Pelican nebula Ha (Duane Melvin)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 56 Cyg · 57 Cyg · B349 · HD198896 · HD198931 · HD199069 · HD199098 · HD199137 · HD199138 · HD199178 · HD199206 · HD199312 · HD199417 · HD199479 · IC 5070 · LBN 334 · LBN 338 · LBN 341 · LBN 343 · LBN 350 · LBN 353 · LBN 359 · LDN 933 · LDN 936 · NGC 6989 · NGC 6997 · Pelican Nebula · The star 56 Cyg · The star 57 Cyg

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Pelican nebula Ha

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Pelican nebula Ha

EXPOSURE:
37 subs 180 Sec. Antlia 2" Dia. 3nm Ha Parfocal filter in single Starizona magnetic slide tray

MAIN CAMERA:
QHY294m Pro camera in 46.8-megapixel mode, 4/3 sensor cooled to -10 Degrees C

MAIN CAMERA GAIN/OFFSET: 1811/50

MAIN TELESCOPE:
Skywatcher Esprit 100ED APO Triplet,
100x550; F/5.5 with Esprit 40mm Image circle field flattener (supplied with purchase)

SKY:
Bortle 7

GUIDING:
(1) Orion 80x320 refractor guidescope with Starshoot Autoguider TM camera ST4 cable direct
(2) EQ6R PRO mount!
(guiding must be perfect with 2.3u pixels and 0.8 arcsec/pixel, and these two items really deliver)

hand focusing with fine cut Bahtinov mask

POLAR NCP ALIGNMENT:
The Polemaster NCP alignment camera/software system (Best in the West or East)

SOFTWARE:
APT capture
PHD guiding
Deep Sky Stacker
Photoshop

Please note: The following tables are updated every 24 hours.

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	5894182
PixInsight job	MCGI2Y2HOX96ZL07F88CKN2Y2Z03MVD3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h50m57s.339
RA (top/left)	20h53m10s.903
RA (top/right)	20h44m21s.186
RA (bottom/right)	20h48m49s.299
RA (bottom/left)	20h57m35s.370

Dec (center)	+44°24′15″.13
Dec (top/left)	+45°31′15″.41
Dec (top/right)	+44°18′57″.72
Dec (bottom/right)	+43°17′05″.78
Dec (bottom/left)	+44°28′06″.78

Image Index:

Contribution Index (beta):

Pelican nebula Ha

Pelican nebula Ha

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Image Index:

Contribution Index (beta):

Pelican nebula Ha

Pelican nebula Ha

Equipment

Acquisition details

Description

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Sky plot

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