NGC 1909, The Witch Head Nebula
(click on image for larger size):
Image acquisition and processing details for narrowband version:
| Telescope: | Takahashi Epsilon 180, f/2.8 |
| Mount: | Astro-Physics AP1200 |
| Camera: | SBIG ST-10XME cooled to -25C, internal guiding. |
| Filters, Exposure Times: | AstroDon TruBalance Generation 2 Red=240 min (48x5 min), Green=275 min (55x5 min), and Blue=270 min (54x5 min). Additional data was obtained but discarded. |
| Dates: | 10/20/08 - 10/25/08. |
| Moon Phase: | various. |
| Location: | Xanadu Observatory. |
| Software: | CCDCommander, MaximDL, FocusMax, TheSky, CCDInspector, CCDStack, Adobe Photoshop CS3 |
| Notes: | CCDStack's remove gradient feature was helpful in removing some of the color gradients. |