NGC 7380
NGC 7380 is a young open cluster of stars in the northern circumpolar constellation of Cepheus, discovered by Caroline Herschel in 1787. The surrounding emission nebulosity is known colloquially as the Wizard Nebula, which spans an angle of 25′. German-born astronomer William Herschel included his sister's discovery in his catalogue, and labelled it H VIII.77. The nebula is known as S 142 in the 1959 Sharpless catalogue (Sh2-142). It is extremely difficult to observe visually, usually requiring very dark skies and an O-III filter. The NGC 7380 complex is located at a distance of approximately 8.5 k light-years from the Sun, in the Perseus Arm of the Milky Way.
The cluster spans ~20 light-years (6 pc) with an elongated shape and an extended tail. Age estimates range from 4 to 11.9 million years. At the centre of the cluster lies DH Cephei, a close, double-lined spectroscopic binary system consisting of two massive O-type stars. This pair are the primary ionizing source for the surrounding H II region, and are driving out the surrounding gas and dust while triggering star formation in the neighbouring region. Of the variable stars that have been identified in the cluster, 14 have been identified as pre-main sequence stars while 17 are main sequence stars that are primarily B-type variables.
Imaging telescope: Takahashi FSQ106ED
Imaging camera: ASI 2600MM
Mount: Takahashi EM 400 Temma 2M
Guiding telescope: Takahashi FS60CB
Guiding camera: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Capture Software: Sequence Generator Pro, PHD 2
Processing Software: Astro Pixel Processor, PixInsight, Topaz DeNoise, Photoshop
Filters (50mm): Astrodon Ha (3nm), Astrodon SII (3nm) & Astrodon OIII (3nm)
Accessories: ATIK EFW3, SeleTEK2 controlling Robofocus Focuser.
Original Image : 3000 x 2000
This Image (Max) : 3000 x 2000
Dates: 10th - 15th Aug 2022
Frames:
Astrodon Ha 24 x 10'
Astrodon SII 18 x 10'
Astrodon OIII 18 x 10'
Total integration = 10 Hours
Center (RA, Dec): (341.401, 58.048)
Center (RA, hms): 22h 45m 36.190s
Center (Dec, dms): +58° 02' 52.918"
Size: 73.1 x 48.7 arcmin
Radius: 0.732 deg
Pixel scale: 1.46 arcsec/pixel
Orientation: Up is 0.0948 degrees E of N
The cluster spans ~20 light-years (6 pc) with an elongated shape and an extended tail. Age estimates range from 4 to 11.9 million years. At the centre of the cluster lies DH Cephei, a close, double-lined spectroscopic binary system consisting of two massive O-type stars. This pair are the primary ionizing source for the surrounding H II region, and are driving out the surrounding gas and dust while triggering star formation in the neighbouring region. Of the variable stars that have been identified in the cluster, 14 have been identified as pre-main sequence stars while 17 are main sequence stars that are primarily B-type variables.
Imaging telescope: Takahashi FSQ106ED
Imaging camera: ASI 2600MM
Mount: Takahashi EM 400 Temma 2M
Guiding telescope: Takahashi FS60CB
Guiding camera: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Capture Software: Sequence Generator Pro, PHD 2
Processing Software: Astro Pixel Processor, PixInsight, Topaz DeNoise, Photoshop
Filters (50mm): Astrodon Ha (3nm), Astrodon SII (3nm) & Astrodon OIII (3nm)
Accessories: ATIK EFW3, SeleTEK2 controlling Robofocus Focuser.
Original Image : 3000 x 2000
This Image (Max) : 3000 x 2000
Dates: 10th - 15th Aug 2022
Frames:
Astrodon Ha 24 x 10'
Astrodon SII 18 x 10'
Astrodon OIII 18 x 10'
Total integration = 10 Hours
Center (RA, Dec): (341.401, 58.048)
Center (RA, hms): 22h 45m 36.190s
Center (Dec, dms): +58° 02' 52.918"
Size: 73.1 x 48.7 arcmin
Radius: 0.732 deg
Pixel scale: 1.46 arcsec/pixel
Orientation: Up is 0.0948 degrees E of N
Sky Map & Finder Chart
SII, Ha & OIII in the image (These are 90° clockwise relative to the final image)
Annotated Image
