Starship Asterisk*

I am confused when they picture the one-armed Large Magellanic Cloud Galaxy as a victim of the tidal forces from the Milky Way Galaxy or the Small Magellanic Cloud Galaxy. Because you see the tidal forces are bilateral. For example our Earth has one high tide under the moon and another high tide 12 ...

Well, I also like the comparison with NGC 4449, where you can clearly see that the center of the LMC is drifting out of the middle. I would assume that it is being "sucked out" by the Milky Way :wink: https://live.staticflickr.com/65535/54039426489_a7da7648ae_b.jpg https://live.staticflic...

Christian G. wrote: ↑Wed Oct 02, 2024 12:14 pm if the LMC has a central bar but only one arm coming out of it, what happens at the other end of the bar? Do Magellanians believe this is where the world ends?

I wonder if Tarantula Nebula is what's left of the LMC's lost arm

The auroral glow is caused by emission from excited oxygen atoms in the extremely rarefied upper atmosphere still present at the level of the orbiting outpost. So, the ISS is actually embedded within the aurora I suppose, in addition to being able to see it while looking through a long enough colum...

thanks!

another attempt to make the low sun redder

New Red = Old Red + Old Green - Old Blue
New Green = -0.3 Old Red + Old Green + 0.3 Old Blue

the link won't open

The supernova remnant G295.5+09.7 is estimated to be between 7,000 and 10,000 years old. The distance of this remnant is somewhere between 4,000 and 13,000 light years from Earth. It contains the pulsar PSR J1210-5226 (yellow circle). https://live.staticflickr.com/65535/54003923134_eaa8397349_b.jpg...

The supernova remnant G295.5+09.7 is estimated to be between 7,000 and 10,000 years old. The distance of this remnant is somewhere between 4,000 and 13,000 light years from Earth. It contains the pulsar PSR J1210-5226 (yellow circle). https://live.staticflickr.com/65535/54003923134_eaa8397349_b.jpg...

another attempt to make the low sun redder

1) dim the Green and Blue channels with .5 factor
2) deepen the Red channel with ɣ = .3
3) rise the saturation by .08

was the disk of the sun above the skyline?
was the disk of the sun scarlet rather than yellow?
was the window in the tower much narrower than the bright spot we see?

Perhaps the impacting object had broken up shortly before striking Mercury, similarly as did that asteroid that struck Jupiter? Only the Mercury object broke into two pieces (one larger than the other) and they were not far apart from each other when striking the surface causing the 2 impact featur...

I remember when, at 10, found out that my classmates did not see the face in the moon that I had thought was evident to everybody and I could not refer to the eye at right to explain a landing site. Now I think that my eyesight was somewhat poor and it mattered. The face I recognize now as my old re...

AVAO wrote: ↑Sun Sep 01, 2024 7:51 pm

Click to view full size image 1 or image 2

Bonus: The stem of the rose Credit: NASA/ESA (HERSCHEL)

far infrared?
The wavelengths that Herschel Space Observatory registered were 55 to 672 μm

Ann wrote: ↑Sat Aug 31, 2024 6:33 am it's hard to say where the NGC 7771 star streams end and the Milky Way Integrated Flux Nebula begins
Ann

I wonder if the red shift from 200 millions ly away can help

I find it interesting that in the last link is this bit: https://www.nasa.gov/centers-and-facilities/goddard/nasas-fermi-telescope-discovers-first-gamma-ray-only-pulsar/#:~:text=The%20instrument%20sees%20about%20one%20gamma%20ray%20every%20minute Fermi’s Large Area Telescope scans the entire sky ev...

Of course, we see our own galaxy exactly edge on, so that we see many layers of dust features superimposed on one another. In Andromeda, we see the dust features separately. Is that why the dust lane of the Milky Way appears to be thicker than the dust features of Andromeda? And is that why we see ...

Of course, we see our own galaxy exactly edge on, so that we see many layers of dust features superimposed on one another. In Andromeda, we see the dust features separately. Is that why the dust lane of the Milky Way appears to be thicker than the dust features of Andromeda? And is that why we see ...

So how is the incoming direction determined, to specify that "bright spot"? The Large Area Telescope (LAT) detects individual gamma rays… The LAT's field of view is large, about 20% of the sky. The resolution of its images is modest by astronomical standards, a few arc minutes for the hig...

The blue background that fills the image is the diffuse glow of gamma-rays from distant sources that are too dim to be detected individually. To my eye lighter regions of the blue background in the ɣ map by 12 years of Fermi satellite correlates to amber regions of the brown background in the X-ray...

https://apod.nasa.gov/apod/calendar/S_240819.jpg IC 5146: The Cocoon Nebula Explanation: Inside the Cocoon Nebula is a newly developing cluster of stars. Cataloged as IC 5146 , the beautiful nebula is nearly 15 light-year s wide. Soaring high in northern summer night skies , it's located some 4,000...

Thank you, Ann for a very good presentation and an interesting website. However it, like all other depiction of the local region of our galaxy, does not translate the information into a depiction of the sky as you see it when you walk outside on a dark moonless night. Translating those 3-4000 visib...

The second law of thermodynamics says that the entropy of a system is always increasing, and so eventually everything will be in a state of max disorder and "evenly mixed", but looking scenes like the Triffid Nebula (estimated age 300,000 years) it's difficult to imagine that the universe...

johnnydeep wrote: ↑Tue Aug 13, 2024 9:32 pm Be sure to click on the "top of the frame" link to see the close-up inset view of the jet from here https://www.flickr.com/photos/frankie57pr/53877835585/

Click to view full size image

no violet stars…