Brief Description   A unique-shaped diffused nebula around boundary on Canis Major and Monoceros. The peculiar appearance has given the nickname, our eyes cannot detect it at all.

Photography Condition
Date & Time... Dec 29 2016, from 25:06 to 26:54 JST(+0900)
   Composed 8shots with 3min. exposed, mosaic of 2 flames
Optical... TAMRON SP 300mmF2.8, stop: F4.0
   with IDAS LPS-P2 Light-pollution suppression filter
   Auto-guided with TAKAHASHI JP Equatorial
Digital Camera... Nikon D810A
   (ISO3200, recorded in 14bit CCD-RAW)
Location... Ooizumi, Hokuto city, Yamanashi pref.