File:Arp-Madore 135-650.png

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Summary

Description

One-color image of the disturbed galaxy Arp-Madore 135-650, also known as NGC 646. This was observed for one of the gap-filler programs. If I could make a color image, it might appear blueish up top where all the star formation is ongoing, and less blue at the bottom. This is what makes the galaxy interesting, according to a brief mention on Twitter by principle investigator Julianne Dalcanton: twitter.com/dalcantonJD/status/1038436462876741633

The puzzle is to figure out why is it all clumpy and star-formy on one side, but smooth and not so much on the other side.

I cleaned off a satellite trail and a few hundred cosmic rays.

Data from the following proposal is used to create this image: Establishing HST's Low Redshift Archive of Interacting Systems

All channels: ACS/WFC F606W

North is NOT up. It is 43.07° counter-clockwise from up.
Date
Source Arp-Madore 135-650
Author Judy Schmidt from USA

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This image was originally posted to Flickr by geckzilla at https://flickr.com/photos/54209675@N00/44559385822 (archive). It was reviewed on 15 September 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

15 September 2018

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11 September 2018

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Date/TimeThumbnailDimensionsUserComment
current09:19, 15 September 2018Thumbnail for version as of 09:19, 15 September 20183,724 × 2,376 (8.81 MB)Fabian RRRR=={{int:filedesc}}== {{Information |Description=One-color image of the disturbed galaxy Arp-Madore 135-650, also known as NGC 646. This was observed for one of the gap-filler programs. If I could make a color image, it might appear blueish up top where all the star formation is ongoing, and less blue at the bottom. This is what makes the galaxy interesting, according to a brief mention on Twitter by principle investigator Julianne Dalcanton: [https://twitter.com/dalcantonJD/status/10384364628...
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