IC2177, Seagull Nebula (George Hatfield)

Celestial hemisphere: Southern · Constellation: Monoceros (Mon) · Contains: IC 2177 · NGC 2335 · NGC 2343

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IC2177, Seagull Nebula

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IC2177, Seagull Nebula

The data for this image are from Wei Hao Wang's image repository (https://www.astrobin.com/mjhcd5/) and consisted of 7 hours of Fujifilm GFX100S images. The telescope was an Astro Physics 92mm ( f6.6, fl 612 mm) located in Taiwan. The images from this camera are very large (11648x8736 pixels), and the image shown here is about 70% of the original size. The downloaded images were calibrated with the provided flats and darks using WBPP. Because of the size of the images, the registration and stacking were done outside of WBPP. Integration of 84 images took over 6 hours on my modest laptop! Processing of the 70% resampled image was done using Pixinsight. Color calibration used SPCC with only minor adjusts in Photoshop. GraXpert AI was used to remove gradients. The final version involved a more careful use of GHS with no use of the local stretch intensity which in my hands tends to decrease contrast.

Original
Final
B

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Professional, scientific grade data
Mix of multiple sources
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	Basic success
Started	...
Astrometry.net job	9255277
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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IC2177, Seagull Nebula

IC2177, Seagull Nebula

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IC2177, Seagull Nebula

IC2177, Seagull Nebula

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