Auriga Widefield Mosaic in Narrowband (David Andra)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: 14 Aur · 16 Aur · 17 AR Aur · 18 Aur · 19 Aur · 24 phi Aur · AE Aur · Flaming Star Nebula · IC 405 · IC 410 · IC 417 · LBN 791 · LBN 794 · LBN 795 · LBN 796 · LBN 804 · LBN 807 · LBN 810 · LDN 1510 · LDN 1516 · LDN 1526 · M 38 · NGC 1893 · NGC 1907 · NGC 1912 · NGC 1931 · Sh2-229 · Sh2-230 · Sh2-234 · Sh2-236 · And 5 more.

Powered byPixInsight

Auriga Widefield Mosaic in Narrowband

Powered byPixInsight

Auriga Widefield Mosaic in Narrowband

This widefield image in Auriga is my first mosaic with the Esprit 150 and a Riccardi reducer (0.75X). The reducer produces a focal length of about 788mm with a focal ratio of f/5.25. This combination was paired with a ZWO ASI6200MM camera and Astronomik 6nm SHO filters to shoot 6 minute subs over four nights ending December 2, 2021. SHO=RGB=510+744+606 minutes= 1860 minutes or about 31 hours after rejection of about 5% of the total collected data. Voyager planned the mosaic and captured the subs.

The image was somewhat challenging to process, at least for me, since the ratios between S, H, and O varied between the objects (e.g. the Tadpoles (IC 410) had considerable sulfur signal compared to the other nebulae. I stacked the data in APP and most of the processing was then accomplished with Star Tools. I settled on a SHO palette that produced green-blue for hydrogen-oxygen regions and red in regions of sulfur emission, not straying too far from the basic, greenish Hubble palette.

Central USA

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	5298873
PixInsight job	TKEG8BX2GED24JLAICGOY6J6UA2DYB45
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h21m58s.56
RA (top/left)	05h13m49s.87
RA (top/right)	05h34m18s.25
RA (bottom/right)	05h30m30s.69
RA (bottom/left)	05h09m34s.84

Dec (center)	+34°13′58″.5
Dec (top/left)	+32°18′53″.3
Dec (top/right)	+33°55′47″.1
Dec (bottom/right)	+36°07′33″.7
Dec (bottom/left)	+34°27′34″.5

Image Index:

Contribution Index (beta):

Auriga Widefield Mosaic in Narrowband

Auriga Widefield Mosaic in Narrowband

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Auriga Widefield Mosaic in Narrowband

Auriga Widefield Mosaic in Narrowband

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information