Angular separation
What Angular separation means in Physics A-Level, as defined for AQA.
Definition of Angular separation
Check what you remember
Read the wording for your board, then hide it and explain Angular separation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The tiny angle between star and planet, about 0.1 arcsecond at 10 parsecs, which is below the resolution of most telescopes.
Topics that use Angular separation
- Detection of exoplanets (A-level only) (AQA A-Level)
Related terms
Using Angular separation in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge