SH2-134 /SH2-135 in Cepheus in SHO (Summer 2022)

            SH2-134 is a massive emission nebula located in the southern part of the constellation Cepheus about 2900 light years from earth. It is roughly centered around the fifth magnitude, blue supergiant star λ Cephei.
SH2-135 is a smaller HII emission nebula/region also located in southern Cepheus with a prominent and expanding ionization front. Current estimations of distance from earth are about 10,100 light years.
Aside from SH2-134 & SH2-135, the field contains objects from Lynds' Catalogue of Bright Nebulae
- LBN 485
- LBN 486
- LBN 488 
- LBN 489
- LBN 490
- LBN 491
- LBN 492 
- LBN 492 

Also in the field is NGC 7281, NGC7261 & NGC7235 which are open clusters, respectively about 5300 and 9200 light years distant.

Details:
- Acquisition Date: 08/14/2022 to 09/03/2022
- Location: Western Massachusetts
- Imaging Camera: QHY600PH-M -10°C - Mode 1(High Gain) Offset:15 Gain:56
- Telescope: Takahashi FSQ106 EDXIII @ f/5 (530mm focal length -106mm aperture)
- Mount: Astro-Physics AP1100 w/GTO4
- Guide scope: Celestron Off Axis Guider
- Guide Camera: ASI174m mini
- Software: Adobe Photoshop CS5, Sequence Generator Pro, PixInsight 1.8 Ripley, Aries Astro Pixel Processor 

Filters used:
- Chroma Hydrogen Alpha (Ha) 3nm 50mm
- Chroma Oxygen III (OIII) 3nm 50mm
- Astrodon Sulfur II (SII) 3nm 50mm

Exposure Times:
Chroma Hydrogen Alpha:28 x 600 sec (280 min)
Chroma Oxygen III: 21 x 600 sec (210 min)
Astrodon Sulfur II: 19 x 600 sec (190 min)

Total Exposure: 680min. (11.3 hrs.)

Sky Quality:
-Magnitude: 19.71
-Bortle Class 5
-1.41 mcd/m^2 Brightness
-1234.6 ucd/m^2 Artificial Brightness


   

Taken on: September 3, 2022

Tags:

Astrophotography

SH2-134

Cepheus « less

Sets appears in: • HST • Narrowband more » • Nebulae « less

Groups appears in: • Astrophotography - Astronomy - Astrophysics • Astronomy more » • Deepsky • Night Sky, The • Deep Space Astrophotography • Astronomical Images • Anti Gravity • astrometry • ASTROPHOTO • Night_shoots • astrophotoinsight • Stars... • Astronomers Talk • BBC Sky at Night and Stargazing Live • Sentinel of the Kosmos - Kaleidoscope to Astrophotography ★ • Starry Night Astrophotography • Astrophotography (Pixinsight Processing) • Astrofotógrafos del Mundo / World´s Astrophotographers • night photography. • Universe Today • Backyard Astrophotography • Stars n' Stuff • Lonely Speck • Awesome Photography! • Sky (Les CielS) • Amateur Astro-Photography • Astrophotography - The Solar System and Beyond • The Camera Club [El Club De La Cámara] • PhotographingSpace.com • ARTISTIC EXPRESSION - ASTROPHOTOGRAPHY - By Invitation Only • The best photographs from around the world. • Astro Imaging « less

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