SH2-54
Below: A later version - crop
Sh2-54 is an extended bright nebula in the constellation of Serpens.
In its core there are many protostars and many infrared sources; some of these sources, like IRAS 18151−1208, are most probably very young high-mass stars. The older star population in this region has an average age of 4-5 million years, and its components are grouped in the open cluster NGC 6604.
Sh2-54 belongs to an extended nebulosity that includes also the Eagle Nebula and the Omega Nebula. The young high-mass stars of this region constitute the Serpens OB1 and Serpens OB2 OB association.
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 RGB & Astrodon Ha (3nm), SII (3nm) and OIII (3nm)
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW 3, RB Focus Gaius, RB Focus Excalibur.
Dates: 27th. - 29th May. 2024 mixed with data from 2020
Frames: (Total)
Astrodon Red 10×120″(20′)
Astrodon Green 10×120″(20′)
Astrodon Blue 10×120″(20′)
Astrodon Ha 56 x 600" (9h 20m)
Astrodon SII 47 x 600" (7h 50m)
Astrodon OIII 58 x 600" (9h 40m)
Total integration = 27 Hour 50 minutes
Center (RA, Dec): (274.632, -12.072)
Center (RA, hms): 18h 18m 31.616s
Center (Dec, dms): -12° 04' 19.650"
Size: 1.16 x 1.13 deg
Radius: 0.810 deg
Pixel scale: 1.2 arcsec/pixel
Up is 256.7 degrees E of N
In its core there are many protostars and many infrared sources; some of these sources, like IRAS 18151−1208, are most probably very young high-mass stars. The older star population in this region has an average age of 4-5 million years, and its components are grouped in the open cluster NGC 6604.
Sh2-54 belongs to an extended nebulosity that includes also the Eagle Nebula and the Omega Nebula. The young high-mass stars of this region constitute the Serpens OB1 and Serpens OB2 OB association.
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 RGB & Astrodon Ha (3nm), SII (3nm) and OIII (3nm)
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW 3, RB Focus Gaius, RB Focus Excalibur.
Dates: 27th. - 29th May. 2024 mixed with data from 2020
Frames: (Total)
Astrodon Red 10×120″(20′)
Astrodon Green 10×120″(20′)
Astrodon Blue 10×120″(20′)
Astrodon Ha 56 x 600" (9h 20m)
Astrodon SII 47 x 600" (7h 50m)
Astrodon OIII 58 x 600" (9h 40m)
Total integration = 27 Hour 50 minutes
Center (RA, Dec): (274.632, -12.072)
Center (RA, hms): 18h 18m 31.616s
Center (Dec, dms): -12° 04' 19.650"
Size: 1.16 x 1.13 deg
Radius: 0.810 deg
Pixel scale: 1.2 arcsec/pixel
Up is 256.7 degrees E of N
Sky Map & Finding Chart
SII, Ha & OIII in the image: (Orientation is 90° different to final image)
Annotated Image;
