NGC 5985, 5982, 5981, … (Alex Woronow)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: NGC 5976 · NGC 5981 · NGC 5982 · NGC 5985

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NGC 5985, 5982, 5981, …

Powered byPixInsight

NGC 5985, 5982, 5981, …

NGC 5985, 5982, 5981, …[b] [/b]
OTA:……………….CDK17
Camera:………….FLI Proline 16803, 9 micron pixels, 0.64 arcsec/pxl
Observatory:…. Rodeo, NM (owned by B. Miller)
EXPOSURES:
…R……15 x 900 sec.
…B…...13 x 900
…G……15 x 900
…L…….19 x 1200
Total exposure 17 hours
Image Width: 40 arc-minutes
Processed by Alex Woronow (2020) using PixInsight, Topaz, 3DLut, SWT

Draco is kind of a game preserve for galaxies, as this fov illustrates. The three most prominent galaxies in this image all lie at about 100M lightyears from us. Although perhaps the least picturesque galaxy of the three, the elliptical galaxy in the middle may be the most enigmatic. Elliptical galaxies generally contain an excess of older stars and little gas and dust to form new stars. The dominant hypothesis proposes that EGs form from mergers of galaxies, dominantly in earlier epochs of the universe. The union of spiral galaxies of various orientations may have led to a canceling of angular momentum in the merged EG galaxies leaving the EGs with scant organized rotation and stars in random orbits.

An alternative hypothesis is that entire EGs formed by the singular collapse of super-giant gas clouds early in the universe's history. This wide-spread, simultaneous collapse ignited massive, nearly simultaneous star formation throughout the cloud, forming a galaxy with no organized rotation and little residual dust and gas.

Alex

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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	4996255
PixInsight job	LA48LCP6LJVPUNJDAW76HLMV9OXKQ2PL
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	15h38m52s.77
RA (top/left)	15h35m39s.23
RA (top/right)	15h37m20s.85
RA (bottom/right)	15h42m04s.16
RA (bottom/left)	15h40m26s.63

Dec (center)	+59°17′53″.9
Dec (top/left)	+59°29′36″.9
Dec (top/right)	+58°53′16″.8
Dec (bottom/right)	+59°05′54″.3
Dec (bottom/left)	+59°42′25″.6

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NGC 5985, 5982, 5981, …

NGC 5985, 5982, 5981, …

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Image Index:

Contribution Index (beta):

NGC 5985, 5982, 5981, …

NGC 5985, 5982, 5981, …

Equipment

Acquisition details

Description

Comments

Sky plot

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