IC434 and Barnard 33 (horsehead) Ha-RGB (pfile)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Flame Nebula · HD294297 · HD37699 · HD37805 · IC 434 · Orion B

Powered byPixInsight

IC434 and Barnard 33 (horsehead) Ha-RGB

Powered byPixInsight

IC434 and Barnard 33 (horsehead) Ha-RGB

Horsehead Nebula (IC434) in Orion. captured using LB-0001 (lightbuckets.com 24" f/8 R-C telescope). camera is the Apogee Alta U42: 2Kx2K pixels.

11/19/2009-11/23/2009 in Rodeo, New Mexico, USA.

Filters: L(RGB) = Ha(R:G:B)

Exposure: 3360s(960s,1080s,1440s) = 8x420s(4x240s,6x240s,8x240s)

CCD Binning: L = 1x1 bin; RGB = 2x2 bin

L and R, G, B stacks using deepskystacker.

L and R, G, B histogram stretches using pixinsight core 1.5

L: curve and a trous wavelets for sharpening.

RGB merge, histogram stretch/align and curves in pixinsight

L-RGB registration and LRGB merge in pixinsight (L=0.63,R=0.82,G=0.88,B=0.88)

lots and lots of cleanup in photoshop CS - to fix internal reflections and ccd bleed.

final tweaks and color balance in lightroom 2

comments: color subexposures were way too long, resulting in a ridiculous amount of star halo and ccd bleed on the 3 largest stars. this took a lot of work in photoshop to undo, and it's still obvious that there was a big problem there. this was especially bad in the blue channel, hence the purple cast around the big stars.

Cloudy Nights

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	6439350
PixInsight job	RHSHFU8L131T73VFHST0VYTVHAMQSRHT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h40m54s.137
RA (top/left)	05h40m02s.835
RA (top/right)	05h40m34s.797
RA (bottom/right)	05h41m45s.422
RA (bottom/left)	05h41m13s.453

Dec (center)	-02°27′59″.50
Dec (top/left)	-02°23′09″.40
Dec (top/right)	-02°40′48″.14
Dec (bottom/right)	-02°32′48″.94
Dec (bottom/left)	-02°15′09″.84

Image Index:

Contribution Index (beta):

IC434 and Barnard 33 (horsehead) Ha-RGB

IC434 and Barnard 33 (horsehead) Ha-RGB

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

IC434 and Barnard 33 (horsehead) Ha-RGB

IC434 and Barnard 33 (horsehead) Ha-RGB

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