M81 and M82 with a UV/IR Cut and L-Ultimate Filters (Steve Argereow)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · Cigar Galaxy · HD85161 · HD85458 · M 81 · M 82 · NGC 3031 · NGC 3034

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M81 and M82 with a UV/IR Cut and L-Ultimate Filters

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M81 and M82 with a UV/IR Cut and L-Ultimate Filters

M81, also known as Bode's galaxy, is a large bright spiral galaxy located 11.8 million light-years away in the constellation of Ursa Major. With an apparent magnitude of +6.9, it's easily visible with binoculars and is a superb target for all sizes of telescopes. This galaxy is a striking example of a grand design spiral and exhibits near perfect and well- defined spiral arms imaging target for amateur astronomers. Both M81 and M82 were discovered by Johann Elert Bode on December 31, 1774. Bode is also the Astronomer who was credited with "Bode's Law" and determined the orbit of Uranus and suggested the planet's name.
M81 is 11.8 million light-years away, 90,000 light-years in diameter, with >250 billion stars.

Information Credits: Home Free Star Charts

Telescope: Explore Scientific 127mm CF APO Refractor f/5.25 667mm
Mount IOptron CEM40
Camera ZWO2600MC Temp -10C Binning 1 x 1
ZWO EFW/ 2" Filter Tray

30 X 300 Second Exposures W/Optolong L-Ultimate Gain 100 Offset - 2 hrs 30 min Taken on Feb March 2023
15 X 600 Second Exposures W/Optolong L-Ultimate Gain 100 Offset - 2 hrs 30 min Taken on 3/16/2023
39 X 300 Second Exposures W/Optolong L-Ultimate Gain 100 Offset 50 - 3hrs 15 min Taken on 3/20/2023
64 X 240 Second Exposures W/Optolong L-Pro Gain 100 Offset 50 - 4hrs 16 min Taken March 2022
30 Dark Frames/ and Flats

Total Integration Time: 12 Hours 31 Minutes
Acquisition with SharpCap
Stacked with APP
Guiding PHD2
Processed with Astra Image

Photo taken from Seven Lakes, NC: Bortle 4.5

North Carolina Astronomers
SharpCap Users
AstroBin Platform open discussions community forum
ZWO ASI 2600MC PRO

Please note: The following tables are updated every 24 hours.

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	7406561
PixInsight job	H2E6RI6EH9NUB69C31T77JFU6M4CY5A2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h55m22s.49
RA (top/left)	09h59m33s.70
RA (top/right)	09h59m23s.18
RA (bottom/right)	09h50m58s.38
RA (bottom/left)	09h51m34s.68

Dec (center)	+69°19′08″.7
Dec (top/left)	+68°45′33″.9
Dec (top/right)	+69°53′42″.7
Dec (bottom/right)	+69°52′17″.2
Dec (bottom/left)	+68°44′16″.8

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M81 and M82 with a UV/IR Cut and L-Ultimate Filters

M81 and M82 with a UV/IR Cut and L-Ultimate Filters

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M81 and M82 with a UV/IR Cut and L-Ultimate Filters

M81 and M82 with a UV/IR Cut and L-Ultimate Filters

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