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Contains:  IC 1795, IC 1805, NGC 1027, NGC 896
Getting plate-solving status, please wait...
H-Alpha - IC 1805 - Heart Nebula, 


            Min Xie
H-Alpha - IC 1805 - Heart Nebula
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H-Alpha - IC 1805 - Heart Nebula

Technical card

Imaging telescopes or lenses: William Optics Gran Turismo 81 APO (2018)

Imaging cameras: ASI1600mm Pro

Mounts: Celestron Advanced VX

Guiding telescopes or lenses: QHYCCD QHYOAG-S

Guiding cameras: QHYCCD QHY5II-M

Focal reducers: William Optics Flat6A-II (x0.80)

Software: ProDigital Software Astronomy Tools Actions Set  ·  Adobe Photoshop CC 2016  ·  Astro Pixel Processor  ·  Sequence Generator Pro  ·  PixInsight 1.8 Ripley  ·  Adobe Lightroom 2017

Filters: Astrodon 3nm Ha 31mm

Accessory: PrimaLuceLab Sesto Senso Robotic Focusing Motor  ·  ZWO EFW  ·  Celestron SkySync GPS  ·  Kingdel NC860 (i7-8550U)

Dates:Oct. 30, 2018

Frames:Astrodon 3nm Ha 31mm: 240x180" (gain: 139.00) -20C bin 1x1

Integration: 12.0 hours

Darks: ~50

Flats: ~50

Bias: ~90

Avg. Moon age: 20.86 days

Avg. Moon phase: 63.55%

Bortle Dark-Sky Scale: 9.00

Mean SQM: 18.05

Temperature: 3.00

Basic astrometry details job: 3248597

RA center: 2h 31' 55"

DEC center: +61° 28' 1"

Pixel scale: 3.946 arcsec/pixel

Orientation: 227.492 degrees

Field radius: 1.666 degrees

Resolution: 1536x2048

Locations: Backyard, Coppell, Texas, United States

Data source: Backyard


Attempting a panorama shot of the Heart Nebula. The panorama is made of the lower part and the upper part. Each with 6 hours of H-Alpha data. The outcome is not bad at all from the data collected in my inner city backyard.

Actually, the process is not as painful as I thought. Well, it's just one channel. The Astro Pixel Processor's panorama function worked flawlessly. Now I started to think how to do multi-channel stitching with Astro Pixel Processor and make it part of the tone mapping process.



- Calibration/Normalization/Integration, Astro Pixel Processor
- Deconvolution, PixInsight
- MultiscaleLinearTransformation, PixInsight
- ScreenTransferFunction/HistogramTransformation, PixInsight
- Final touch-ups in Photoshop CC and Lightroom.



Min Xie
License: Attribution-NonCommercial Creative Commons

Sky plot

Sky plot


H-Alpha - IC 1805 - Heart Nebula, 


            Min Xie