NGC 891 Edge-On Galaxy – Through Metro LP & Moonlight

NGC 891. 42x 5 min (42 x (10x30sec LiveStacks) w/SharpCap 3.2.) Televeu TV-85 @ F/5.6, UHC filter, QHY183c at -15C, Gain 42, Offset 42.

Here is an interesting experiment I did in shooting short, 10-sub x 30 sec “subs-stacks” with  LiveStacking in SmartCap 3.2 and stacking the stub-stacks in IRIS.  I used Fitsworks first to orient the 5 min stacks taken after the meridian flip with the first batch.   Final post-processing was done in PS.

I squeezed in two other shots this night – one of the moon and a test for guiding I did on Mirach.   The test involved changing the PHD2 camera selection to the Ascom Toupcam driver instead of the regular version I used that gave trouble in the last session.  That solved a problem with the camera dropping and losing connection.

Similar to NGC 981 above, I did twelve 10-sub stacks of Mirach for 5 minutes each for a grand total of 60 minutes of exposure:

Mirach and Mirach’s Ghost. 12×300 sec using 10×30 sub-stacks. TV-85 at F/5.6, UHC Filter, QHY183c @ -15C, Gain 42, Offset 42.

The moon was out and after shooting NGC 891, I captured it in a .SER movie with 100 frames.  I used 20 to make a still with the AutoStakkert software.   Here’s the result:

The Moon on Nov 16, 2019, early AM. Televue TV-85 at F/5.6, QHY183c, UHC filter.

Very clear conditions this night, but seeing was mediocre, with strong LP and moonlight interference.  Cold for Cajun country, too… it got down to mid-to-upper 30’s.  Brrr…

 

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