Messier 33 - The Triangulum Galaxy (Andrea Alessandrelli)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: HD9483 · IC 131 · IC 132 · IC 133 · IC 135 · IC 136 · IC 137 · IC 142 · IC 143 · M 33 · NGC 588 · NGC 592 · NGC 595 · NGC 598 · NGC 604 · Triangulum Galaxy · Triangulum Pinwheel

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Messier 33 - The Triangulum Galaxy

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Messier 33 - The Triangulum Galaxy

An old picture, M 33 in L(Ha)-(Ha)RGB taken in August 2018. This is one of my favourite broadband picture I've taken so far. I remember the sky was particularly dark during those days, especially in the late part of August, probably hitting Bortle 5 sometimes because I was able to see the very faint line of the Milky Way which is usually invisible from here.

Unforturnately this picture raw data was affected by an HDD breakdown so I am not able to properly fill the form for the acquisition data but here are the information I saved on from my old AB account to my Flickr page:

Dates: Aug. 9, 2018, Aug. 12, 2018, Aug. 16, 2018, Aug. 18, 2018, Aug. 19, 2018, Aug. 22, 2018, Aug. 23, 2018

Frames:
Baader Planetarium B-CCD 1.25": 32x180" -15C bin 1x1
Lumicon Deep Sky 1.25": 47x300" -15C bin 1x1
Baader Planetarium G-CCD 1.25": 32x180" -15C bin 1x1
Baader Planetarium Ha 1.25" 7nm: 130x150" (gain: 200.00) -15C bin 1x1
Baader Planetarium R-CCD 1.25": 32x180" -15C bin 1x1
Baader Planetarium UV-IR-CUT Filter - 1.25": 65x120" -15C bin 1x1

Integration: 16.3 hours

Darks: 18
Flats: 30
Flat darks: 30

Avg. Moon age: 10.49 days
Avg. Moon phase: 47.17%
Bortle Dark-Sky Scale: 5.81

Cloudy Nights
Suburban Astrophotography
Ritchey Chretien telescopes GSO Family

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
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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	6154742
PixInsight job	0LB7EJNMRVZZDL39G3YJTR7NCQ37JIHK
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h33m52s.158
RA (top/left)	01h32m25s.461
RA (top/right)	01h32m23s.979
RA (bottom/right)	01h35m18s.684
RA (bottom/left)	01h35m21s.253

Dec (center)	+30°39′05″.32
Dec (top/left)	+31°04′47″.31
Dec (top/right)	+30°13′39″.20
Dec (bottom/right)	+30°13′19″.60
Dec (bottom/left)	+31°04′27″.52

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Contribution Index (beta):

Messier 33 - The Triangulum Galaxy

Messier 33 - The Triangulum Galaxy

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Contribution Index (beta):

Messier 33 - The Triangulum Galaxy

Messier 33 - The Triangulum Galaxy

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