Astronomy (2017)
Group 4 school-based syllabus subject
Assessments from 2017 to Present
Past Syllabuses
Grade Calculator
Astronomy is offered only at the SL level
Predicted Grade
50
Predicted Mark
Using the undefined grade boundary
0
Graphs
Predicted Mark Probability Distribution
Historical Grade Boundaries
Astronomy is offered only at the SL level
Historical Grade Boundaries Graph for
SL Astronomy
SL Astronomy
SL Astronomy | |||||||
---|---|---|---|---|---|---|---|
Boundary* | Markband (≥) | ||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | |
M24 TZ0 | 0 | 12 | 23 | 32 | 43 | 54 | 65 |

Educators Predicted Grades Excel Tool
*Timezone 0 (Worldwide)
*Timezone 1 (North America, South America)
*Timezone 2 (Europe, Africa, Asia, Australia, Oceania)
NOTE: N20, M21, N21, M22, N22 grade boundaries were artificially low due to COVID.
NOTE: Beware of using outdated grade boundaries. Many subjects have since updated their syllabus.
NOTE: As a general trend (may not apply for all subjects), Timezone 2 usually have higher grade boundaries than Timezone 1. Make sure you use the correct timezone.
NOTE: As a general trend (may not apply for all subjects), November grade boundaries tend to be higher than those for May. Be careful not to compare apples to oranges!