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SVX140T - HDW 3

May 28, 2025 - Tony Hallas & Frank Dibbell
SVX140T - HDW 3 - Tony Hallas & Frank Dibbell
SVX140T - HDW 3 - Tony Hallas & Frank Dibbell
This surreal shot of Hartl-Dengel-Weinberger 3 (HDW 3) was taken by Frank Dibbell with his SVX140T and processed by Tony Hallas. This faint planetary nebula is located approximately 2,500 light-years away in the constellation Perseus. This nebula’s central star is a white dwarf, meaning it’s the core of a star that has exhausted nuclear fuel. The star’s stellar wind is blowing away surrounding material, forming this object as a result.

According to Tony: Multiple attempts were made to process this... some of this detail is just above the noise floor. The final version is posted. Taken with a Stellarvue SVX 140mm and a ZWO 2600MM. RGB = 12 X 600 seconds each, H-a + OIII = 33 X 1200 seconds each. Taken from Bortle 1 New Mexico skies. Imaged using NINA, processed with CCDStack, Photoshop, Registar, and various PS plug-ins.

Other Designations: HDW 3, PK 149-09.1, PN G149.4-09.2

*For more details and an in depth look at this image, visit Tony’s AstroBin.

Telescope: Stellarvue SVX140T
Camera: ZWO ASI2600MM Pro
Mount: Astro-Physics 900GTO
Software:
  • Adobe Photoshop
  • Auriga Imaging Registar
  • CCDWare CCDStack
  • Topaz Labs Topaz AI
References:

Planetary nebula HDW3. (2023, October 23). WorldWide Telescope Forum. https://wwt-forum.org/t/planetary-nebula-hdw3/588
Peter Goodhew’s images of deep space. (n.d.). IMAGINGDEEPSPACE.COM. https://www.imagingdeepspace.com/
Hartl-Dengel-Weinberger 3 (HDW 3) - AstroBin. (n.d.). AstroBin. https://app.astrobin.com/u/tonyhallas?i=skroxz#gallery