NGC 6744 (Caldwell 101) (Eduardo Rigoldi Fernandes)

Celestial hemisphere: Southern · Constellation: Pavo (Pav) · Contains: IC 4820 · IC 4823 · NGC 6744

Powered byPixInsight

NGC 6744 (Caldwell 101)

Powered byPixInsight

NGC 6744 (Caldwell 101)

The spiral galaxy NGC 6744, also known as Caldwell 101, located in the constellation Pavo. Situated approximately 30 million light-years from Earth, NGC 6744 is one of the spiral galaxies most similar to our own Milky Way in terms of structure and dimensions.

NGC 6744 features a yellowish central nucleus, predominantly composed of older, metal-poor stars. Surrounding this nucleus, we can observe its vast spiral arms, filled with star-forming regions and emission nebulae, which appear in shades of blue and pink due to the intense activity of young, massive stars. This galaxy spans about 175,000 light-years, making it one of the largest known spiral galaxies.

It is interesting to note the small satellite galaxy visible in the image, which resembles the Large Magellanic Cloud, one of the Milky Way's satellites. This dwarf galaxy interacts gravitationally with NGC 6744, contributing to the dynamics and formation of new stars in the main galaxy's spiral arms.

Studying NGC 6744 provides valuable insights into the structure and evolution of spiral galaxies like our own. The observable features of NGC 6744, such as active star formation and the presence of satellite galaxies, allow astronomers to compare theoretical models with practical observations, deepening the understanding of galactic interactions and structure formation in the universe.

I used the clear filter as luminance for the RGB and subtracted the R from Ha.

Brazilian Astrophotographers
Munhoz Observatory

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	10071303
PixInsight job	5H7EQ8Q59OSFIWX9YNP000TWCIFCRXIO
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h09m44s.827
RA (top/left)	19h06m36s.817
RA (top/right)	19h08m11s.753
RA (bottom/right)	19h12m57s.668
RA (bottom/left)	19h11m14s.779

Dec (center)	-63°51′24″.65
Dec (top/left)	-63°30′24″.35
Dec (top/right)	-64°19′13″.89
Dec (bottom/right)	-64°12′12″.17
Dec (bottom/left)	-63°23′34″.37

Image Index:

Contribution Index (beta):

NGC 6744 (Caldwell 101)

NGC 6744 (Caldwell 101)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Image Index:

Contribution Index (beta):

NGC 6744 (Caldwell 101)

NGC 6744 (Caldwell 101)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information