Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  IC 1805  ·  IC1795  ·  IC1805  ·  NGC 896  ·  NGC896  ·  Sh2-190
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Ha shots on IC1805 and Melotte 15, 


            Pascal Gouraud
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Ha shots on IC1805 and Melotte 15

Imaging telescopes or lenses: Celestron RASA 8" f/2 Astrograph

Imaging cameras: ZWO ASI 1600MM-Cool Pro ASI 1600MM pro

Mounts: SkyWatcher HEQ 5 Pro SynScan

Guiding telescopes or lenses: Orion 50mm guide scope

Guiding cameras: ZWO ASI 178MM

Software: PHD2 Guiding  ·  SGP  ·  Pleiades Astrophoto PixInsight 1.8.5 Ripley  ·  Stellarium, Stellarium Scope

Filters: Baader F/2 Ha, OII, SII

Dates:Oct. 10, 2019

Frames: 50x120"

Integration: 1.7 hours

Avg. Moon age: 11.72 days

Avg. Moon phase: 89.88%

Astrometry.net job: 3019755

RA center: 2h 32' 49"

DEC center: +61° 28' 15"

Pixel scale: 1.967 arcsec/pixel

Orientation: 53.077 degrees

Field radius: 1.572 degrees

Resolution: 4605x3452

Data source: Traveller


Heart Nebula and Fish Head Nebula taken with my new wide field setup : RASA 8" and ASI1600MM
Taken in a dark sky location in France with a very good sky despite gibbous moon. Ha shots were quite good, but OIII and SII due tu the gibbous moon were quite bad (OIII) and quite poor (SII)
Nevertheless globally the RASA8 with 100 minutes per channel has a very good efficiency.
Details reworked on Ha shots (100 minutes - 50 shots) and crop added on melotte 15 and fish head nebula.


Sky plot

Sky plot


Ha shots on IC1805 and Melotte 15, 


            Pascal Gouraud

In these public groups

Celestron RASA