Hemisphere:  Southern  ·  Contains:  Lagoon Nebula  ·  M 8  ·  NGC 6523  ·  NGC 6526  ·  NGC 6530  ·  The star 7Sgr  ·  The star 9Sgr
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m8 lagoon nebula in HSS, 


            John Mart
m8 lagoon nebula in HSS
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m8 lagoon nebula in HSS

Imaging telescopes or lenses: Explorer Scientific ED102

Imaging cameras: ZWO ASI 1600MM-PRO

Mounts: SkyWatcher EQ6-R Pro

Guiding telescopes or lenses: ZWO 60/280 Guiderscope

Guiding cameras: ZWO 290MM mini

Focal reducers: Stellarvue SFFR102-2 field flattener and 0.8x reducer

Software: PinInsight 1.8  ·  SGP  ·  PHD 2

Filters: Optolong SII 1.25" 6.5nm  ·  Optolong Ha 1.25" 7nm

Accessory: ZWO EAF Electronic Auto Focuser  ·  Pegasus Astro Pocket Power Box  ·  ZWO EFW 1.25 8 Position  ·  Startech Industrial USB3 Hub  ·  QHY PoleMaster PoleMaster

Dates:Aug. 11, 2020

Optolong Ha 1.25" 7nm: 21x180" (gain: 139.00) -15C bin 1x1
Optolong SII 1.25" 6.5nm: 20x180" (gain: 139.00) -15C bin 1x1

Integration: 2.0 hours

Darks: ~30

Flats: ~30

Flat darks: ~30

Avg. Moon age: 21.97 days

Avg. Moon phase: 51.92%

Bortle Dark-Sky Scale: 5.00

Temperature: 19.00

Basic astrometry details

Astrometry.net job: 4134104

RA center: 18h 4' 13"

DEC center: -24° 14' 31"

Pixel scale: 1.369 arcsec/pixel

Orientation: 93.126 degrees

Field radius: 0.971 degrees

Resolution: 3882x3311

Locations: Home observatory, Atlanta, Georgia, United States

Data source: Backyard


I had a little data left from 2020 to process. I only had a couple hours on the lagoon nebula in Ha and Sii. I went with an HSS mapping to RGB. Plenty of room for improvement next time, but nice to close out this attempt.



John Mart
License: None (All rights reserved)

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m8 lagoon nebula in HSS, 


            John Mart