The E-Nebula (Kurt Zeppetello)

Celestial hemisphere: Northern · Constellation: Aquila (Aql) · Contains: B142 · B143 · LDN 687 · LDN 688 · LDN 689 · LDN 690 · LDN 694 · LDN 700

Powered byPixInsight

The E-Nebula

Link: http://astroquest1.blogspot.com/

Powered byPixInsight

The E-Nebula

Link: http://astroquest1.blogspot.com/

The E-Nebula is a pair of dark nebula (B142 and B143) in the constellation of Aquila. E.E. Barnard described and designated these two nebula as B143 (northern region resembling a square with a missing side) and B142 (southern region). These two nebula together form a giant "E" in space with an apparent size equivalent to that of a full moon and is some 2000 light-years from Earth. The interstellar cloud that makes up the nebula stands out well against the heavy star field and like all molecular clouds can reach temperatures low enough where different types of stable molecules can exist. I can't get over all the stars in this region and this is after some tar reduction. Most of them appear yellowish but I suspect they are being masked a bit by the vast amount of gas and dust.

This image would have been a lot easier to process had I just collected more RGB data in place of the luminosity data. The luminosity looked good on its own but when I combined it with the RGB the stars seemed more bloated. However, the luminosity did enhance the dark nebula slightly and reduced the noise a bit. I created an RGB mask for the stars and combined the luminosity to the rest of the image. I am OK with how it turned out but if I were doing this again I would just collect more RGB and skip the luminosity altogether.

N.I.N.A. Users
Imaged with APT

All - Most Recent First
Favorites-DSO
Reflection Nebula

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	2904417
PixInsight job	X2RR2V4IZJFYY6RIZ4NJ528SQFF3XXZV
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h40m43s.30
RA (top/left)	19h44m07s.48
RA (top/right)	19h37m55s.92
RA (bottom/right)	19h37m19s.63
RA (bottom/left)	19h43m30s.40

Dec (center)	+10°47′07″.8
Dec (top/left)	+11°14′20″.10
Dec (top/right)	+11°26′38″.4
Dec (bottom/right)	+10°19′43″.8
Dec (bottom/left)	+10°07′28″.7

Image Index:

Contribution Index (beta):

The E-Nebula

The E-Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

The E-Nebula

The E-Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

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