Below: a crop from the above image: adjusted curves for a different end colour (Click on image for a closer look)
Cygnus is a northern constellation on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. Cygnus is one of the most recognizable constellations of the northern summer and autumn, and it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.
IC 1311 is a Open Cluster in the Cygnus constellation. IC 1311 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. In this image it is just visible at left of centre along the top edge.
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: 14th - 29th Jun. 2024
Frames: (Total)
Astrodon Ha 38 x 600"
Astrodon OIII 44 x 600"
Astrodon SII 3 8 x 600"
Total integration = 20 Hours
Center (RA, Dec): (303.544, 40.840)
Center (RA, hms): 20h 14m 10.558s
Center (Dec, dms): +40° 50' 25.574"
Size: 2.06 x 1.34 deg
Radius: 1.231 deg
Pixel scale: 1.19 arcsec/pixel
"Orientation": Up is 88.6 degrees E of N
IC 1311 is a Open Cluster in the Cygnus constellation. IC 1311 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. In this image it is just visible at left of centre along the top edge.
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: 14th - 29th Jun. 2024
Frames: (Total)
Astrodon Ha 38 x 600"
Astrodon OIII 44 x 600"
Astrodon SII 3 8 x 600"
Total integration = 20 Hours
Center (RA, Dec): (303.544, 40.840)
Center (RA, hms): 20h 14m 10.558s
Center (Dec, dms): +40° 50' 25.574"
Size: 2.06 x 1.34 deg
Radius: 1.231 deg
Pixel scale: 1.19 arcsec/pixel
"Orientation": Up is 88.6 degrees E of N
Sky Map & Finding Chart
SII, Ha & OIII in the image:
Annotated Image: