Goodness. The part I do remember clearly is that it's what's used for locational magics, that's why they teach it.
She said something about precision mattering, that that's where most of the errors are. It's something about measuring the angle from where you are to a given point in the heavens (more than one is much better). And you need to know the time, as precisely as you can. You can use any number of stars, or planets, or even the sun or moon, but obviously, you need to know what you're looking at.
Or - I gather it's something where you can sort out the missing piece if you have two of the others: time, angle, and location. Because now I think about it, she was very proud of working out a piece for the punishment for that duelling club, to limit the area affected, and she had the time and the location there, and worked out the angles.
Only, blast. I do remember her saying it's a fairly uncommon skill. There's a few people in the Floo Network office who use it regularly. She does, an astronomer friend of hers, from her year. Maybe a dozen others, in all the Protectorate. (Well, as she said, it's "tedious, fiddly, and not that interesting for most people.")
But maybe if you had a clear memory of it, and we could show it to someone who could work things out, it might be enough?
no subject
She said something about precision mattering, that that's where most of the errors are. It's something about measuring the angle from where you are to a given point in the heavens (more than one is much better). And you need to know the time, as precisely as you can. You can use any number of stars, or planets, or even the sun or moon, but obviously, you need to know what you're looking at.
Or - I gather it's something where you can sort out the missing piece if you have two of the others: time, angle, and location. Because now I think about it, she was very proud of working out a piece for the punishment for that duelling club, to limit the area affected, and she had the time and the location there, and worked out the angles.
Only, blast. I do remember her saying it's a fairly uncommon skill. There's a few people in the Floo Network office who use it regularly. She does, an astronomer friend of hers, from her year. Maybe a dozen others, in all the Protectorate. (Well, as she said, it's "tedious, fiddly, and not that interesting for most people.")
But maybe if you had a clear memory of it, and we could show it to someone who could work things out, it might be enough?