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Elephant's Trunk Nebula in Cepheus - Two Panel Mosaic, 


            Steve Milne
Elephant's Trunk Nebula in Cepheus - Two Panel Mosaic
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Elephant's Trunk Nebula in Cepheus - Two Panel Mosaic

Technical card

Imaging telescopes or lenses: TEC-140

Imaging cameras: QSI 690 WSG-8

Mounts: 10 Micron GM2000 HPS II UP

Guiding telescopes or lenses: TEC-140

Guiding cameras: Starlight Xpress Lodestar X2

Focal reducers: TEC Field Flattener

Software: Sequence Generator Pro  ·  Adobe Photoshop 6 CS  ·  Open PHD PHD 2.5  ·  Pixinsight 1.8

Filters: Astrodon SII 3nm  ·  Astrodon OIII 3nm  ·  Ha 3nm

Dates:Aug. 16, 2020

Ha 3nm: 48x1200" bin 1x1
Astrodon OIII 3nm: 48x1200" bin 1x1
Astrodon SII 3nm: 48x1200" bin 1x1

Integration: 48.0 hours

Avg. Moon age: 26.73 days

Avg. Moon phase: 8.59%

Basic astrometry details

Astrometry.net job: 3768708

RA center: 21h 34' 37"

DEC center: +57° 34' 19"

Pixel scale: 0.743 arcsec/pixel

Orientation: 269.720 degrees

Field radius: 0.597 degrees

Resolution: 3285x4767

Locations: E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura


The Elephant’s Trunk nebula (van den Bergh 142) is part of the emission nebula IC 1396. It is approximately 3,000 light years from Earth in the constellation of Cepheus. The Elephant Trunk is a site of star formation, containing several stars that may be only 100,000 years old.

This is a two-panel mosaic photographed between 25 July and 16 August 2020 from a rig in Spain that is privately owned and operated by Barry Wilson and me.

Capture details are as follows:

Telescope: TEC 140
Camera: QSI 690
Filters: Astrodon
Mount: 10 Micron GM2000HPS

Ha: 48 x 1200s
OIII: 48 x 1200s
SII: 48 x 1200s

A total of 48 hours exposure.

Processing: Steve Milne
Data: Steve Milne & Barry Wilson



Steve Milne
License: None (All rights reserved)

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Sky plot


Elephant's Trunk Nebula in Cepheus - Two Panel Mosaic, 


            Steve Milne