Sh2-261 Lower's Nebula Ha (Rodd Dryfoos)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: 69 f01 Ori · Sh2-261 · The star 69Ori

Powered byPixInsight

Sh2-261 Lower's Nebula Ha

Powered byPixInsight

Sh2-261 Lower's Nebula Ha

I got tired of the "not quite right" stars I experience with the FSQ and .6x reducer. The first step toward diagnostics I was told is to use the scope at F5. I needed a decent target to shoot in Ha (the Moon is up). I had never imaged Lower's Nebula, it was perfectly placed in the sky for imaging, and the FSQ at F5 frames it nicely. Its not a magnificent image for sure, but I think this will make a decent SHO, HOO or HaRGB image when, or if, the clouds disappear. I have always liked mono Ha images, and this one is no exception. I definitely need more (and better) Ha data to start. It was very windy this night. While the wind gusts had little direct impact on my guiding, the air column must have been very turbulent. And the Moon was quite near the target, reeking havoc on my background. At first the image looked great on my computer but as soon as I looked at it on my iphone (usually a very good screen), I saw the background was terrible. Hopefully I fixed it. The day before I was able to achieve a FWHM a full arcsec better. I may have been able to capture an hour more. But that's it. The most I can do on this target in one night is about 5 hours.

Original
Final
L

L

Description: h47a

Uploaded: ...

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	4566664
PixInsight job	SMSOP4TS3OKWUVU1GMGS9T6RJCC19VGW
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h09m02s.24
RA (top/left)	06h05m10s.68
RA (top/right)	06h12m53s.80
RA (bottom/right)	06h12m55s.30
RA (bottom/left)	06h05m09s.14

Dec (center)	+15°47′21″.2
Dec (top/left)	+15°04′41″.9
Dec (top/right)	+15°04′41″.7
Dec (bottom/right)	+16°29′45″.8
Dec (bottom/left)	+16°29′45″.3

Image Index:

Contribution Index (beta):

Sh2-261 Lower's Nebula Ha

Sh2-261 Lower's Nebula Ha

Equipment

Acquisition details

Description

Comments

Revisions

L

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Sh2-261 Lower's Nebula Ha

Sh2-261 Lower's Nebula Ha

Equipment

Acquisition details

Description

Comments

Revisions

L

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?

Delete this revision?

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