Found Images: 2014 May

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bystander
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Found Images: 2014 May

Post by bystander » Thu May 01, 2014 11:04 pm


Have you seen a great image or video somewhere that you think would make a great APOD? Nominate it for APOD! Please post as much information here as you have about the image/video with a link to any source(s) for it you know of here, and the editors will take a look.

When posting the image itself, please do not post anything larger than a thumbnail here; please honor the copyright holder's copyright.

Please keep hotlinked images under 400K.

Thank you!


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Re: Found Images: 2014 April

Post by starsurfer » Fri May 02, 2014 10:59 am

NGC 1360
http://www.capella-observatory.com/Imag ... GC1360.htm
Copyright: Dietmar Böcker, Ernst von Voigt, Stefan Binnewies and Josef Pöpsel
NGC1360.jpg

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Re: Found Images: 2014 May

Post by starsurfer » Mon May 05, 2014 11:18 am

Jökulsarlon Aurora
https://www.flickr.com/photos/astro-tanja/11312930186/
Copyright: Tanja Sund
11312930186_679ae404cb_h.jpg

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Re: Found Images: 2014 May

Post by starsurfer » Tue May 06, 2014 7:04 am

IC 51
https://www.flickr.com/photos/geckzilla/9861534214/
Copyright: Hubble Legacy Archive/NASA/ESA
Processing: Judy Schmidt This very strange galaxy is also catalogued as Arp 230 and is similar to Centaurus A in that it appears to be a merger between an elliptical and a spiral galaxy and also exhibits outer tidal shells.

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Ann
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Re: Found Images: 2014 May

Post by Ann » Tue May 06, 2014 3:22 pm

Adam Block has uploaded a new galaxy picture, NGC 4395.

NGC 4395 is a vigorously starforming galaxy with very large, bright blue clusters and associations. In spite of all the new stars, however, NGC 4395 doesn't have any very bright or very obvious emission nebulas, so my impression is that that the starburst here is coming to an end. The galaxy has a faint bulge and a tiny nucleus, suggesting that it used to be a small, faint and unremarkable galaxy before it turned on its present remarkable fireworks. In fact, according to this paper NGC 4395 doesn't even have a bulge! Nevertheless, the galaxy has a black hole at its center.
http://en.wikipedia.org/wiki/NGC_4395 wrote:
The nucleus of NGC 4395 is active and the galaxy is classified as a Seyfert. It is notable for containing one of the smallest supermassive black hole with an accurately-determined mass.[3] The central black hole has a mass of "only" 300,000 sun masses,[4] which would make it a so-called "intermediate-mass black hole".
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alcarreño
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Re: Found Images: 2014 May

Post by alcarreño » Tue May 06, 2014 7:48 pm

Otra mas.

Esta vez le toca a ARP 273
Image
ARP 273 por astrocentejo, en Flickr

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Re: Found Images: 2014 May

Post by starsurfer » Wed May 07, 2014 7:42 am

Ann wrote:Adam Block has uploaded a new galaxy picture, NGC 4395.

NGC 4395 is a vigorously starforming galaxy with very large, bright blue clusters and associations. In spite of all the new stars, however, NGC 4395 doesn't have any very bright or very obvious emission nebulas, so my impression is that that the starburst here is coming to an end. The galaxy has a faint bulge and a tiny nucleus, suggesting that it used to be a small, faint and unremarkable galaxy before it turned on its present remarkable fireworks. In fact, according to this paper NGC 4395 doesn't even have a bulge! Nevertheless, the galaxy has a black hole at its center.
http://en.wikipedia.org/wiki/NGC_4395 wrote:
The nucleus of NGC 4395 is active and the galaxy is classified as a Seyfert. It is notable for containing one of the smallest supermassive black hole with an accurately-determined mass.[3] The central black hole has a mass of "only" 300,000 sun masses,[4] which would make it a so-called "intermediate-mass black hole".
Ann
I was quite surprised to see this imaged by Adam Block!! However, it has plenty of emission nebulae but are only visible with Ha exposures. See this paper for more info: http://iopscience.iop.org/0004-637X/515/1/97/
Also I think Adam Block will have images of many interesting galaxies coming up soon! Can't wait!!! :shock: :lol2: :D

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Re: Found Images: 2014 May

Post by starsurfer » Wed May 07, 2014 7:55 am

IC 348 region
http://downthewormhole.blogspot.co.uk/2 ... e-tex.html
Copyright: John Davis
IC348.jpg
IC 348 is the small blue nebula with an associated cluster near the left edge. The large pink nebula is Ced 18a and the dark nebula in front of it is B3. The medium sized blue reflection nebula near the right side is NGC 1333, the smaller yellow one at right edge is vdB12 and the smaller blue one below it is vdB13.

