M33 (OSC RGB) (JDJ)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: 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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M33 (OSC RGB)

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M33 (OSC RGB)

Imaged M33, the Triangulum Galaxy, on the nights of January 12-13, 2021 and November 25, 2019.

Imaged with WO GT81 at F4.7 (382 mm focal length) using Flat6A II field flattener/0.8x reducer, IDAS LPS-D1 filter, and full spectrum modified Nikon D5300. Total integration time of ~7 hours using 104 subs at ISO200x240 sec.

Pre-processed using PixInsight Batch Pre-Processing (BPP) script. Images calibrated using darks, flats, and flat darks. Stacked using integration and then drizzle integration. Post-processed in Pixinsight: Cropped, gradient removal with ABE, EZ Processing Suite for PixInsight Denoise, Photometric Color Calibration, stretched using masked stretch, Curves Transformation, Local histogram transform, and Morphological Transformation to shrink stars, and color saturation increase. Additional noise reduction and mild sharpening using Topaz Studios DeNoise AI.

The refractors!
Cloudy Nights
DSLR/Mirrorless Imagers from the World
Suburban Astrophotography
The OSC Club (One Shot Camera)
Nikon Imagers

Galaxies

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	4169492
PixInsight job	VTFB32CZTF8NRTV4GGVBGBCSY3RZWABU
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	01h33m49s.90
RA (top/left)	01h36m56s.52
RA (top/right)	01h29m57s.85
RA (bottom/right)	01h30m45s.32
RA (bottom/left)	01h37m36s.90

Dec (center)	+30°38′02″.1
Dec (top/left)	+31°36′35″.4
Dec (top/right)	+31°28′56″.0
Dec (bottom/right)	+29°39′08″.4
Dec (bottom/left)	+29°46′40″.5

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Contribution Index (beta):

M33 (OSC RGB)

M33 (OSC RGB)

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Image Index:

Contribution Index (beta):

M33 (OSC RGB)

M33 (OSC RGB)

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Description

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Sky plot

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