Sh2-190 (Heart Nebula) and Sh2-199 (Soul Nebula)

Sh2-190, the Heart Nebula, is an emission nebula in the constellation Cassiopeia. The nebula is often named after the open cluster IC 1805, which lies near its centre.

Sh2-199, the Soul Nebula, is an emission nebula in the constellation Cassiopeia. The object is more commonly called by the cluster designation IC 1848 in its centre.

Over the years I imaged these objects several times from home, abroad and remote.

In 2019 I received data from the Deep Sky West (DSW) Observatory for the Soul Nebula. DSW is located in New Mexico and offers several fully equipped systems.

Data calibration and registration and the final processing was done with PixInsight. First I created an image in the Hubble palette:

The [SII] data was assigned to the red channel, the Hα data to the green channel and the [OIII] data to the blue channel.

The result was as follows:

Then I created also a bicolor image:

For the nebula I assigned the Hα data to the red channel and the [OIII] data to the green and blue channel. For the stars I assigned the Hα data to the red channel, 50% of Hα and 50% of [OIII] to the green channel and [OIII] to the blue channel.

The result was as follows:

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The images were taken with the following equipment:

• Date: 2019
• Location: Rowe, New Mexico
• Telescope: Takahashi FSQ-106
• Focal length [mm]: 530
• Focal ratio: 5
• Mount: Paramount MyT
• Camera: QSI 683-WSG-8
• Filter: Hα:[OIII]:[SII]
• Exposure time [min]: 900:540:960
• Resolution: 2.08″/px

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I also imaged these two nebulae in 2019 during my holiday in Banon, France with my mobile equipment.

Data calibration and registration and the final processing was done with PixInsight. The result was as follows:

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The images were taken with the following equipment:

• Date: 2019
• Location: Banon, France
• Telescope: Canon 200mm lens
• Focal length [mm]: 195
• Focal ratio: 4
• Mount: Skywatcher NEQ6
• Camera: Canon 6D
• Filter: OSC
• Exposure time [min]: 177
• Resolution: 6.92″/px

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Five years ago, in 2014, I also imaged these two nebulae during my holiday in Banon, France with my mobile equipment.

Data calibration and registration and the final processing was done with PixInsight. The result was as follows:

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The images were taken with the following equipment:

• Date: 2014
• Location: Banon, France
• Telescope: Canon 200mm lens
• Focal length [mm]: 200
• Focal ratio: 4
• Mount: Skywatcher NEQ6
• Camera: Moravian FW8300 and Canon 500Da
• Filter: OSC:Hα:[OIII]
• Exposure time [min]: 234:200:200
• Resolution: 5.57″/px

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The first attempt with the Heart Nebula I started in 2009 from my own backyard.

Data calibration and registration was done with DeepSkyStacker, the final processing was done with PixInsight. The result was as follows:

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The images were taken with the following equipment:

• Date: 2009
• Location: Krefeld, Germany
• Telescope: Pentacon 200mm lens
• Focal length [mm]: 146
• Focal ratio: 4
• Mount: Skywatcher NEQ6
• Camera: Canon 300Da
• Filter: OSC
• Exposure time [min]: 187
• Resolution: 10.44″/px

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