IC417 & NGC1931 - The spider & fly HaRGB (Göran Nilsson)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: 24 phi Aur · IC 417 · NGC 1931 · Sh2-234 · Sh2-237 · The star φAur

Powered byPixInsight

IC417 & NGC1931 - The spider & fly HaRGB

Powered byPixInsight

IC417 & NGC1931 - The spider & fly HaRGB

Last nigh was cloudless and virtually moonless but seeing was not great so my guiding was poor, ca 1.0 - 1.5 "/pixel. I was aiming at these neublae with my double Esprit rig. I collected RGB with Esprit 150 and ASI071, and managed to get 82 x 5 min (6.8 hours) before the obsy wall got in the way. Ha was collected with the Esprit 100 and ASI1600MM but after the flip around 22.00, the gain apparently got stuck at the very high setting I used for focusing, so while I took the dog for a last walk and then went to bed, it was just collecting blown out wite frames. So, I ended up with the 4 x 15 min Ha I had before the flip. I added this sparingly to the red channel.

Here is what is written for an APOD image of these nebulae: Will the spider ever catch the fly? Not if both are large emission nebulas toward the constellation of the Charioteer (Auriga). The spider-shaped gas cloud on the right is actually an emission nebula labelled IC 417, while the smaller fly-shaped cloud on the left is dubbed NGC 1931 and is both an emission nebula and a reflection nebula. About 10,000 light-years distant, both nebulas harbor young, open star clusters. For scale, the more compact NGC 1931 (Fly) is about 10 light-years across.

The OSC Club (One Shot Camera)
ASI 071 mcc
AstroBin Platform open discussions community forum

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
Artificial satellite

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	...
PixInsight job	UAS43VXGRA88N9RYQKLBUYH7JTQ1PW8B
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h29m24s.78
RA (top/left)	05h32m51s.73
RA (top/right)	05h26m49s.50
RA (bottom/right)	05h25m59s.20
RA (bottom/left)	05h31m57s.68

Dec (center)	+34°19′51″.2
Dec (top/left)	+34°35′59″.4
Dec (top/right)	+34°52′24″.7
Dec (bottom/right)	+34°03′20″.2
Dec (bottom/left)	+33°47′04″.3

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

IC417 & NGC1931 - The spider & fly HaRGB

IC417 & NGC1931 - The spider & fly HaRGB

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

IC417 & NGC1931 - The spider & fly HaRGB

IC417 & NGC1931 - The spider & fly HaRGB

Equipment

Acquisition details

Description

Comments

Revisions

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?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Error

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information