Unusual Orbits in the Andromeda Galaxy

Path closures in Greenwich Park

Resurfacing work is taking place outside the Royal Observatory from 11-17 November. The Observatory will still open every day as usual, but the path up the hill through Greenwich Park will be closed. Visitors should instead follow the main avenue through the Park or arrive via Blackheath Gate: see this map for more information.

Essential Information

Location	Royal Observatory
Key Stage	Post-16
School Subject	Astronomy, Maths, Science
Resource Type	Classroom activity

A classroom activity in which students predict and then measure the rotational velocity of material in a nearby galaxy, using their knowledge of gravitation and Doppler shifts to deduce the presence of dark matter.

Download P16 Unusual orbits in the Andromeda galaxy.pdf

pdf, 1.93 MB