www.astrocafe.hk

Horse Head Again!!!
Scope: FSQ 106

Mount: Skywatcher HEQ5

Filter: CLS Clip Filter & V4
Camera: Canon 450D (Modified)

Guiding System: LVI II
Guiding Scope: 350mm guide scope (A modified 9x50 finder scope)

Total: 7 hr 12min

Dark frame, Flat frame & Bias frame

Place: Dongguan ChaShau

Very Good. But it seems that there is a bright light gradient from top (perhaps light polluted.).

funoooo，7小時追蹤很輕鬆吧

看來你當地的天空是樽頸了，還是回來用130拍吧。

另外注意，用了V4便不用再加CLS了。

拍攝天區是否有什麼本地光源影響? 左上角一片亮起來的?