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Hemisphere:  Northern  ·  Contains:  B369, RW Cep, Sh2-132
Getting plate-solving status, please wait...
The Lion Nebula, 


            Jonathan Piques
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The Lion Nebula

Imaging telescopes or lenses: Meade 70mm Astrograph Quad APO refractor

Imaging cameras: ZWO ASI 1600MM Cooled Pro

Mounts: Skywatcher EQ6-R PRO

Guiding telescopes or lenses: Meade 70mm Astrograph Quad APO refractor

Guiding cameras: ZWO ASI290 Mini

Software: PIXINSIGHT 1.8  ·  Sequence Generator Pro

Filters: Ha 5nm  ·  ZWO O-III 7nm 36mm

Accessory: ZWO OAG  ·  Kendrick Astro Instruments Dew Heaters  ·  Pegasus Astro Dual Motor Focus Premium  ·  ZWO Filterwheel EFW 7x 36mm

Dates:Sept. 30, 2018Oct. 1, 2018

Ha 5nm: 105x300" (gain: 139.00) -20C bin 1x1
ZWO O-III 7nm 36mm: 172x300" (gain: 139.00) -20C bin 1x1

Integration: 23.1 hours

Darks: ~100

Flats: ~50

Bias: ~300

Avg. Moon age: 20.65 days

Avg. Moon phase: 65.55%

Bortle Dark-Sky Scale: 6.00 job: 3679408

RA center: 22h 18' 9"

DEC center: +55° 54' 25"

Pixel scale: 2.266 arcsec/pixel

Orientation: -68.631 degrees

Field radius: 0.975 degrees

Resolution: 2256x2119

Locations: Home, Richmond, VA, United States

Data source: Backyard


This one was tricky to process. I tried making a synthetic green channel for the first time, and it worked out *ok*, but it took me forever to get the colors to an acceptable place, and even now, I may still tweak it some more, but I thought this was a nice pastel palette as a change from the traditional Hubble palette I so often use. There's quite a bit more detail to be had in the core and in the surrounding Oiii envelope, and perhaps more integration time will bring it out.



Jonathan Piques

Sky plot

Sky plot


The Lion Nebula, 


            Jonathan Piques