M33 (Triangulum) with Emission Structures in Ha / O3 (Jim Thommes)

M33 (Triangulum) with Emission Structures in Ha / O3

Link: https://www.jthommes.com/Astro/M33_HaO3.htm

The original image page is LRGB with Ha and O3 filters used to highlight the emission structures. The mouse over is the annotated image.

Rev C image page is the LRGB only image. The mouse over is the original image with Ha and O3; it serves as a 'blink' comparison for the emission structures.

M33 is a well studied galaxy and has many prominent emission structures with multiple M33 survey catalogs of these structures. The annotated image shows groupings of these emission structures - it focuses on four of these catalogs (BCLMP, CPSDP, [LHK2017], and [RVP2013]). There are also emission structures of M33 in the NGC and IC catalogs - also shown in the annotated image. There are several background galaxies and Quasars in this image that can be seen in the full size and annotated images. These objects, information, and in particular the emission structures are identified in the Annotated image as well as some of the brighter Milky Way stars.

Surveys Referenced:

BCLMP - (Boulesteix+Courtes+Laval+Monnet+Petit) 1974A&A....37...33B[size=100] ([/size]An optical study of M 33: I. Morphology of the gas.)
CPSDP - (Courtes+Petit+Sivan+Dodonov+Petit) 1987A&A...174...28C (H-α survey of M 33 [size=100]...)[/size]
[LHK2017] - (Lin+Hu+Kong+) 2017ApJ...842...97L[size=100] [/size](Spectroscopic observation and analysis of H II regions in M33 ...)
[RVP2013] - (Relano+Verley+Perez+)[size=100] [/size]2013A&A...552A.140R (Spectral energy distributions of HII regions in M33[size=100]...)[/size]

FUll size Website image (Pan and Zoom) - Full Resolution Image

Full size Website annotated image (Pan and Zoom) - Annotated Image

Final
Original
B
C
D

B

Title: Annotated Image

Uploaded: ...

C

Title: LRGB version

Description: Mouseover for Narrow Band image additions

Uploaded: ...

D

Title: M33 Ha, O3 Starless

Description: Starless NB mapping (prior to black clipping for screening into LRGB)

Uploaded: ...

Cloudy Nights
SDAA AISIG Group
Hydrogen and Oxygen Narrowband Only!
N.I.N.A. Users
SoCal Astrophotography
Deep Sky Northern Hemisphere
Imaged with N.I.N.A.
ZWO ASI2600MM Pro
AstroBin Platform open discussions community forum

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	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
Artificial satellite

	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

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	Basic success
Started	...
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

AstroBin

AstroBin

Image Index:

Contribution Index (beta):