Squid and Flying Bat Nebula, Sh2-129 (George Hatfield)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 5 Cep) · The star Alderamin (α Cep

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Squid and Flying Bat Nebula, Sh2-129

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Squid and Flying Bat Nebula, Sh2-129

The data for this HOO image are from Telescope live (https://telescope.live/home). It consists of 3.8 hours of RGB, 1.3 hours each of Sii and Ha, and 6 hours of Oiii. The system consisted of a Takahashi FSQ-106EDX4 at f/3.6 equipped with a FLI PL16083 camera, bin 1. The squid is such a dim object that it was difficult to show it adequately, but Bill Blanshan's Narrowband Normalization script helped intensify the Oiii emissions significantly. The RGB data were not used since the bright star on the right side of the image had a very large halo. The stars used in this image were produced from the SHO data using the method described in this video (https://www.youtube.com/watch?v=YMvgfmPkn-g&t=860s). Most of the processing was done in Pixinsight with minor adjustments made in Photoshop. GraXpert 3 was used for both background extraction and noise suppression. The image was reduced in size by 50% due to noise. This is my first version, hopefully a better one will follow.

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
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Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
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Distribution of data sources

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
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
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	9893909
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Squid and Flying Bat Nebula, Sh2-129

Squid and Flying Bat Nebula, Sh2-129

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Squid and Flying Bat Nebula, Sh2-129

Squid and Flying Bat Nebula, Sh2-129

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