M81 and M82 (Dan Miller)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · Cigar Galaxy · HD85161 · M 81 · M 82 · NGC 3031 · NGC 3034

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M81 and M82

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M81 and M82

M81 and M82 on 2023/03/26
Equipment
Mount: Advanced GT
Lens: Sigma 150-600 Contemporary
Image Camera: Modified T3i ASP-C
*** Taped black velvet over the view finder.
Guide Scope: ZWO 30mm f/4
Guide Camnera: ZWO ASI120MM-S 1.2 MP CMOS

Session Software:
N.I.N.A., PHD2, ASTAP, Ascom Drivers

Image Session:
Moon Waxing - 25%
Skies Clear
Good polar alignment
Guiding was good
60s Subs at 600mm Focal Length at 5.6 Aperture
Focus could have been better, but was pretty consistant.
Meridian flip seemed to fail. After flip said camera was not avaible, and could not recenter.
   Then went into some weird loop of saving images and taking very short exposures.
   Closed out N.I.N.A., started N.I.N.A. again and found my guiding and telescope settings cleared out.
   Went out and checked everything and found the flip had occured. I reset guiding and telescope settings,
   reframed and started sequence again. Guiding was terible, so recalibrated PHD2 and restarted sequence.
   Guiding went back to being good.
   *** I found out that all my profile settings were reset including file path and file naming convention. Had to
       go looking for my additional session files.
Pushed it with the clouds rolling in to the very end. The HFR counts started to go up which is why I called it a night.

0 Flat - Flat screen quit workin, bare wires
100 bias
20 Dark
209 Light
** 39 rejected

Edited so many times I don't remember the exact steps

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	7415907
PixInsight job	KLLL5SXFT0PPG17KA1WQTL93MKG7IX1I
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h55m54s.88
RA (top/left)	09h49m38s.28
RA (top/right)	09h58m34s.33
RA (bottom/right)	10h02m20s.98
RA (bottom/left)	09h53m07s.22

Dec (center)	+69°18′01″.2
Dec (top/left)	+69°00′15″.10
Dec (top/right)	+68°42′53″.7
Dec (bottom/right)	+69°34′43″.10
Dec (bottom/left)	+69°52′48″.10

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M81 and M82

M81 and M82

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Image Index:

Contribution Index (beta):

M81 and M82

M81 and M82

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Acquisition details

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