The Rosette Nebula is a large, circular emission nebula in the constellation Monoceros. It surrounds a cluster of hot, young stars known as the Rosette Cluster (NGC 2244). The brightest parts of the nebula have their own NGC catalog numbers.

（quote from SkySafariPro5）

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HST Palette

Date and Place 2016-Oct-14 Yachiyo, Chiba, Japan
2016-Oct-15 Yachiyo, Chiba, Japan
2016-Oct-24 Isumi, Chiba, Japan
Scope Takahashi Epsilon180ED + BetaSGR Focuser
Mount Skywatcher EQ8
Camera Atik383L+
-15/-20[deg-c]
Auto guiding D=50[mm], FL=200[mm] finder guide scope + Superstar + GPUSB
Filter Astrodon S2/Ha/O3 5[nm] Filter 36[mm] Unmounted
Exposure S2 : 10x 600[s], Ha : 24x 600[s], O3 : 10x 600[s]
Total : 440[min]
Software Astroart6 with SHS Version 4.7
PHD Guiding 2.6.2
Pixinsight 1.8
Photoshop CC 2015

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