The M81 Galaxy Group Through the Integrated Flux Nebula
Credit & Copyright: Jordi Gallego
Posted on 05/12/2008 3:06:14 PM PDT by sig226
Explanation: Large galaxies and faint nebula highlight this deep image of the M81 Group of galaxies. First and foremost in the above wide-angle 12-hour exposure is the grand design spiral galaxy M81, the largest galaxy visible in the image. M81 is gravitationally interacting with M82 just below it, a big galaxy with an unusual halo of filamentary red-glowing gas. Around the image many other galaxies from the M81 Group of galaxies can be seen. Together with other galaxy congregates including our Local Group of galaxies and the Virgo Cluster of galaxies, the M81 Group is part of the expansive Virgo Supercluster of Galaxies. This whole galaxy menagerie is seen through the faint nebular glow of the Integrated Flux Nebula, a little studied complex of diffuse gas and dust clouds in our Milky Way Galaxy.
nice one. thanks.
I simply don’t have a clue how we get these kinds of pictures.
Don't ask anyone around here , you will get a technical answer that will take the enjoyment away .
Check out the stacked images of Mars in retrograde. Yesterday's APOD, iirc.
surperb photography
"The Earth is a very small stage in a vast cosmic arena." - Carl Sagan
Thank you!
Certainly is humbling
These M objects were catalogued so they wouldn’t be confused with comets which is what they were actually looking for. Even 100 years ago it was not realized that these objects were outside the Milky Way and are galaxies in their own right. Binoculars are good enough to see most of the M objects if the night sky is any good.
"This group of galaxies [M81] is one of the nearest to our Local Group, being only some 12 million light-years distant, according to 1993 measurements of the Hubble Space Telescope under the direction of Wendy Freedman of the Carnegie Institution of Washington by measuring the periods of 32 Cepheid variables in M81 with the pre-repair Wide Field/Planetary Camera (WFPC I), and corrected for Hipparcos results."
It's all faked up in some Hollywood studio, just like the moon landings.
Bump.
All those galaxies, all those solar systems, all those planets. Must be hundreds of them.
What I’d like to is a picture like this with all the stars from our galaxy filtered out so all you see is the other galaxies. I bet that would be impressive.
It's all faked up in some Hollywood studio, just like the moon landings.
Shhhhh.
It’s not ‘faked’, but these pic are filtered, and filtered, and filtered, etc., etc., etc., then enhanced, and enhanced, and enhanced, etc., etc., etc.,...then colorized, and colorized, and colorized, etc., etc., etc...See it’s easy...Sometime what you see is NOT what you see.
Mountains of technology.
They usually superimpose several images so they can filter them for different aspects, then add color based on the source of the light. If you follow the link to the NASA page, there is usually a link to somewhere that explains how they made the picture. You won't see any of this stuff if you look through a telescope, but it's beautiful and the science behind it is sound.
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