Sh2-134 Widefield
Sh2-134 & 135
Located between the popular „Wizard Nebula“ and „Elephant's Trunk Nebula“, this area is often overlooked and rarely photographed, though it has to offer a lot of faint, but spectacular objects like the emission nebulae Sh2-134 and Sh2-135, the open star cluster NGC 7261 and a bunch of LDNs and LBNs.

In order to bring out as many details as possible, I decided to use the false color technique, that got famous by the pictures of the Hubble Space Telescopes. The "real" colors are assigned to other colors: sulfur (Sii) = red, hydrogen (h) = green, oxygen (o) = blue. This results in an increase in contrast, and more details become visible.


Image Details
Date
Sep 30, Nov 11, Dec 15 & 17, 2022
Jan 18, 2023
LOCATion
Hannover (Germany)
Sky Quality
Bortle 5
Telescope
Celestron RASA 8 (203/400 f/2)
Mount
Skywatcher EQ6-R Pro
Main Cameras
TS 2600 MP
Gain 100, Offset 50, -10°
ZWO ASI 2600 MC Pro
Gain 100, Offset 18, -10°
Focuser
Celestron Motorfocus
Processing
Astropixelprocessor, Photoshop, Pixinsight
Filter
Baader H-Alpha Highspeed 3.5nm
Baader O-III Highspeed 4nm
Baader S-II Highspeed 4nm
IDAS NBZ Dualband Filter
Exposure
Ha & OIII (IDAS NBZ): 80 x 120'' (2h 40')
Ha: 70 × 120″ (2h 20′)
OIII: 140 × 120″ (4h 40′)
SII: 100 × 120″ (3h 20′)
RGB (stars): 60 x 5'' (5')

Total: 13h 5‘
Guiding
ZWO ASI 120MM, PHD2
Calibration
Flats, Darks, Darkflats
Software
N.I.N.A., EQMod
Other
Artesky Filter Holder
  
  
Gallery
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Nebula
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Comet
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Galaxy
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Cluster
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Cluster
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Galaxy
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Moon
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Cluster
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Moon
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Cluster
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Nebula