M81 Region and IFN ( Jan Curtis )

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's nebulae · M 81 · M 82 · NGC 2976 · NGC 3027 · NGC 3031 · NGC 3034 · NGC 3077 · The star 22UMa · The star 24UMa · The star 27UMa

Powered byPixInsight

M81 Region and IFN

Imaging Telescopes Or Lenses: Nikon NIKKOR 180 F2,8 AIS ED
Imaging Cameras: Nikon D7100
Mounts: ORION Sirius EQ-G
Software: Adobe Photoshop · Pleiades Astrophoto PixInsight · Noel Carboni's Astro Tools for PhotoShop Noel Carboni Actions
Guiding Telescopes Or Lenses: Nikon NIKKOR 180 F2,8 AIS ED

Dates:: Jan. 25, 2015 · Jan. 26, 2015 · Feb. 14, 2015 · Nov. 8, 2015 · Nov. 9, 2015 · Feb. 9, 2016
Frames:: 77×100″(2h 8′ 20″) ISO1000
71×90″(1h 46′ 30″) ISO1000
50×150″(2h 5′) ISO1250
116×90″(2h 54′) ISO1600
81×150″(3h 22′ 30″) ISO2500
7×200″(23′ 20″) ISO3200
26×150″(1h 5′) ISO4000
Integration:: 13h 44′ 40″
Avg. Moon age:: 15.30 days
Avg. Moon phase:: 19.11%
Bortle Dark-Sky Scale:: 3.67
Temperature:: -2.50

Basic astrometry details

Astrometry.net job: 958145

RA center: 09h44m07s.7

DEC center: +70°09′18″

Pixel scale: 4.477 arcsec/pixel

Orientation: 90.077 degrees

Field radius: 2.996 degrees

Resolution: 620x483

File size: 311.3 KB

Locations: Eldorado (6767' elev), @ Santa Fe, New Mexico, United States; Home observatory, Cheyenne, WY (elevation: 6014'), United States

Taken at f/5. More subs make a difference!

I've added more subs and processed with my new 5K iMac: totaling +11 hours integrated time!

Version "H" adds 77 new subs.

Original
E
F
G
Final
H

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

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.
Dismissals 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	958145
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

M81 Region and IFN

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

Image Index:

Contribution Index (beta):

M81 Region and IFN

Equipment

Acquisition details

Description

Comments

Revisions

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?

Delete this revision?

Delete this revision?

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