Leading to Sh2-115
A crop from above image: the colour was adjusted some.
Sharpless 115 stands just north and west of Deneb, the alpha star of the constellation Cygnus, the Swan. Noted in the 1959 catalog by astronomer Stewart Sharpless (as Sh2-115) the emission nebula lies along the edge of one of the outer Milky Way's giant molecular clouds, about 7,500 light-years away. Hot stars in star cluster Berkeley 90 power the nebular glow. The cluster stars are likely only 100 million years old or so and are still embedded in Sharpless 115.
The small blueish circular object, is Abell 71. The nebula is also catalogued as PK 085+04.1, PN G084.9+04.4 and SH 2-116. Initially catalogued as a planetary nebula, the object is now recognized as a small patch of HII emission.
Imaging telescope: Takahashi FSQ130ED
Imaging camera: ASI 2600MM
Mount: JTW Trident P75
Guiding telescope: Takahashi FS60CB
Guiding camera: QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight.
Filters: Astrodon Ha (3nm), OIII (3nm) and Astrodon SII (3nm).
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW 3, RB Focus Gaius, RB Focus Excalibur.
Dates: 03rd Jul. - 30th Jul. 2024
Frames: (Total)
Astrodon Ha 30 x 600"
Astrodon OIII 30 x 600"
Astrodon SII 3 0 x 600"
Total integration = 15 Hours
Center (RA, Dec): (308.936, 47.372)
Center (RA, hms): 20h 35m 44.589s
Center (Dec, dms): +47° 22' 19.293"
Size: 1.35 x 1.72 deg
Radius: 1.095 deg
Pixel scale: 1.19 arcsec/pixel
"Orientation": Up is 179.1 degrees E of N
The small blueish circular object, is Abell 71. The nebula is also catalogued as PK 085+04.1, PN G084.9+04.4 and SH 2-116. Initially catalogued as a planetary nebula, the object is now recognized as a small patch of HII emission.
Imaging telescope: Takahashi FSQ130ED
Imaging camera: ASI 2600MM
Mount: JTW Trident P75
Guiding telescope: Takahashi FS60CB
Guiding camera: QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight.
Filters: Astrodon Ha (3nm), OIII (3nm) and Astrodon SII (3nm).
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW 3, RB Focus Gaius, RB Focus Excalibur.
Dates: 03rd Jul. - 30th Jul. 2024
Frames: (Total)
Astrodon Ha 30 x 600"
Astrodon OIII 30 x 600"
Astrodon SII 3 0 x 600"
Total integration = 15 Hours
Center (RA, Dec): (308.936, 47.372)
Center (RA, hms): 20h 35m 44.589s
Center (Dec, dms): +47° 22' 19.293"
Size: 1.35 x 1.72 deg
Radius: 1.095 deg
Pixel scale: 1.19 arcsec/pixel
"Orientation": Up is 179.1 degrees E of N
Sky Mao & Finding Chart
SII Ha & OIII in the image: (Orientation 90° from final image)
Annotated Image:
