NEW DISCOVERY: Strottner-Drechsler 99 ✴ 196h exposure ( Marcel Drechsler )

Image of the day 10/31/2022

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NEW DISCOVERY: Strottner-Drechsler 99 ✴ 196h exposure

Link: https://www.imagingdeepspace.com/stdr-99.html

Imaging Telescopes Or Lenses: APM LZOS Apo 152/1200 CNC LW II · Celestron EdgeHD 14"
Imaging Cameras: QSI 6120wsg-8 · ZWO ASI6200MM Pro
Mounts: 10Micron GM2000 HPS II · iOptron CEM120
Filters: Astrodon Gen1 E-Series Tru-Balance Blue · Astrodon Gen1 E-Series Tru-Balance Green · Astrodon Gen1 E-Series Tru-Balance Red · Astrodon H-alpha 5nm 1.25" · Astrodon OIII 3nm 1.25" · Chroma H-alpha 3nm Bandpass 2" · Chroma OIII 3nm Bandpass 2"
Software: Adobe Photoshop · Pleiades Astrophoto PixInsight · Topaz Labs DeNoise AI

Dates:: Oct. 20, 2022
Frames:: Astrodon Gen1 E-Series Tru-Balance Blue: 39×300″(3h 15′)
Astrodon Gen1 E-Series Tru-Balance Green: 37×300″(3h 5′)
Astrodon Gen1 E-Series Tru-Balance Red: 41×300″(3h 25′)
Astrodon H-alpha 5nm 1.25": 271×900″(67h 45′) bin 1×1
Astrodon OIII 3nm 1.25": 217×900″(54h 15′) bin 1×1
Chroma OIII 3nm Bandpass 2": 774×300″(64h 30′) bin 1×1
Integration:: 196h 15′
Avg. Moon age:: 24.65 days
Avg. Moon phase:: 24.61%

Basic astrometry details

Astrometry.net job: 6445452

RA center: 23h24m01s.2

DEC center: +65°26′49″

Pixel scale: 0.530 arcsec/pixel

Orientation: 359.360 degrees

Field radius: 0.376 degrees

Resolution: 4250x2838

File size: 5.2 MB

Data source: Own remote observatory

Remote source: e-EyE Extremadura

Faint - fainter - Strottner-Drechsler 99

Strottner-Drechsler 99 is a probable planetary nebula in the constellation Cepheus.
StDr 99 was discovered by Marcel Drechsler and Xavier Strottner in 2020 and photographed for the first time by Peter Goodhew and Sven Eklund in 2022.
The PN candidate is so faint that almost 200 hours of exposure time were needed to make the entire shell visible.
The OIII component of StDr 99 is so faint that it is close to the detection limit.

This makes StDr 99 one of the most difficult objects ever photographed by our team.

Acquiring data: Peter Goodhew and Sven Eklund
Image editing: Marcel Drechsler

Strottner-Drechsler 99 / StDr 99 / PNG 114.0+04.1
Coordinates: 23:24:11.06 +65:30:52.40
Constellation: Cepheus
Diameter: 17'

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Status	Basic success
Started	...
Astrometry.net job	6445452
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Image of the day 10/31/2022

NEW DISCOVERY: Strottner-Drechsler 99 ✴ 196h exposure

Image of the day 10/31/2022

NEW DISCOVERY: Strottner-Drechsler 99 ✴ 196h exposure

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Image of the day 10/31/2022

NEW DISCOVERY: Strottner-Drechsler 99 ✴ 196h exposure

Image of the day 10/31/2022

NEW DISCOVERY: Strottner-Drechsler 99 ✴ 196h exposure

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