水星 ALPO-Japan Latest

Mercury Image 2021/09/19(UT)

Niall MacNeill
N.MacNeill

---

I imaged the nearly 50% illuminated Mercury a couple of evenings ago. 
The edge diffraction effect made it difficult to see anything near the limb, but closer to the terminator there are some features, 
which have a rough correlation with those from the WinJUPOS Ephemerides at the same timestamp. 
Perhaps the most obvious is a bright crater near the terminator, south of the equator. 
I wasn't able to identify this despite a search of some Mercury topographical maps.




Coment by Andy Casely
The crater is Kuiper. I e swapped out the WinJupos map for the low incidence angle equirectangular mosaic 
from Messenger as the WinJupos map has an uneven mix regions of low & high incidence angle 
the high angle areas don稚 show up the albedo (bright craters etc) very well, this one is easier to navigate.

[Niall MacNeill : Wattle Flat,NSW,Australia]

ALPO-Japan Latest Mercury Section	2021/09/22
	2021/09/17