Starship Asterisk*

Hi! Regarding the posted details from Ann of SY Tau (infrared annotated.png). A little above the star there is a tiny round structure visible. It this an artifact or could it be a real structure, like a very distant planetary nebulae? http://asterisk.apod.com/download/file.php?id=46925&sid=3ec27...

Would it be possible to make a "deep field" in visible light of this region? The idea behind is not to find more details in the barnard cloud, but try to find every object between the cloud and the earth. So we may get some brown dwarfs here, some runaway planets maybe.

Best regards,
Stefan

* The black hole does not have a block hole with a billion times the mass of the sun, it is just 55 million sun masses. (https://arxiv.org/abs/0812.1000). If you want an introduction to the structure of Centaurus A I suggest looking an my video: ** https://de.wikipedia.org/wiki/Datei:Centaurus_A_EN....

Hi, I also flattened this Helix nebulae disk: https://drive.google.com/file/d/1vAtvzpeNDHVMSSItZVznq3ROAyBRDfq-/view Here you see the symmetry of the northwest and sourtheast plume as two similar hills in this flatten view. Every radial structure is now just plain vertical. And you see wonderfully t...

Hi Ann!

Thanks for uploading the image to apod directly.
I still hope that I can understand the dynamics of the spiral arms sometimes.

Best regards,
Stefan

Hi all, I did also some unwinding of different other galaxies. I posted it a year ago here: https://asterisk.apod.com/viewtopic.php?f=8&t=39558&p=293173#p293173 And here is my collection of unwinded spiral galaxies and also some planetary nebulae: https://drive.google.com/drive/folders/1IS1d...

Wonderful galaxy! One of my new favorites. Mass of the central black hole according to this paper (2015, https://arxiv.org/pdf/1508.02664.pdf, page 13): "The mean BH mass is (5.3 ± 2.9) × 10^6" sun masses. So it is a lighter than NGC 1300's BH. Milky way has 4,1 x 10^6 sun masses. (Edit: W...

Wonderful galaxy, one of my favorites. The picture of the galaxy was the front page of the "Galaxies" book from Timothey Ferris from 1983 ... long time ago. 8-) @FLPPhotoCatcher: M83 seems also to have a litte bar in it like the Milky Way. Here is a constructed view from above of the Milky...

Are you also annoyed of these winded spiral galaxies? Every spiral arm just warps around the center and it is difficulty to follow or compare the spiral arms. :D So I just to try to unwind them and I think the results are worth to be looked at. Let's have a look here at M74: This is the original pic...