Object Information                                            Imaging Details

Hewett1 is a large but very faint planetary nebula in Sextans. It was reported in the early 2000's from SDSS data, but very few images exist. I found the nebula in a list of advanced OIII targets on the CloudyNights forum, and decided to see what I could obtain.

I took DSLR color images, but saw no hint of nebulosity. However, the Atik picked up faint nebulosity using 10-minute OIII filtered subs. A few faint blotches were also acquired using the Atik and an Ha filter. The OIII image was considerably brighter.

The nebula was imaged over four nights at the 2016 Texas Star Party. Transparency each night was good to very good.

The map on the upper right shows the position of the nebula to scale. Clicking the preview image (above) will bring up a larger, higher resolution image. The high-res version also contains an inset showing a negative image of the nebula and starfield.

Telescope:

Canon 200mm f/2.8 lens

Canon - 4-minute subs @ iso 1600; Atik - 10-minute (-10°) subs.