3 ms·
>It's impossible to triangulate those huge distances Galaxies are BIG. Andromeda is faint, but the same angular size as the moon. It's 2.5Mly away, but it's al
by javajosh 3y ago
>It's impossible to triangulate those huge distances
Galaxies are BIG. Andromeda is faint, but the same angular size as the moon. It's 2.5Mly away, but it's also 150kly across. Over a long enough time line you could do triangulation on it. In fact it's moving toward our galaxy, but very, very slowly compared with its diameter at 110kps. But yeah, in theory you could do triangulation on it over a very long period of time.
- mr_toad 3y agoFor triangulation to work you need to move, not your target. Triangulation is only used for objects within about 1000 parsecs, where we can triangulate using the movement of the Earth along its orbit.