Iris and Ghost Nebulae (Mark Killion)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD200099 · HD200775 · Iris Nebula · LBN 475 · LBN 487 · LBN 495 · LDN 1168 · LDN 1170 · LDN 1171 · LDN 1172 · LDN 1173 · LDN 1174 · LDN 1177 · NGC 7023 · Sh2-136 · T Cep · VdB141

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Iris and Ghost Nebulae

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Iris and Ghost Nebulae

On 10/22/22 I imaged the Iris nebula and the Ghost nebula in the same field of view of my Takahashi FSQ-130ED. I used a Canon Ra imaging camera. The entire field of view of the image was 3.2 x 2.1 degrees. I took 13 light frames at ISO 800 for 5 minutes each before the clouds rolled in. I took several dark frames, and these did help with the noise and also, I had a BIAS library of frames I used. I did take flat frames but made a huge blunder and used an ISO of 1600 and so these were worthless. Anyway, I stacked the lights, darks and bias frames in Deep Sky Stacker and processed the stacked image in Photoshop. I used a 50mm guide scope with a 200mm focal length and a ZWO guide camera. The main scope has a native focal length of 650mm. I used PHD2 for guiding and APT software for the imaging camera tasks and framing acquisition (plate solving). No filters were used during this session. The imaging session was performed from my back porch in Illinois.

Takahashi Refractors

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Status	Advanced success
Started	...
Astrometry.net job	6474710
PixInsight job	VK05XTDPTNVJ9Y7JJ8FY5CQWPWE8R89N
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h07m17s.83
RA (top/left)	20h51m30s.50
RA (top/right)	21h21m33s.75
RA (bottom/right)	21h24m21s.15
RA (bottom/left)	20h51m38s.50

Dec (center)	+68°09′46″.9
Dec (top/left)	+67°14′42″.6
Dec (top/right)	+67°02′46″.9
Dec (bottom/right)	+68°58′46″.2
Dec (bottom/left)	+69°11′45″.3

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Iris and Ghost Nebulae

Iris and Ghost Nebulae

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Iris and Ghost Nebulae

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