38
- Power
- 105
- Wikipedia reads a year
- 11,000
Power 105 (ATK + DEF): stronger than 45 % of WikiCards cards.
Hayashi track quiz: 3 questions
Three questions on the Hayashi track card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is named after Japanese ______ Chushiro Hayashi.
Answer
astrophysicist. It is named after Japanese astrophysicist Chushiro Hayashi. From the Hayashi track article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Hayashi track. Hayashi track 67 · Rotary converter 62 · Clinton Davisson 58 · Muhammad's eclipse 53 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 is named after Japanese astrophysicist Chushiro Hayashi.
- On the Hertzsprung–Russell diagram, which plots luminosity against temperature, the track is a nearly vertical curve.
- After a protostar ends its phase of rapid contraction and becomes a T Tauri star, it is extremely luminous.
Why it is Common
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Hayashi track article was read about 11,000 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 38: each hit it takes is cut by 15 %.
How to get Hayashi track
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 Hayashi track in the power ranking, all domains together.
- Doug HarveyCommon · Society · ATK 61 DEF 44
- Frank FosterCommon · Arts · ATK 65 DEF 40
- Gaius Asinius PollioCommon · Arts · ATK 61 DEF 44
- James PagetCommon · Science · ATK 64 DEF 41
- Léon BrillouinCommon · Science · ATK 62 DEF 43
- MaguiresbridgeCommon · Nature · ATK 56 DEF 49
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, Hayashi track (revision), CC BY-SA 4.0. Photo : Patrick87, Public domain, Wikimedia Commons.
