Planetary Nebula NGC 4361
Published 21 June 2021

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Full image field here: Un-cropped full resolution

About this object

NGC 4361 is a planetary nebula in the southern constellation Corvus which shines at estimates of magnitude 10.4-10.9 and is thought to be around 4 thousand light years distant. The central star, which has shed much of its gas was once thought to be a sun like star. This planetary nebula is a bit unique among low mass star planetary nebula as it has a bi-polar jet which are typically observed from low mass stars. The image above was taken through Red, Green and Blue filters along with a 5nm wide HII and OIII filter. The red in the central part is from hydrogen emission and the blue/green color from an abundance of OIII emission. NGC 4361 also goes by the designations: ARO26, PK 294+43.1, and PN G294.1+43.6

The image combines 11hrs and 35min of data. The image above is a cropped field of view. To see the full res image click on the image. To see the full, uncropped version click the link above. The image was taken using 1x1 binning at a
resolution of .64 arcsec/pixel but using a 1/2 frame region of interest. Here you can find an annotated image showing a few of the faint galaxies around NGC 4361. Processing was done in PixInsight with a few final tweaks in Photoshop.

Image Details

  • Optics : Stellarvue SVX 152T refractor @f8 1200mm FL
  • Mount: Paramount MYT
  • Camera: ZWO ASI6200
  • Filters: Chroma 50mm RGB 5nm OIII, Astrodon 5nm Ha
  • Exposure (min): LRGB 80:45:65:240: 260 11hrs 35min , 1x1 binning
  • Automation Control: The Sky X, Voyager, PrimaluceLab Eagle 4
  • Guiding: StarlightXpress Lodestar X2
  • Processing Software: PixInsight, PS CC
  • Location: Stark Bayou Observatory, Ocean Springs, MS
  • Sky: Typical SQM 19.6-20.1, Bortle 5, Suburban
  • Date: 21 April - 31 May 2021
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