Sh2-199 – Soul Nebula (Natural Palette)

Sh2-199

Soul Nebula (Natural Palette)

Queen of Aethopia

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Stars are forming in the Soul of the Queen of Aethopia. More specifically, a large star forming region called the Soul Nebula (IC 1898) can be found in the direction of the constellation Cassiopeia, who Greek mythology credits as the vain wife of a King who long ago ruled lands surrounding the upper Nile river. The Soul Nebula houses several open clusters of stars, a large radio source known as W5, and huge evacuated bubbles formed by the winds of young massive stars. Located about 6,500 light years away, the Soul Nebula spans about 100 light years and is usually imaged next to its celestial neighbor the Heart Nebula (IC 1805). The featured image is a composite of three exposures in different colors: red as emitted by hydrogen gas, yellow as emitted by sulfur, and blue as emitted by oxygen.

The Soul Nebula in Cassiopeia

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Technical card

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ObjectSh2-199
Imaging telescopeCelestron Rowe-Ackermann Schmidt Astrograph 8″
Imaging cameraZWO ASI 1600MM PRO
Mount iOptron CEM60
GuidingGuidescope 240mm, ZWO ASI 120MM
FilterBaader f/2 Highspeed H-Alpha, Baader f/2 Highspeed OIII, Baader f/2 Highspeed SII (each 2″), Baader R, G, B (2″)
AccessoriesStarizona Filter Slider,  Celestron Focus Motor for SCT
Integration28.6 hours, H-Alpha: 212×100″/188×120″, OIII: 341×90″, SII: 200×120″, Red/Green/Blue each: 50×30″
Dates of recordingDec. 3, 2019,  Dec. 5, 2019,  Jan. 20, 2020,  Jan. 21, 2020,  Feb. 7, 2020,  April 19, 2020
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