by Craig & Tammy Temple
NGC3521 is a magnitude 8.9 spiral galaxy in Leo. This image is 2.5 hours total exposure time taken on March 19, 2009. The temperature was 55° F.
- Celestron C8 SCT with Celestron f/6.3 FR/FF
- Atlas EQ-G w/EQMOD, guided
- Canon 350D (self-modified) w/Astronomik EOS Clip IR filter
- 100 x 90s @ ISO 1600
- Dark/Sky flat/Bias calibration
- Captured using ImagesPlus 3.75 Camera Control
- Calibrated/Registered/Stacked/Initial processing in ImagesPlus 3.75
- Post processed in Photoshop CS4/Gradient XTerminator/Noise Ninja/Carboni's Tools.