The Ghost of Cassiopeia HOO (Chris White- Overcast Observatory)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 26 Cas · 26 ups01 Cas · 27 Cas) · 27 gam Cas · 28 Cas) · 28 ups02 Cas · HD236578 · HD236592 · HD236605 · HD236612 · HD236625 · HD236630 · HD236632 · HD236633 · HD236639 · HD4817 · HD4854 · HD4931 · HD4978 · HD5015 · HD5031 · HD5071 · HD5149 · HD5211 · HD5233 · HD5235 · HD5342 · HD5408 · HD5409 · HD5410 · And 47 more.

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The Ghost of Cassiopeia HOO

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The Ghost of Cassiopeia HOO

I've attempted to image this target a few times over the years, and my gear and processing has always been defeated by Gamma Cas.

Now that I've gotten the e160ed mostly dialed in I decided to put some time on it during the recent full moon phase. Captured over the two nights before the full moon itself I was dismayed to find that I get halos with my Astrodon filters. I never had this problem with my other scopes, but the e160ed is just so demanding, it will expose any weaknesses in the system. I'll need to replace these filters with something that is halo free, as the processing gymnastics to remove halos are not something I wish to repeat if I decide to image another bright star target.

This has been presented in HOO. C&C Welcome.

Original
B
Final
C

B

Description: Reprocessed primarily to mitigate a mottling effect.

Uploaded: ...

C

Description: Full Reprocess. Fixed the drab colors of the dimmer emission nebula. Corrected the BG gradient. Fixed the area around Gamma Cas.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	6286399
PixInsight job	68E6L5F0FMO8NMTK0VGLRM701T83B5UX
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h01m37s.12
RA (top/left)	00h50m18s.53
RA (top/right)	00h52m26s.20
RA (bottom/right)	01h11m45s.25
RA (bottom/left)	01h11m57s.29

Dec (center)	+60°07′27″.1
Dec (top/left)	+61°57′14″.8
Dec (top/right)	+58°10′04″.6
Dec (bottom/right)	+58°14′44″.5
Dec (bottom/left)	+62°02′07″.7

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The Ghost of Cassiopeia HOO

The Ghost of Cassiopeia HOO

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The Ghost of Cassiopeia HOO

The Ghost of Cassiopeia HOO

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C

Sky plot

Histogram

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