Nebula Sh2-37
17-Aug-2017
Sh2-37 is a hydrogen emission nebula with two small blue reflection nebulae, embedded in a dusty background against the core of the Milky Way.
Image:
- 60x 600s Luminance bin1x1
- 35x 300s Red bin2x2
- 20x 300s Green bin2x2
- 24x 300s Blue bin2x2
Total exposure 16 hours 35 minutes.
Hardware:
- Skywatcher Black Diamond ED80
- SkyWatcher EQ8 Pro Mount
- QSI 683-ws8 Camera @ -15°C
- Astronomik Typ2 LRGB filters
- Starlight Xpress Lodestar X2 Autoguider
- Innovations Foresight On Axis Guider
- Starlight Instruments Focus Boss II
Location:
- Orange zone in Brisbane, Australia. (Bortle 7)
- Imaged over 5 nights, 50% moon.
Software:
- Planning & camera alignment with Aladin 9
- Captured with AstroArt 6
- Guiding with PHD2 + PHD_Dither
- FocusLock live focusing
- CCDInspector: Image analysis & rejection
- CCDStack 2+: Calibrate, align, stack, deconvolution, remove gradients, combine RGB.
- Photoshop CC: Shadows/highlights, combine L+RGB, curves, adjust colour balance, saturation, crop.