Largest Constellations by Area
Key Findings
🏆
Hydra leads in Area (square degrees) with 1,302.80.
📊
Average Area (square degrees): 1,172 · median: 1,182.
↔️
Gap: Hydra is 1.3× larger than Aquarius.
About This Dataset
Largest Constellations by Area
This chart ranks the largest of the 88 official constellations by the area of sky they cover, in square degrees, as defined by the International Astronomical Union. Hydra, the water snake, is the largest.
Analysis
Aquarius (979.9), Centaurus (1,060.4) and Draco (1,083) take the top three in Area (square degrees). Values run from 1,302.8 at the top to 979.9 at the bottom in Area (square degrees), a spread of 322.9. First and second are separated by 80.5, so the leader sits inside the field rather than apart from it. Below the top two the field is tightly packed: the remaining 8 run from 1,302.8 down to 1,083 Area (square degrees).
Data Insights
Numbers, trends & sources behind this chart
Methodology & source
- Data source
- IAU designated constellations by area
- Coverage
- 10 entities · 10 observations
- Measure
- Area (square degrees)
- Last updated
- 6 September 2026
- Compiled by
- The ANYSTAT team, from the source above
How the figures are calculated
- Values are shown as reported by the source. Nothing is rescaled, rebased or converted — the only changes are thousand separators and decimals shown to two places.
- Entities are ranked highest-first on their value.
Data Sources & References
All external sources cited in this dataset
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