CATEGORY TEAM
Ingenious inventions
Choose any three different Artifacts cards.
Compton Gamma Ray ObservatoryView card
A Sunday Afternoon on the Island of La Grande JatteView card
AbacusView cardCompton Gamma Ray Observatory
Uncommon cardThe Compton Gamma Ray Observatory was a space observatory in Earth orbit from 1991 to 2000.
A place in your collection
Compton Gamma Ray Observatory is one of 140 discoveries in the artifacts set. Find this card in a free discovery pack, or exchange 4 same-rarity duplicate cards from your collection to craft it. Fusing five Common cards always yields one Uncommon card, favouring ones you have not collected yet.
Its collectible power is 1100 and its shield is 450. Its health is 3310. These stats are derived from English Wikipedia data using capped game formulas. In battle it favours the Feint stance, like all Artifacts cards. Daily quiz results depend on your answers.
Open a discovery packWish for this cardRead about Compton Gamma Ray Observatory on WikipediaArticle description adapted from Wikipedia, available under CC BY-SA 4.0; shortened for the card. Revision and contributors are linked below.
Team combinations
Arena formations · 2 in one category: +3% ATK/DEF. Three: +6% all stats. A complete family or story: +10% all stats. Strongest bonus only.
Compton Gamma Ray ObservatoryView cardA Sunday Afternoon on the Island of La Grande JatteView cardAbacusView cardBEHIND THE DISCOVERY2026-10-06
A card. A real story.
Read on WikipediaOriginal article · English WikipediaThe Compton Gamma Ray Observatory was a space observatory in Earth orbit from 1991 to 2000.
ATTACK · 1,1004,844views · 90 days
DEFENSE · 45011citation entries
HEALTH · 3,3101,482article words
How these stats are calculated
English Wikipedia · 2026-07-09 – 2026-10-06. Views use Wikimedia’s “user” traffic classification, not unique visitors. Quality marker: not rated in this snapshot.
Stats use capped logarithmic scaling. Attack: 800–1,600 from daily views (cap 50,000). Defense: 200–800, weighted 80% citations (cap 300) and 20% quality marker. Health: 2,400–3,600 from prose words (cap 15,000). Values are rounded to tens. Citations indicate documentation volume, not verified truth. No rarity multiplier applies.
Snapshot wiki-2026-10-06-v1-atlas-expedition-01-daily-2026-10-10-atlas-expedition-02-daily-2026-10-11-atlas-expedition-03-daily-2026-10-12 · imported 2026-10-12. Live Wikipedia may have changed. Stats remain fixed until a new edition is released; an active duel keeps its starting stats.
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Image: NASA/Ken Cameron. Public domain. Resized and converted to WebP; cropped in card layouts. Original image and attribution.