NGC 1491 RGB + Narrowband
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| Other Versions | 1600 x 1600 Narrowband Color (2.0 MB) |
| Photographer | Wes Stauffer |
| Optics | A&M RC 400 IM-T |
| Mount | Paramount ME |
| Guiding | SBIG ST 402 through MMOAG with ProTrack engaged |
| Camera | Apogee U16M at -20C |
| Filters | Astrodon 5nm SII, Ha and 3nm OIII, Gen II RGB |
| Dates/Times | November 9 - November 13, 2009 |
| Location | Tiburon, CA |
| Exposure Details | 810 min Ha, 405 SII, 405 OIII - 90 min each RGB |
| Acquisition | CCDSoft 5 and The Sky 6 Controlled via CCDAutopilot 4 |
| Processing | CCDStack, Photoshop CS4 |
| Notes | This color image is made up of over 31 hours of narrowband data mapped
to RGB colors. Ha is mapped to Red, OIII is mapped to
both Green and Blue and the SII data is mapped
to Reddish-Yellow as an accent
color that accents the bright central area in the nebula. RGB data is used for
the star color. |
