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Re: Found images: 2017 October
Posted: Wed Oct 18, 2017 11:04 am
by starsurfer
geckzilla wrote:Ann wrote:geckzilla wrote:That's the kind of thing I'm expecting from Tabby's star, eventually... just a very, very lucky alignment of an unusual disk. Another amazing image from ALMA.
You think Tabby's star is young enough to still have a disk? Or it has a disk even if it isn't young?
Probably not a full disk. Just something like the outer section, here, but probably even less organized. We've seen disks in incredible detail now, but finer detail exists still, I'm sure. As it stands, we see them as smooth and regular. Here is an example of a disk that is asymmetrical. It's hard to say if it's also bumpy, but it might be. A clumped, irregular, asymmetrical disk could cause bizarre drops in brightness if it just so happens to cross our line of sight.
Searching for Tabby's Star comes up with
some interesting
images.
![Laughing :lol2:](./images/smilies/asterisk_laugh.gif)
Re: Found images: 2017 October
Posted: Wed Oct 18, 2017 11:06 am
by starsurfer
NGC 891 and Abell 347
http://www.astrobin.com/298555/
Copyright: Tero Turunen
Re: Found images: 2017 October
Posted: Wed Oct 18, 2017 11:07 am
by starsurfer
Siamese Twins (NGC 4567-8)
http://www.pbase.com/tango33/image/165754656
Copyright: Kfir Simon
This galaxy pair might actually be overlapping and not interacting?
Re: Found images: 2017 October
Posted: Wed Oct 18, 2017 11:09 am
by starsurfer
Re: Found images: 2017 October
Posted: Wed Oct 18, 2017 11:11 am
by starsurfer
Sacred Mushroom Galaxy (ESO 138-29)
http://www.chart32.de/index.php/component/k2/item/129
Copyright: CHART32
Processing: Bernd Flach-Wilken
This interacting galaxy pair really does resemble a mushroom when viewed north up!
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Re: Found images: 2017 October
Posted: Wed Oct 18, 2017 1:24 pm
by Ann
Beautiful image.
Starsurfer, do you know the coordinates of this interacting pair? I haven't been able to find them.
Ann
Re: Found images: 2017 October
Posted: Wed Oct 18, 2017 6:48 pm
by geckzilla
Ann wrote:
Beautiful image.
Starsurfer, do you know the coordinates of this interacting pair? I haven't been able to find them.
Did a quick lookup 17 29 09.57 -62 26 44.1
Re: Found images: 2017 October
Posted: Wed Oct 18, 2017 10:45 pm
by Ann
Thank you, Geck!
Ann
Re: Found images: 2017 October
Posted: Fri Oct 20, 2017 10:35 am
by starsurfer
Re: Found images: 2017 October
Posted: Mon Oct 23, 2017 10:14 am
by starsurfer
Re: Found images: 2017 October
Posted: Mon Oct 23, 2017 10:16 am
by starsurfer
Re: Found images: 2017 October
Posted: Mon Oct 23, 2017 10:21 am
by starsurfer
NGC 7582, NGC 7552 and NGC 7531
http://www.atacama-photographic-observa ... .php?id=92
Copyright: Thierry Demange, Richard Galli and Thomas Petit
Re: Found images: 2017 October
Posted: Mon Oct 23, 2017 10:23 am
by starsurfer
Re: Found images: 2017 October
Posted: Mon Oct 23, 2017 11:06 am
by Hung-Hsuan Yen
When the Big Dipper turns into circumpolar star
Copyright: Hung-Hsuan, YEN
https://www.facebook.com/redscosky/
HEIC: Cosmic Archaeology (WHL J24.3324-8.477)
Posted: Mon Oct 23, 2017 1:30 pm
by bystander
Cosmic Archaeology
ESA Hubble Picture of the Week | 2017 Oct 23
This NASA/ESA Hubble Space Telescope image is chock-full of galaxies — each glowing speck is a different galaxy, bar the bright flash in the middle of the image which is actually a star lying within our own galaxy that just happened to be in the way. At the centre of the image lies something especially interesting, the centre of the massive galaxy cluster called
WHL J24.3324-8.477, including the brightest galaxy of the cluster.
The Universe contains structures on various scales — planets collect around stars, stars collect into galaxies, galaxies collect into groups, and galaxy groups collect into clusters.
Galaxy clusters contain hundreds to thousands of galaxies bound together by gravity.
Dark matter and
dark energy play key roles in the formation and evolution of these clusters, so studying massive galaxy clusters can help scientists to unravel the mysteries of these elusive phenomena.
