Heart and Soul.....sort of - HaSHO (Rodd Dryfoos)

Heart and Soul.....sort of - HaSHO

This is first light with the recollimated FSQ 106. I thought this an interesting FOV. I didn't want to shoot the Heart, or the Soul, and the sensor is not large enough to capture them both. I decided to split the difference and emphasize the region between the two nebulae. This image shows just how far these to Ha emission nebulae are from each other. I am very pleased with the recollimation - I can see a difference in signal and sharpness. However, there is still something amiss with the stars. Perhaps tilt? I am not really sure how to test or correct this. The individual subs looked much worse. The Ha stack, which is 44 300 sec subs is not as bad--but still shows impaired stars. I do not think it is the scope or reducer (though the reducer was not looked at). I did install the .2mm dew strip on the ASI 1600, which sits between the camera and filter wheel--changing the back distance. But only .2mm doesn't seem that significant. Maybe it exacerbated an already present tilt issue. If anyone has an idea, please don't hesitate to let me know. Overall, I am pleased. The scope was also cleaned as were the filters and sensor window. Now I almost don't need flats!

I added OIII and SII data in this HaSHO composition. I don't think I am quite done with this image, though I probably do not need 20+ hours like I do with slower systems. There are some kinks to work out. There is an issue - maybe tilt - that needs to be addressed. Hopefully I got the adjustment issues with the mount corrected. After the meridian flip I had to hunt for my focus star for an hour and a half. This usually happens when I switch to a long focal length, narrow field of view instrument--not the FSQ and ASI 1600 with the .6x reducer, which has the largest FOV I have. Hopefully the mount now is set so I can avoid this waste of time.

B

Description: Image08d: Added OIII and SII

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Description: Reprocess

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H

Description: Less noise control z6a

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Status	Advanced success
Started	...
Astrometry.net job	7966505
PixInsight job	CXC6OPDOXE3PH8DXKSYZMN5H1XUVZY0B
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h42m52s.28
RA (top/left)	02h30m43s.55
RA (top/right)	02h55m14s.69
RA (bottom/right)	02h55m57s.29
RA (bottom/left)	02h29m34s.90

Dec (center)	+61°01′05″.7
Dec (top/left)	+59°47′00″.4
Dec (top/right)	+59°49′17″.7
Dec (bottom/right)	+62°10′31″.7
Dec (bottom/left)	+62°08′20″.3

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