Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  IC 1805  ·  IC1795  ·  IC1805  ·  IC1824  ·  NGC 1027  ·  NGC 896  ·  NGC1027  ·  NGC896  ·  Sh2-190
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Heart Nebula (IC 1805, Sh2-190), 



    
        

            Luca Marinelli
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Heart Nebula (IC 1805, Sh2-190)

Getting plate-solving status, please wait...
Heart Nebula (IC 1805, Sh2-190), 



    
        

            Luca Marinelli
Powered byPixInsight

Heart Nebula (IC 1805, Sh2-190)

Imaging telescopes or lenses: Takahashi FSQ 106 EDX4

Imaging cameras: Finger Lakes Instrumentation ML16200

Mounts: Astro-Physics Mach-1 GTO CP4

Guiding telescopes or lenses: Takahashi FSQ 106 EDX4

Guiding cameras: ZWO ASI 290 MM MINI

Software: Starnet ++  ·  Astro-Physics Command Center (APCC) Pro Software  ·  Photoshop CC  ·  PIXINSIGHT 1.8  ·  Seqence Generator Pro  ·  PHD2 Guiding PHD2 v2.6.5

Filters: Chroma SII 3nm  ·  Chroma OIII 3nm  ·  Chroma Ha 3nm

Accessory: Optec Sagitta OAG  ·  Finger Lakes Instrumentation CFW2-7  ·  Pegasus Astro Ultimate Power Box  ·  Optec FocusLynx QuickSync FSQ Motor


Dates:Nov. 3, 2019Nov. 4, 2019Nov. 6, 2019Nov. 8, 2019Nov. 9, 2019Nov. 16, 2019Nov. 17, 2019

Frames:
Chroma Ha 3nm: 28x1200" -30C bin 1x1
Chroma Ha 3nm: 2x300" -30C bin 1x1
Chroma Ha 3nm: 2x600" -30C bin 1x1
Chroma OIII 3nm: 30x1200" -30C bin 1x1
Chroma OIII 3nm: 2x900" -30C bin 1x1
Chroma SII 3nm: 26x1200" -30C bin 1x1
Chroma SII 3nm: 1x900" -30C bin 1x1

Integration: 29.2 hours

Darks: ~100

Flats: ~20

Bias: ~100

Avg. Moon age: 12.06 days

Avg. Moon phase: 70.86%

Bortle Dark-Sky Scale: 5.00


Astrometry.net job: 3077771

RA center: 2h 33' 37"

DEC center: +61° 20' 47"

Pixel scale: 2.333 arcsec/pixel

Orientation: -0.313 degrees

Field radius: 1.786 degrees


Resolution: 4344x3396

Locations: Home Observatory, Schenectady, New York, United States

Data source: Backyard

Description

The Heart Nebula (IC 1805, Sh2-190) is an emission nebula in the constellation Cassiopeia, located roughly 7,500 light-years away. It was discovered by William Herschel in 1787. The brightest corner of the Heart nebula is NGC 896, also know as the Fish Head Nebula, on the Western side of the Heart.

A surprise to me was finding the tiny planetary nebula WeBo1 (PN G135.6+01.0), which can be seen as the small blue structure on the left side of the image (straight left from Melotte 15). WeBo1 was discovered by Bond, Pollacco, and Webbink in 2003 originally on DSS images and it has a thin-ring morphology. Its shape is elliptical with major and minor axes of about 64"x22".

The image was created from 29 hours of narrowband Ha, OIII, SII data in the Hubble color palette.

Comments

Revisions

    Heart Nebula (IC 1805, Sh2-190), 



    
        

            Luca Marinelli
    Original
  • Final
    Heart Nebula (IC 1805, Sh2-190), 



    
        

            Luca Marinelli
    B

B

Description: Slight curve adjustment to open up midtones.

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Heart Nebula (IC 1805, Sh2-190), 



    
        

            Luca Marinelli