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Contains:  IC 1805, IC1805, Sh2-190
Getting plate-solving status, please wait...

Technical card

Imaging telescopes or lenses:Takahashi TSA 102

Imaging cameras:Atik ONE 6.0

Mounts:Skywatcher AZ EQ6 GT

Guiding telescopes or lenses:Takahashi TSA 102

Guiding cameras:Atik GP

Focal reducers:Takahashi TOA-RD

Software:Pleiades Astrophoto PixInsight 1.8 RipleyPHD Guiding 2Atik Artemis

Filters:Astronomik SII 6nmAstronomik Ha 6nmAstronomik OIII 6nm

Accessory:Atik OAG

Dates:Aug. 22, 2018Aug. 23, 2018

Astronomik Ha 6nm: 20x900" -10C bin 1x1
Astronomik OIII 6nm: 6x600" -10C bin 2x2
Astronomik SII 6nm: 6x600" -10C bin 2x2

Integration: 7.0 hours

Darks: ~64

Flats: ~16

Bias: ~101

Avg. Moon age: 11.63 days

Avg. Moon phase: 89.08%

Bortle Dark-Sky Scale: 4.00 job: 2990253

RA center: 2h 35' 4"

DEC center: +61° 30' 41"

Pixel scale: 1.528 arcsec/pixel

Orientation: 3.566 degrees

Field radius: 0.747 degrees

Resolution: 2749x2199

Locations: Fouras, Fouras, Charente-Maritime, France

Data source: Backyard


My previous image of the Heart nebula was made in 2014 with a DSLR.

Not enough field of view to include the whole nebula with my TSA102 and my AtikOne6 CCD, so I tried this time to have a nice framing and a good resolution on one of the most interesting area, the Melotte15 cluster.

Only 7h of SHO (5h for the sole Ha channel - 900s subs / 1h for OIII / 1h for SII).




Jean-Baptiste Auroux



Description: Slight correction of colors.


Description: Saturation increased.


Description: General improvement of the image (colors, noise...).

Sky plot

Sky plot


IC 1805 - Heart Nebula (SHO), 


            Jean-Baptiste Auroux