NGC1491 - The Fossil Footprint Nebula (John Dziuba)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: HD25305 · HD25515 · LBN 704 · LBN 705 · LBN 706 · NGC 1491 · Sh2-206

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NGC1491 - The Fossil Footprint Nebula

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NGC1491 - The Fossil Footprint Nebula

The weather in California has been brutal this winter with very few clear nights. Even on a mostly clear night, there was usually a thin layer of cirrus. I collected about 120 hours of data in total over a four month period and discarded all but the best 40 hours of mediocre data. This is one of only three images that I was able to produce from that site over the entire winter! The others struggled to get many votes in the IoTD process as they suffered from poor data quality as well. So for this one, I just kept on collecting data, the brute force approach.

In December we actually had four or five clear nights. But right on cue, my onboard computer was corrupted by a Windows update and became very unstable. I lost a good chunk of data and and a bunch of clear nights trouble shooting. I finally gave up and sent out a spare computer to the observatory which got me going again just in time for the next round of atmospheric rivers.

So, taking into account four months of pier rental, on-site tech support, and Fedex charges.... this is one very expensive image!

It was a bear to process. The SNR was not great due to the sky conditions and the seeing was sub-par. Like many of my images these days, after the first few hours of processing I walked away from it disgusted thinking there is no way I can create a decent image out of this mess. But, I kept coming back and trying different tricks and processes. In the end, I am pleased with the result given what I had to work with.

Thanks for stopping by.

CS

Original
D
I
J
Final
K

ASI 6200 MM Pro
Fine Art Astrophotography
GHS Made a Substantial Difference
Southern Hemisphere Astro
Takahashi Refractors
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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	9378350
PixInsight job	EQEBWU8KFGLPRLVVO9H874PK5HYA19TW
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	04h03m56s.390
RA (top/left)	04h07m23s.337
RA (top/right)	04h07m08s.777
RA (bottom/right)	04h00m22s.570
RA (bottom/left)	04h00m49s.185

Dec (center)	+51°18′28″.41
Dec (top/left)	+50°36′04″.30
Dec (top/right)	+52°02′51″.12
Dec (bottom/right)	+52°00′29″.66
Dec (bottom/left)	+50°33′43″.65

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NGC1491 - The Fossil Footprint Nebula

NGC1491 - The Fossil Footprint Nebula

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NGC1491 - The Fossil Footprint Nebula

NGC1491 - The Fossil Footprint Nebula

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