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My hobby: ordering random pairs of things over and over on Amazon until they appear in each other's "frequently bought together" sections. (Drawing: screenshot of HAND-HELD LABEL MAKER + BOBCAT)
Currently at Havelock: -1.7. Excellent 22-degree halo (which I didn't know to call it (though I have known that term before because I've looked this stuff up before, and likely I will fail to know it again in the future) until I looked it up last night--I was like, "sun dog thing except all the way around") around the moon last night ... along with something I've never seen before (which was the first thing I noticed when I looked up--my first thought was, how is that contrail curving so neatly?), which looked like a piece of a second halo of the same diameter (but seemed possibly thicker and brighter than the 22-degree halo, though it was hard to tell because, being further away from the moon, there was more contrast between it and its background) and which, if completed (I'd say the visible part of it looked like maybe 1/5 of a circle), apparently would've had the moon on its edge. After a whole lot of puzzling through a whole lot of pictures and diagrams, I'm guessing, with fairly low confidence, that it was a piece of tangential arc. I didn't manage to get a picture of it before it disappeared, alas.
ETA: My impression of the moon halos:
... and if you look at this and say "that makes no sense!" then you see why it's taken a lot of puzzling to come up with a low-confidence guess as to what I was seeing.
ETA Feb. 5, 2018: spaceweather.com has a picture up today of what looks very likely to be what my mystery arc was a piece of--a paraselenic circle.
Currently at Havelock: -1.7. Excellent 22-degree halo (which I didn't know to call it (though I have known that term before because I've looked this stuff up before, and likely I will fail to know it again in the future) until I looked it up last night--I was like, "sun dog thing except all the way around") around the moon last night ... along with something I've never seen before (which was the first thing I noticed when I looked up--my first thought was, how is that contrail curving so neatly?), which looked like a piece of a second halo of the same diameter (but seemed possibly thicker and brighter than the 22-degree halo, though it was hard to tell because, being further away from the moon, there was more contrast between it and its background) and which, if completed (I'd say the visible part of it looked like maybe 1/5 of a circle), apparently would've had the moon on its edge. After a whole lot of puzzling through a whole lot of pictures and diagrams, I'm guessing, with fairly low confidence, that it was a piece of tangential arc. I didn't manage to get a picture of it before it disappeared, alas.
ETA: My impression of the moon halos:
... and if you look at this and say "that makes no sense!" then you see why it's taken a lot of puzzling to come up with a low-confidence guess as to what I was seeing.
ETA Feb. 5, 2018: spaceweather.com has a picture up today of what looks very likely to be what my mystery arc was a piece of--a paraselenic circle.
