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Heart of Gold | Melotte 15 | by MessierX
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Heart of Gold | Melotte 15

The Heart Nebula with Melotte 15

 

Centred in the image is the star cluster Melotte 15*. The image was a challenged to compose and a lot of time was spent trying to adjust the compositional balance. The image has been cropped. I have moved away from the common SHO colour scheme and have tried to get a more natural look. As with all narrow band imaging the word natural is extremely subjective.

 

Technical

 

Imaging telescopes or lenses: William Optics GT71 II APO

Imaging cameras: ZWO ASI 294MM Pro (cooled) ASI294MM PRO

 

Mounts: Skywatcher HEQ5 PRO (belt modification)

 

Guiding telescopes or lenses: William Optics 50/200 GuideScope

 

Guiding cameras: ZWO ASI120MM-S ASI 120MM-S

 

Focal reducers: William Optics Adjustable Flat6A III 0.8x Reducer / Flattener

 

Software: Asi Air for IOS · PixInsight 1.8.7 Ripley PixInsight

 

Filters: Baader Ha, OIII, SII 1.25 inch

 

Accessory: ZWO ASI Air · Pegasus Astro Pocket Powerbox

 

Dates:Oct. 22, 2021

 

Frames:Baader Ha, OIII, SII 1.25 inch: 247x180" (12h 21') (gain: 120.00) -10C bin 2x2

 

Integration: 12h 21'

 

Darks: 41

 

Flats: 41

 

Flat darks: 41

 

Avg. Moon age: 16.47 days

 

Avg. Moon phase: 96.74%

 

Bortle Dark-Sky Scale: 8.00

 

Temperature: 16.00

 

RA center: 02h33m03s.469

 

DEC center: +61°24′40″.45

 

Pixel scale: 1.422 arcsec/pixel

 

Orientation: -151.410 degrees

 

Field radius: 1.097 degrees

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Uploaded on October 24, 2021