DWB111 Propeller nebula (Duane Melvin)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: HD191810 · HD192403 · HD192496 · HD192535 · HD192583 · HD192731 · HD192867 · HD192868 · HD192911 · HD193632 · HD193793 · HD193926 · LBN 278 · LBN 298 · LBN 303

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DWB111 Propeller nebula

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DWB111 Propeller nebula

Combined data work in progress - 6-15-2023, 7-30-2023

6-15-2023 - ambient temp 56 Degrees F humidity 98% !!
40 subframes at 180 Seconds each total of 2 hours light using Antlia 3nM Ha 2 inch Dia mounted filter
10 Darks 180 Seconds each @ -18C 0.5 hours
no Flats, DF, or Bias frames were used

7-30-2023 - ambient temp 75 Degrees F humidity 98%
10 subframes at 200 Seconds each total of 3.33 hours light using 3nM Ha 2 inch Dia mounted filter
10 Darks 200 Seconds each @ 0C 0.33 hours
no Flats, DF, or Bias frames were used

2.33 hours total

QHY268m pro main camera 16bits 26MP APS-C
Esprit 100ED
Eq6RPRO mount with pier extension
Orion 80x300 guide scope with starshootTM camera - PHD guiding < 1-pixel error 5u pixels

APT
DEEPSKYSTACKER
PIXINSIGHT
PS

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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

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
Landscape

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	Advanced success
Started	...
Astrometry.net job	8168557
PixInsight job	JVMBT4YW4W6OJTWI9BOJKQMY6E5E3S00
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h16m22s.35
RA (top/left)	20h19m45s.45
RA (top/right)	20h09m16s.90
RA (bottom/right)	20h13m06s.54
RA (bottom/left)	20h23m28s.77

Dec (center)	+43°38′14″.1
Dec (top/left)	+44°46′18″.9
Dec (top/right)	+43°33′39″.1
Dec (bottom/right)	+42°29′45″.4
Dec (bottom/left)	+43°41′08″.4

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DWB111 Propeller nebula

DWB111 Propeller nebula

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DWB111 Propeller nebula

DWB111 Propeller nebula

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