Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
DWB 34 and LDN 881 in HaGB, 


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DWB 34 and LDN 881 in HaGB

Technical card

Imaging cameras: SBIG STF-8300M

Mounts: Paramount MyT

Guiding cameras: QHY5L-II Mono

Focal reducers: CCDT67

Software: PixInsight  ·  Voyager

Filters: Baader Ha 36mm 7nm  ·  Baader Blue 36mm  ·  Baader Green 36mm

Accessory: Dew-Not DN09 Dew Heater  ·  SBIG OAG-8300  ·  Moonlite CSL 2.5" Threaded Focuser  ·  Kendrick Standard Dual Channel Dew Controller

Dates:July 2, 2020July 14, 2020July 18, 2020

Baader Blue 36mm: 21x300" -5C bin 1x1
Baader Green 36mm: 21x300" -5C bin 1x1
Baader Ha 36mm 7nm: 35x600" -10C bin 1x1

Integration: 9.3 hours

Avg. Moon age: 20.89 days

Avg. Moon phase: 44.16%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 3698127

RA center: 20h 19' 32"

DEC center: +39° 38' 28"

Pixel scale: 0.931 arcsec/pixel

Orientation: 0.182 degrees

Field radius: 0.535 degrees

Resolution: 3300x2496

Data source: Backyard


This is a closeup of a portion of the Sadr nebulae complex. Specifically, DWB 34 is the emission nebula in the lower third of the image. LDN 881 is the dark nebula to the upper right. As far as I can tell, this very interesting area isn't imaged in closeup very often.

The processing is somewhat unusual in that the Ha was used for the Red channel, while G and B were collected normally.


Sky plot

Sky plot


DWB 34 and LDN 881 in HaGB,