CAIE IGCSE Physics 6.2.3.8 Distance d of a far galaxy can be
Practise recognising how astronomers find the distance to a far galaxy, using supernova brightness rather than redshift speed data.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- state that the brightness of a supernova in the galaxy is used to determine distance
- choose distance evidence correctly when a table contrasts supernova brightness with redshift
6.2.3.8—Distance d of a far galaxy can be question 1
[Maximum number: 1]
The Milky Way is the galaxy in which the Solar System is located.
Astronomers determine the speed and distance from the Earth of a far galaxy that is moving away from the Earth.
State one different observation that is used to determine the distance to a far galaxy.
brightness of a supernova
B1
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