Your grade journey
Edexcel GCSE Astronomygrade boundaries
Explore official boundaries. See where your marks take you.
1AS03 official seriesMaximum mark 200
Exam series
Flight log / June 2026
Grade boundaries
OfficialAll papers · 01 / 02 · Out of 200
Grade 9
161
marks / 200
Grade 7
131
marks / 200
Grade 5
101
marks / 200
Grade 4
86
marks / 200
All grade thresholds
| Grade | Minimum mark | Mark range | % of maximum |
|---|---|---|---|
| 9 | 161 | 161–200 | 81% |
| 8 | 146 | 146–160 | 73% |
| 7 | 131 | 131–145 | 66% |
| 6 | 116 | 116–130 | 58% |
| 5 | 101 | 101–115 | 51% |
| 4 | 86 | 86–100 | 43% |
| 3 | 66 | 66–85 | 33% |
| 2 | 47 | 47–65 | 24% |
| 1 | 28 | 28–46 | 14% |
| U | Below 28 | ||
These boundaries apply to this exam series and route. Paper maximums ↗
How these boundaries have changed
All papers, every official series. Boundaries move each year with how hard the papers were.
| Series | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|
| June 2026 | 161-1 | 146-1 | 131-2 | 116-2 | 101-2 | 86-2 | 66-2 | 47-2 | 28-2 |
| June 2025 | 162+6 | 147+7 | 133+9 | 118+9 | 103+9 | 88+8 | 68+8 | 49+8 | 30+8 |
| June 2024 | 156 | 140 | 124 | 109 | 94 | 80 | 60 | 41 | 22 |
+ higher than the same series a year earlier (harder to reach) · − lower (easier to reach).
Grade calculator
June 2026 · All papers
Enter your mark for each paper to see your grade.
131 marks needed for Grade 7.
Frequently asked questions
What did you need for a grade 4 in Astronomy in June 2026?
In June 2026, grade 4 in Pearson Edexcel GCSE Astronomy (1AS0) needed 86 out of 200 on all papers.
What was the boundary for a grade 9 in June 2026?
161 out of 200 on all papers — the top grade for GCSE Astronomy in June 2026.
How is my grade worked out?
Your marks from each paper are added up (scaled by a weighting factor where papers count differently) to give your subject mark, which is then compared with the boundaries. Your grade comes from the total — not from each paper separately.
When will the next boundaries be published?
Pearson Edexcel publishes grade boundaries on results day for each series. Until then, any figures shown for a future series are Starley estimates, clearly labelled, based on recent years.