This infrared image was taken by Hubble’s
Advanced Camera for Surveys and
Wide-Field Camera 3 as part of an observing programme called
RELICS (Reionization Lensing Cluster Survey). RELICS imaged 41 massive galaxy clusters with the aim of finding the brightest distant galaxies for the forthcoming NASA/ESA/CSA James Webb Space Telescope (
JWST) to study. Such research will tell us more about our cosmic origins.
Re: Found images: 2017 October
Posted: Tue Oct 24, 2017 1:25 pm
by starsurfer
North America Nebula (NGC 7000)
http://www.straightontillmorning.me/Ast ... LqghdNv/X3
Copyright: Hytham Abu-Safieh
Re: Found images: 2017 October
Posted: Fri Oct 27, 2017 9:45 am
by starsurfer
Re: Found images: 2017 October
Posted: Fri Oct 27, 2017 9:49 am
by starsurfer
Re: Found images: 2017 October
Posted: Sat Oct 28, 2017 1:20 pm
by starsurfer
Wild Duck Cluster (M11)
http://www.capella-observatory.com/Imag ... dVy1_4.htm
Copyright: Stefan Binnewies and Josef Pöpsel
Re: Found images: 2017 October
Posted: Sun Oct 29, 2017 11:24 am
by starsurfer
Re: Found images: 2017 October
Posted: Sun Oct 29, 2017 12:38 pm
by jaspalchadha
[img]Caph.jpg[/img]
Credit Jaspal Chadha
[img]IC1805[/img]
Credit Jaspal Chadha
[img]Double%20Cluster%20High%20Res%20Jpeg[/img]
Credit Jaspal Chadha
https://www.flickr.com/photos/95267225@N06/
ESO: Antares Overlooking an Auxiliary Telescope
Posted: Mon Oct 30, 2017 3:18 pm
by bystander
Antares Overlooking an Auxiliary Telescope
ESO Picture of the Week | 2017 Oct 30
Brilliant blue stars litter the southern sky and the
galactic bulge of our home galaxy, the Milky Way, hangs serenely above the horizon in this spectacular shot of ESO’s
Paranal Observatory.
This image was taken atop
Cerro Paranal in Chile, home to ESO’s Very Large Telescope (
VLT). In the foreground, the open dome of one of the four 1.8-metre
Auxiliary Telescopes can be seen. The four Auxiliary Telescopes can be utilised together, to form the Very Large Telescope Interferometer (
VLTI).
The plane of the Milky Way is dotted with bright regions of hot gas. The very bright star towards the upper left corner of the frame is
Antares — the brightest star in
Scorpius and the fifteenth brightest star in the night sky.
HEIC: Abell’s Richest Cluster (Abell 665)
Posted: Mon Oct 30, 2017 3:31 pm
by bystander
Abell’s Richest Cluster
ESA Hubble Picture of the Week | 2017 Oct 30
The Universe contains some truly massive objects. Although we are still unsure how such gigantic things come to be, the current leading theory is known as
hierarchical clustering, whereby small clumps of matter collide and merge to grow ever larger. The 14-billion-year history of the Universe has seen the formation of some enormous cosmic structures, including
galaxy groups,
clusters, and
superclusters — the largest known structures in the cosmos!
This particular cluster is called
Abell 665. It was named after its discoverer,
George O. Abell, who included it in his seminal 1958
cluster catalogue. Abell 665 is located in the well-known northern constellation of
Ursa Major (
The Great Bear). This incredible image combines visible and infrared light gathered by the NASA/ESA
Hubble Space Telescope using two of its cameras: the
Advanced Camera for Surveys and the
Wide Field Camera 3.
Abell 665 is the only galaxy cluster in Abell’s entire catalogue to be given a
richness class of 5, indicating that the cluster contains at least 300 individual galaxies. Because of this richness, the cluster has been studied extensively at all
wavelengths, resulting in a number of fascinating discoveries — among other research, Abell 665 has been found to host a giant
radio halo, powerful
shockwaves, and has been used to calculate an updated value for the
Hubble constant (a measure of how fast the Universe is expanding).
Re: Found images: 2017 October
Posted: Tue Oct 31, 2017 9:42 am
by starsurfer
Re: Found images: 2017 October
Posted: Tue Oct 31, 2017 9:45 am
by starsurfer
M39
http://www.capella-observatory.com/Imag ... rs/M39.htm
Copyright: Volker Wendel, Stefan Binnewies and Josef Pöpsel