Widefield in SHO & Foraxx Mix
A closer look at the Soap Bubble in SHO Palette
The Soap Bubble Nebula, Ju 1 (also known as PN G075.5+01.7) is a planetary nebula in the constellation Cygnus, near the Crescent Nebula (NGC 6888). The nebula derives its name from its symmetrical spherical shape which resembles a soap bubble.
It was discovered by amateur astronomer Dave Jurasevich using an Astro-Physics 160 mm refractor telescope with which he imaged the nebula on June 19, 2007 and on July 6, 2008. The nebula was later independently noted and reported to the International Astronomical Union by Keith B. Quattrocchi and Mel Helm who imaged PN G75.5+1.7 on July 17, 2008. The nebula measures 260″ in angular diameter with a central star that has a J band magnitude of 19.45.
Due to the faintness of the "soap bubble" and the fact that it is embedded in a diffuse nebula, it was difficult to discover.
Imaging telescope: Takahashi FSQ130ED
Imaging camera: ASI 2600MM
Mount: JTW Trident P75
Guiding telescope: Takahashi FS60CB
Guiding camera: ASI 678 MM (BIN 2)
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight.
Filters: Astrodon SII, Ha & OIII (3nm).
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW 3, RB Focus Gaius S2, RB Focus Excalibur.
Dates: 13th - 20th May 2026
Frames:
Astrodon SII 37 x 600"
Astrodon Ha 41 x 600"
Astrodon OIII 48 x 600"
Total integration = 21 Hours.
Center (RA, Dec): (304.421, 37.642)
Center (RA, hms): 20h 17m 41.070s
Center (Dec, dms): +37° 38' 32.149"
Size: 1.99 x 1.33 deg
Radius: 1.197 deg
Pixel scale: 1.19 arcsec/pixel
"Orientation": Up is 89.2 degrees E of N
It was discovered by amateur astronomer Dave Jurasevich using an Astro-Physics 160 mm refractor telescope with which he imaged the nebula on June 19, 2007 and on July 6, 2008. The nebula was later independently noted and reported to the International Astronomical Union by Keith B. Quattrocchi and Mel Helm who imaged PN G75.5+1.7 on July 17, 2008. The nebula measures 260″ in angular diameter with a central star that has a J band magnitude of 19.45.
Due to the faintness of the "soap bubble" and the fact that it is embedded in a diffuse nebula, it was difficult to discover.
Imaging telescope: Takahashi FSQ130ED
Imaging camera: ASI 2600MM
Mount: JTW Trident P75
Guiding telescope: Takahashi FS60CB
Guiding camera: ASI 678 MM (BIN 2)
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight.
Filters: Astrodon SII, Ha & OIII (3nm).
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW 3, RB Focus Gaius S2, RB Focus Excalibur.
Dates: 13th - 20th May 2026
Frames:
Astrodon SII 37 x 600"
Astrodon Ha 41 x 600"
Astrodon OIII 48 x 600"
Total integration = 21 Hours.
Center (RA, Dec): (304.421, 37.642)
Center (RA, hms): 20h 17m 41.070s
Center (Dec, dms): +37° 38' 32.149"
Size: 1.99 x 1.33 deg
Radius: 1.197 deg
Pixel scale: 1.19 arcsec/pixel
"Orientation": Up is 89.2 degrees E of N
Sky Map and Finding Chart
SII, Ha & OIII in the image
Annotated Image
