Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5422  ·  NGC 5457  ·  NGC 5473  ·  NGC 5474  ·  NGC 5477
M101 (crop), Lee, Chi-Hsiang
M101 (crop)
Powered byPixInsight

M101 (crop)

M101 (crop), Lee, Chi-Hsiang
M101 (crop)
Powered byPixInsight

M101 (crop)

Equipment

Loading...

Acquisition details

Loading...

Description

M101 中央格放版

攝於冷到靠北邊走的鳶峰@2017.04.01 深夜 ~ 04.02 凌晨

5208 x 3476 pixel 取正中央的 2280 x 1521 pixel

高橋 FSQ-85ED x 0.73 減焦 + Canon 650D 改

ISO 800 / 300s x 30 / Dark x 10 / 平場 x 10

Vixen SXP + APM 60240 + Watec 902H2 Ultimate + AU 導星

DSS 3.3.4 + Camera Raw + Photoshop CC

各種修圖作弊法全用上了,請指教。

Comments

Sky plot

Sky plot

Histogram

M101 (crop), Lee, Chi-Hsiang