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Re: Found Images: 2014 May

Post by pisto92 » Wed May 07, 2014 8:12 am

M63 Sunflower Galaxy
http://www.astrobin.com/94809/B/
Copyright: Andrea Pistocchini
Strange transit of ISS
http://www.astrobin.com/93227/
Copyright: Andrea Pistocchini

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Re: Found Images: 2014 May

Post by pisto92 » Wed May 07, 2014 8:37 am

Comet C/2012 K1 Panstarrs
http://www.astrobin.com/94922/
Copyright: Andrea Pistocchini
http://cdn.astrobin.com/images/thumbs/3 ... ermark.jpg
Last edited by owlice on Sat Jun 07, 2014 1:31 pm, edited 1 time in total.
Reason: Removed img tags; please do not hotlink images over 400K

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Re: Found Images: 2014 May

Post by bystander » Wed May 07, 2014 10:12 pm

Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

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Re: Found Images: 2014 May

Post by bystander » Wed May 07, 2014 10:15 pm

Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

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Re: Found Images: 2014 May

Post by starsurfer » Thu May 08, 2014 7:36 am

I really want to see a HaLRGB composite image of this by an amateur astrophotographer, which would show an amazing ionized outflow structure similar to the one associated with M82.

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Re: Found Images: 2014 May

Post by starsurfer » Thu May 08, 2014 7:38 am

NGC 1344
http://www.astrodonimaging.com/gallery/ ... ?imgID=268
Copyright: Don Goldman This is one of the first few shell elliptical galaxies to be identified more than 30 years ago.

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Re: Found Images: 2014 May

Post by bystander » Thu May 08, 2014 9:35 pm

starsurfer wrote:
I really want to see a HaLRGB composite image of this by an amateur astrophotographer, which would show an amazing ionized outflow structure similar to the one associated with M82.
geckzilla ??? Not an astrophotographer but she does wonders with Hubble data.
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

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Re: Found Images: 2014 May

Post by geckzilla » Thu May 08, 2014 10:10 pm

Unfortunately, there's no H-alpha data available in the Hubble archive for this. If there were, that HEIC image would already have it included. Our best bet is to have one of the astrophotographers image it.
Just call me "geck" because "zilla" is like a last name.

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Re: Found Images: 2014 May

Post by Ann » Fri May 09, 2014 1:50 am

Note the interesting distribution of stellar populations in NGC 4605. One third of the galaxy is mostly green, one third is blue, and one third is yellow. Also, the yellow and the blue parts of the galaxy have very similar surface brightnesses. You may not be able to tell the surface brightness distribution of a galaxy from a typical photo, since many astrophotographs are "tweaked" so that the brightest parts are "turned down" a bit, while fainter parts are amped up. (Amateurs are not always able to do this, and therefore they sometimes produce "truer" portraits of the surface brightness of galaxies. Check out this amateur photograph of M100, showing the galaxy's bright center and faint arms.) James D Wray, in his Color Atlas of Galaxies, never tried to change the surface brightness distribution of the galaxies he photographed, and some of his galaxy portraits look very different from what we are used to. But when he photographed NGC 4605, the galaxy looked almost equally bright "all over".

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Re: Found Images: 2014 May

Post by starsurfer » Fri May 09, 2014 11:21 am

bystander wrote:
starsurfer wrote:
I really want to see a HaLRGB composite image of this by an amateur astrophotographer, which would show an amazing ionized outflow structure similar to the one associated with M82.
geckzilla ??? Not an astrophotographer but she does wonders with Hubble data.
Nah not geckzilla, someone like Ken Crawford or Adam Block!

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Re: Found Images: 2014 May

Post by starsurfer » Fri May 09, 2014 11:33 am

NGC 1999
http://www.astrophoto.com/N1999LRGB.htm
Copyright: Tony Hallas
N1999.jpg

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Re: Found Images: 2014 May

Post by starsurfer » Mon May 12, 2014 5:23 pm

Sh2-284
http://www.noao.edu/image_gallery/html/im1177.html
Copyright: T.A. Rector (University of Alaska Anchorage) and WIYN
sh2-284.jpg

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Re: Found Images: 2014 May

Post by starsurfer » Tue May 13, 2014 10:11 am


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Re: Found Images: 2014 May

Post by starsurfer » Wed May 14, 2014 9:22 pm

Pinwheel Galaxy (M101)
http://www.karelteuwen.be/photo_page.ph ... 7&album=14
Copyright: Karel Teuwen
M101.jpg

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Re: Found Images: 2014 May

Post by starsurfer » Thu May 15, 2014 10:45 am

LDN 1251
http://www.starpointing.com/ccd/ldn1251.html
Copyright: Fabian Neyer
ldn1251.jpg

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Re: Found Images: 2014 May

Post by geckzilla » Thu May 15, 2014 6:03 pm

Image from 2007 but I do not remember seeing it before.

PIA08393: Rainbow on the Rings
NASA/JPL/Space Science Institute
http://photojournal.jpl.nasa.gov/catalog/pia08393
PIA08393.jpg
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Re: Found Images: 2014 May

Post by bystander » Thu May 15, 2014 6:14 pm

Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

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