I photographed PSNJ04002180+22544029 to 2014.12.25 12:32 UT.
There was not the moonlight and, in the good sky of the transparency,
regarded an image as the inside.
With PSNJ04002180+22544029 discovered in 12/24, it is 19.2 at the time of
In the photometry, it was 20.5, but thinks that there is an error because it
is considerably dark.
It is the impression that is darker than the 20th prize.
Thank you very much for your help.