Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  NGC 896
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IC 1795 - The Fish Head Nebula in SHO., Cosgrove's Cosmos (Patrick Cosgrove)
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IC 1795 - The Fish Head Nebula in SHO.

Getting plate-solving status, please wait...
IC 1795 - The Fish Head Nebula in SHO., Cosgrove's Cosmos (Patrick Cosgrove)
Powered byPixInsight

IC 1795 - The Fish Head Nebula in SHO.

Equipment

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Acquisition details

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Description

IC 1795, also know as the Fish Head Nebula, is area of new star formation with glowing gas and dust, in the constellation of Cassiopeia. It is actually a portion of the larger Heart Nebula (IC 1805) complex that is located about 6000 light years from earth. Since my scope cannot fit the entire Heart nebula into its field of view, I opted to frame the fish head portion of the nebula.

This was shot was taken over two nights (November 12th & 14th) with a Narrowband setup, and is the result of 5 hours of total integration. I would have liked to get another couple of nights data on this target, but I feel pretty fortunate to have gotten two nights of data during the month of November in Upstate NY! The second evening was cut short as a bank of clouds moved in around midnight.

The image was processed into the SHO Hubble Palette.

Here are the details for this image….

24 x 300 seconds, bin 1x1 @ -15C, unity gain, ZWO Gen II Ha Filter

22 x 300 seconds, bin 1x1 @ -15C, unity gain, ZWO Gen II O3 Filter

16 x 300 seconds, bin 1x1 @ -15C,unity gain, ZWO Gen II S2 Filter

50 Bias exposures

25 Dark exposures

45 Ha Flats

45 O3 Flats

45 S2 Flats

Capture Hardware:

Scope: Astrophysics 130mm Starfire F/8.35 APO refractor

Guide Scope: Televue 76mm Doublet

Camera: ZWO ASI1600mm-pro with ZWO Filter wheel with ZWO filter set

Guide Camera: ZWO ASI290Mini

Focus Motor: Pegasus Astro Focus Cube 2

Camera Rotator: Pegasus Astro Falcon

Mount: Ioptron CEM60

Polar Alignment: Polemaster camera

Capture Software: PHD2 Guider, Sequence Generator Pro controller

Image Processing: Pixinsight, Photoshop - assisted by Coffee, extensive processing indecision and second guessing, editor regret and much swearing…..

Comments

Revisions

  • IC 1795 - The Fish Head Nebula in SHO., Cosgrove's Cosmos (Patrick Cosgrove)
    Original
  • Final
    IC 1795 - The Fish Head Nebula in SHO., Cosgrove's Cosmos (Patrick Cosgrove)
    B

B

Description: It was pointed out to me that the image was a bit soft. After looking at my processing chain I realized I used the wrong image as my synthetic Lum image and this cost me much sharpness - I have now corrected that.

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Sky plot

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IC 1795 - The Fish Head Nebula in SHO., Cosgrove's Cosmos (Patrick Cosgrove)