California Nebula(NGC 1499)

- Telescope : William Optics RedCat 51 (f/4.9)

- Corrector : none

- Camera : Canon 6D (LPF removed)

- Mount : Takahashi P2

- Guide Telescope : none

- Guide Camera : none

- Filter : STC Astro Duo narrowband filter

- Exposure : 600s x 14 shot ~ 8400s(2.3 hrs), ISO1600

- Date/Time : 30. Sep. 2019 / 00:50 (MST)~

- Location : Mt. Lemmon Sky Center, Tucson, AZ, USA

- SQM-L : 21.20