Messier 99 & Messier 100 (Antoine Grelin)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: Coma Pinwheel · IC 3327 · IC 781 · IC 783 · M 100 · M 99 · NGC 4237 · NGC 4254 · NGC 4262 · NGC 4298 · NGC 4302 · NGC 4312 · NGC 4321 · NGC 4322 · NGC 4328 · NGC 4377 · NGC 4379 · Virgo Cluster Pinwheel

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Messier 99 & Messier 100

Link: https://www.galactic-hunter.com//post/m99-and-m100" rel="noreferrer nofollow">www.galactic-hunter.com//post/m99-and-m100

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Messier 99 & Messier 100

Link: https://www.galactic-hunter.com//post/m99-and-m100" rel="noreferrer nofollow">www.galactic-hunter.com//post/m99-and-m100

Messier 99 and Messier 100 are two grand design spiral galaxies located in a busy area of Coma Berenices. M99 and M100 are both beautiful objects, and they lie very close to many other galaxies.

We imaged these galaxies from our usual Bortle 4 spot, one hour north from Las Vegas. Midway through the night, our Intel Nuc computer attached to our telescope decided to glitch and crash. This happened when we were both asleep in the trunk of the car. I woke up at 2 AM, sensing that something terrible had happened. I realized that the computer crashed and went out in the cold to reboot it.

I was very sleepy and just launched SGP/PHD2 very quickly before going back to sleep. Back at home, half of the data was un-stackable and produced such strange artifacts. My guess is that SGP, upon crashing, messed up with the camera settings and so the data taken after 2 AM was with some weird settings. Anyway, the image you will see below is without any darks, flats, or any other calibration frames.

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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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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	5294366
PixInsight job	ZOU1A0DOBH8ZBXHCFZ02UFPRSMJ554N8
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h21m35s.30
RA (top/left)	12h24m45s.99
RA (top/right)	12h16m33s.15
RA (bottom/right)	12h18m26s.12
RA (bottom/left)	12h26m35s.35

Dec (center)	+15°08′09″.3
Dec (top/left)	+16°08′39″.7
Dec (top/right)	+15°30′15″.6
Dec (bottom/right)	+14°07′27″.3
Dec (bottom/left)	+14°45′40″.4

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Messier 99 & Messier 100

Messier 99 & Messier 100

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Messier 99 & Messier 100

Messier 99 & Messier 100

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