NGC 2685, Polar Ring Galaxy (Kent Wood)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Helix Galaxy · NGC 2685

Image of the day 07/05/2023

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NGC 2685, Polar Ring Galaxy

Link: https://www.flickr.com/photos/kvwood/53008151724/in/dateposted-public/

Image of the day 07/05/2023

Powered byPixInsight

NGC 2685, Polar Ring Galaxy

Link: https://www.flickr.com/photos/kvwood/53008151724/in/dateposted-public/

NGC 2685 is a lenticular and polar ring galaxy that lies about 41 million light years distant. Polar ring galaxies are rare and exhibit an outer ring of stars, gas and dust that orbits in a plane perpendicular to the normally flat plane of a spiral galaxy. There are a couple of prevailing ideas regarding the evolution of such a galaxy. One suggests that the galactic material is tidally stripped from a passing galaxy. The other proposes a collision of a smaller galaxy with a larger, the smaller approaching with its plane of rotation perpendicular to that of the larger.In NGC 2685 we see filamentary strands forming a helical band that runs perpendicular to the main disk. It is centered on the galactic nucleus and consists of knots of luminous stellar clusters and nurseries. What we see suggests that NGC 2685 once had a smaller companion that has been captured, and with which it has merged forming the helical, luminous rings we see today. This image gives the appearance of the galaxy spiraling towards us, but in fact, it is receding from earth at a speed of close to 900 km/second or slightly more than 3.2 million kph!

Image acquisition info:
Date: March 2023
Location: Fairview, UT
Telescope: Planewave 17
Camera: QHY 600M
LRGB: 40:21:21:21 (600s subs-17 hours)

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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.

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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.
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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	...
Astrometry.net job	7948316
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Image of the day 07/05/2023

NGC 2685, Polar Ring Galaxy

Image of the day 07/05/2023

NGC 2685, Polar Ring Galaxy

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Image of the day 07/05/2023

NGC 2685, Polar Ring Galaxy

Image of the day 07/05/2023

NGC 2685, Polar Ring Galaxy

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