Melotte15 (Sendhil Chinnasamy)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1805 · LDN 1367 · LDN 1368 · LDN 1369 · Sh2-190

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Melotte15

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Melotte15

Melotte15 - the mandatory long focal length target 🙂.

I was not planning on this target when I started, but ran into guiding issues last month and wanted to test on a target each night after I made some corrections to the imaging train. This was high enough at the beginning of the night to test.

This was shot at varying rotation angles (to check if the Dec axis would stay put) over the course of several nights that were close enough. When I got everything under decent control, this was the the final framing.

I was hesitant to add the initial subs from October as their orientation was different. I had the time to at-least run them through stacking just to see how they were. But when I brought them all together during registration and integration , PixInsight kind of filled all the missing regions nicely. That was a pleasant surprise.

I took it though the default SHO combination and processing. Deconvolution is still not under control. I realize I am spending way too much time at that step testing and retesting. But having done a few targets with this setup, I think I have the settings close enough to run with on new stacks.

Hope you like this result. Clear skies!

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Distribution of data sources

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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	5236145
PixInsight job	60EQO8JDO4EUQ3RHQT54GRT38GZY4EVY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h33m26s.532
RA (top/left)	02h35m25s.588
RA (top/right)	02h31m25s.914
RA (bottom/right)	02h31m28s.674
RA (bottom/left)	02h35m25s.920

Dec (center)	+61°24′19″.30
Dec (top/left)	+61°34′00″.39
Dec (top/right)	+61°33′44″.32
Dec (bottom/right)	+61°14′31″.13
Dec (bottom/left)	+61°14′46″.98

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Melotte15

Melotte15

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Image Index:

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Melotte15

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