SH2-135
Sh2-135 is a visible emission nebula in the constellation Cepheus.
It is located in the southern part of the constellation, north of the line connecting the stars ζ Cephei and δ Cephei.
It is an H II region connected to a dark nebula of interstellar dust, which has a distinct and expanding ionization front. The star responsible for the ionization of the gas has the spectral class O9.5V; the distance estimates give a value of about 6200 light years. Around this nebula, IRAS has identified numerous sources of infrared radiation, indicating the presence of more recent star formation processes.
Imaging telescope: Takahashi FSQ130ED
Imaging cameras: FLI ML16200
Mounts: Takahashi EM 400 Temma 2M
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: Tak QE 0.73x
Software: PHD 2, Astro Pixel Processer, PixInsight , Sequence Generator Pro SGP
Filters: Astrodon Ha + Astrodon RGB
Accessories: ATIK EFW3
Original Resolution: 4200 x 3500
Dates: Aug 6 - Aug 28, 2021
Frames:
Astrodon Ha: 36 x 600"
Astrodon RGB: 3 x 20 x 180"
Integration: 9 Hours.
Center (RA, Dec): (334.293, 59.097)
Center (RA, hms): 22h 17m 10.435s
Center (Dec, dms): +59° 05' 50.470"
Size: 1.8 x 2.52 deg
Radius: 1.550 deg
Pixel scale: 2.59 arcsec/pixel
Orientation: Up is 55.5 degrees E of N
It is located in the southern part of the constellation, north of the line connecting the stars ζ Cephei and δ Cephei.
It is an H II region connected to a dark nebula of interstellar dust, which has a distinct and expanding ionization front. The star responsible for the ionization of the gas has the spectral class O9.5V; the distance estimates give a value of about 6200 light years. Around this nebula, IRAS has identified numerous sources of infrared radiation, indicating the presence of more recent star formation processes.
Imaging telescope: Takahashi FSQ130ED
Imaging cameras: FLI ML16200
Mounts: Takahashi EM 400 Temma 2M
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: Tak QE 0.73x
Software: PHD 2, Astro Pixel Processer, PixInsight , Sequence Generator Pro SGP
Filters: Astrodon Ha + Astrodon RGB
Accessories: ATIK EFW3
Original Resolution: 4200 x 3500
Dates: Aug 6 - Aug 28, 2021
Frames:
Astrodon Ha: 36 x 600"
Astrodon RGB: 3 x 20 x 180"
Integration: 9 Hours.
Center (RA, Dec): (334.293, 59.097)
Center (RA, hms): 22h 17m 10.435s
Center (Dec, dms): +59° 05' 50.470"
Size: 1.8 x 2.52 deg
Radius: 1.550 deg
Pixel scale: 2.59 arcsec/pixel
Orientation: Up is 55.5 degrees E of N
The full field of view that the above image was cropped from:
Sky Map
