Rosette Nebula

(also known as Caldwell 49)

NGC 2237 – Part of the nebulous region (Also used to denote whole nebula)

NGC 2238 – Part of the nebulous region

NGC 2239 – Part of the nebulous region (Discovered by John Herschel)

NGC 2244 – The open cluster within the nebula (Discovered by John Flamsteed in 1690)

NGC 2246 – Part of the nebulous region

- Telescope : 160N (f/4.4)

- Corrector : Vixen Coma Corrector PH(~0.95x)

- Camera : SBIG ST-8300M

- Mount : Rainbow Robotics RST-400

- Guide Telescope : Takahashi FS-60c

- Guide Camera : ZWO ASI 174mm

- Filter : Astronomik RGBHa

- Exposure : Ha : 600s x 22 shot ~ 13,200s(3.6 hrs)

- Date/Time : 23. Nov. 2019 / 01:37 (KST)~

- Location : Gosan, Wanju, South Korea

- SQM-L : 20.20

코쿤을 찍고 나서 무엇을 찍을까 고민하다가, 장미를 촬영해 봤습니다. 

필터 세팅이 뭔가 이상했는지, 온통 Ha만 찍혔군요... ㅠㅠ;