Waid Observatory

Object: NGC 7009

Date: Sept.8-9, 2023  -   Location: DSOC, Fort Davis, TX
Telescope: 16 inch RC  -  Camera: FLI 16803  -  Mount: Paramount ME II
Exposure: Ha and OIII 18x5 min. each filter - RGB for Stars 30x1 min. each filter

Image Credit: Preston Starr and Donald Waid

Click on the image to view at higher resolution.

  NGC 7009

NGC 7009 - The Saturn Nebula
Discovered by William Herschel in 1782[2]

The Saturn Nebula, NGC 7009, is a very unusual planetary nebula containing many morphological and kinematic sub-systems[1] such as jet-like streams and multiple shells[1].  NGC 7009 derives its common name from its shape that resembles the planet Saturn with its rings seen edge on[2].  The nebula is small with a diameter of 36 seconds of arc[2].  It, however, has an extended halo that reaches to approximately 100 seconds of arc[2].  The distance to the nebula is not known with any degree of accuracy[1}.  The range of estimated distances is from 2,400 to 3,900 light years[2].  The Sky Catalogue 2000.0 places its distance at 2,900 light years and SEDS places it at 2,400 light years[2].

The image above was assembled as a bi-color image using narrowband filters.  Ha filtered data was mapped to Red and OIII data mapped to Green and Blue.  Stars were overlaid with data from a separate RGB filtered image.  This method produces a near true color image.

1Wikipedia: https://en.wikipedia.org/wiki/Saturn_Nebula
2SEDS: http://www.messier.seds.org/xtra/ngc/n7009.html <

Copyright Donald P. Waid