Nebulae in Orion (Alessandro Cavallaro)

Nebulae in Orion

This picture is a beautiful frame of the central part of the constellation of Orion.
On the left side there's the vast active region of H II called IC 434. This is a very large star forming region. In front of it is the very small, yet peculiar, dark nebula known as Barnard 33 (or Horsehead Nebula).
Still on the left side (very far left) is the bright white nebula known as the Flame Nebula. Identified as NGC 2024 this nebula is about 1350 light years away. The bright part of this nebula re-emits part of the energy received from the nearby stars under the form of visible light and it's partly hiding behind part of the Orion Molecular Cloud Complex that forms the dark nebulae in that region.
The bright star between the white flame nebula and the red IC 434 is Alnitak. This is the left star of the Orion belt. Part of the light shine of Alnilam, the central star of the Orion belt, can be seen on the very top/left edge of the picture (just outside the frame).

On the right side of the picture is the very bright Great Orion Nebula also known as Messier 42. This is one of the brightest nebulae in the sky and very well visible by naked eye. A lot of details of this nebula can be recognized through a small, amatorial, telescope.
The nebula is lit by four massive stars that form the Trapezium Cluster in the heart of that nebula. Those stars emits a huge amount of UV light and other high energy photons that ionized the central part of the nebula. The heart of this nebula is so bright, compared to the rest of the nebula, that it is saturated white in this picture.
To the left of the Great Orion Nebula is the very blue "Running Man" Nebula also known as Sh2-279.

In the faint background of the picture there's some hint of part of the Orion Molecular Cloud Complex that extends through the several nebulae present in the area.

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	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

	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

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	Basic success
Started	...
Astrometry.net job	5391136
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Nebulae in Orion

Nebulae in Orion

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Nebulae in Orion

Nebulae in Orion

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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