The distance between Namsan Tower and the western observatory of Sky Park is 9 km, and the altitude difference is approximately 240 meters.
The day when the exact angle is visible from the observatory is sunrise on Monday.
I couldn't go to Sky Park early in the morning on Monday, so I tried a day early.
If you move approximately 10 to 20 meters to the left, the position will be corrected.
But when I actually went and tried it, the trees in Sky Park were too tall and lush except for the observatory.
In reality, position adjustment is not possible.
So the sunrise protractor was somewhat of a failure.
The sunset protractor is from an Itaewon mosque that I only saw two weeks ago.
I went back and forth from the entrance to Hannam The Hill to adjust the angle.
And during the day, I saw birds in the reed forest. These look more believable when seen as a moving picture.