Triangulum Hubble Mosaic - a photo on Flickriver

Data from the PHATTER survey, Primary Investigator: Julianne Dalcanton.

A color mosaic showing the Triangulum Galaxy. It looks very noisy, but the noise is actually individual stars being resolved. There is a warm yellow core, and cool cyan periphery. The spiral is not strongly defined, but still discernible. Splotches of reddish dust are scattered about. Blue clouds of concentrated star formation are seen mainly in the arms. Many, many clusters of stars and globular clusters speckle the image. A few bright foreground stars from our Milky Way are intruding upon the image, but not so many that they are very distracting. At the edge are some zig zagging boundaries where the edge of the mosaic is. Areas which were empty have been filled with a random noise texture that matches somewhat with the galaxy to greatly reduce visual distraction.

I started working on this years ago, but got stuck at some point just not feeling enough momentum to want to clean up all of the artifacts. Finally got through that last week and finished it up. There's a maximum image size of 200MB at Flickr, so this is a 40% resize of the mosaic.

I assembled this mosaic manually, but you can actually download already-assembled mosaic files here from the HLSP page:
archive.stsci.edu/hlsp/phatter

A link to a gigapan is available.

Processing note: Around the edges are places where the image is only two filters rather than all four. Where near-infrared F160W had missing data, it was replaced by F814W data. I applied a Gaussian blur to make it more closely resemble the F160W data. Similarly, where F336W data were missing, I filled those areas with F475W. For that I simply adjusted the curves and added some noise to make the blending nicer. Yes, I actually "degraded" the data in both cases to make it look nicer. In my defense that's way better than faking it, or cutting it off completely.

Red: WFC3/IR F160W
Yellow: ACS/WFC F814W
Cyan: ACS/WFC F475W
Blue: WFC3/UVIS F336W

North is about 75.15° counter-clockwise from up.

Some rights reserved

Taken on: December 9, 2024

Tags:

PHATTER

Triangulum

Hubble

HST

spiral

stars

space

nebula

M33

Messier 33 « less

Sets appears in: • Resolution • all astronomy more » • Hubble Processing • Spirals in Galaxies « less

Groups appears in: • in explore

Stats: 13,728 views / 22 comments

go back

close tools panel

Badge creator

Use Flickriver Badge Creator to create a badge linking to your photos, your group or any other Flickriver view.

You can place your badge on your Flickr profile, Blog or Website.

Add to your iGoogle or Netvibes page

Flickriver widget for iGoogle or Netvibes can display almost any Flickriver view - most interesting today, by user, by group, by tag etc. Once added to your personalized homepage, just edit widget settings to select your desired view.

Clickr on one of the buttons below to install:

Embed on your Web site

To embed this view, Copy and Paste the following HTML code:

Black background (preview):

White background (preview):

Firefox and Chrome addons

Adds a 'Flickriver' button to your browser. While viewing any Flickr photos page, click on this button to open the same view on Flickriver.

Install in Firefox
Install in Chrome

Search plugin

Add 'Search on Flickriver' to your browser's search box. Works with Firefox and Internet Explorer. Install search plugin

"View on Flickriver" Greasemonkey script

A Greasemonkey script that adds Flickriver links to various Flickr photo pages - user photos, favorites, pools etc, allowing to quickly open the corresponding Flickriver view.

Also, allows quickly viewing any Flickr photo on black background in large size.

Install "View on Flickriver" script

Bookmarklet

While viewing any Flickr photos page, click on the bookmarklet to open the same view on Flickriver.

To install: drag and drop the following link to your Bookmarks toolbar.
IE users - add the link to your Favorites under the Links folder