This object is sometime known as Messier (??) (A)
This object is sometimes known as NGC ???? (B)
Charles Messier first noted the object on March ?, 1769 (C)
How many lightyears across is it? (D)
The cache can be found at...........
N 51° 09. 5 (A - 29)
E 000° (B-1926). (C+5) 0 (D-15)
GPS may be a bit iffy in the trees but the clue will help.
Enjoy!