Starship Asterisk*

orin stepanek wrote: ↑Thu Jul 13, 2023 5:01 pm https://webbtelescope.org/contents/medi ... M7EWDE9RSN
STScI-01_RhoOph1024.png
interesting view of RhoOph1024! I like it !

with a pair of mysterious doughnuts
...

https://webbtelescope.org/contents/media/videos/2023/128/01H4YM4EH20F6ZX6M7EWDE9RSN STScI-01_RhoOph1024.png interesting view of RhoOph1024! I like it ! 8-) not without shadows… and protoplanetaries are this way and that shadows 400.jpgshadows 200.jpgshadows 100.jpg shadows2 400.jpg shadows2 200.jpg...

orin stepanek wrote: ↑Thu Jul 13, 2023 5:01 pm https://webbtelescope.org/contents/medi ... M7EWDE9RSN
STScI-01_RhoOph1024.png
interesting view of RhoOph1024! I like it !

not without shadows… and protoplanetaries are this way and that

The picture appears to be about 35 degrees top oblique view of a remarkably circular galaxy. Forces at work are uniform. The explanation, however, makes no sense whatever. It is time to get off the Big Bang, gravity only, black hole paradigm. Can the rotational velocities be measured on this? Askin...

https://asterisk.apod.com/download/file.php?id=47854&t=1 Likely mechanism for creating the red ridge of NGC 6559 This ridge— judging by visible brightness of the likely stellar wind sources — should drift in 2 o'clock direction. I wonder if we know some H-alpha triple peaks somewhere https://im...

skiing across Stickney crater mind the speed limit of 8 m/s unless you feel like launching yourself to an orbit

orin stepanek wrote: ↑Thu Jul 06, 2023 10:09 pm CocoaBeach_BuckMoon_Seeley-201_1100.jpg
Fireworks vs Supermoon! I'll Take Supermoon anytime!

I wonder what is vs what.
If Supermoon is a foreground mass gravi-lensing distant fireworks into short arcs…

Is there any possible way to estimate, to know, or have any inkling at all of where we are in the universe, observable or not? Most likely, the center. Because in three dimensions, any point can be seen as the center. and if there are some hints in the foam of voids and filaments that we are in fac...

Every observer is at the center of their own observable universe, and this would look structurally the same to an observer anywhere in the Universe (including from outside our observable universe). IMHO universe means oikoumene, or home space, or reachable zone. The tools we have reach as far as th...

Why does every depiction of the universe always seem to imply that we are at the center? Would all this look the same to someone living out near the "outer reaches?" Where, exactly are "we"? Every observer is at the center of their own observable universe, and this would look st...

I struggle to understand the description.
the 34 exposures were all in one minute at night?
The blue sky is night sky scattering low Moon's light?

a dip in the relative abundance of sulfur dioxide shown in faint blue

a dip is shown in blue? Or SO₂ is shown in blue?

Photo is gorgeous, but I am puzzled by the very top of it as it appears to be landscape above the cut of the aurora. Just can't figure out how the photo would have been taken to include that. It's just an ordinary panorama, but one taken vertically instead of horizontally. Which we're not used to s...

are M24 and Large Sgr there ? APOD 2 July 2023 lower part annotated.png APOD 2 July 2023 upper part annotated.png Here you are. But I wasn't able to find Sirius. Ann is this dust cloud blocking our view of the other edge of Milky Way's core, opposite to Large Saggitarious Star Cloud? https://asteri...

DracoTrio_TeamOmicron1024.jpg ngc6946e_gendler.jpg So Pretty; yet so far away! Too bad that space travel cannot fathom the distances of these beauties! Don't know if I was born too soon or too late! :bang: if Three Galaxies in Draco is an art object, we might be in the right place to appreciate it....

are M24 and Large Sgr there ?

The process of accretion involves accelerated mass. So it produces gravitational radiation. (Accretion always involves inspiraling matter.) It is the acceleration that matters. Spin a barbell and you produce gravitational radiation, despite the fact that the two masses remain at a fixed distance fr...

... NGC 5985 and NGC 6844 in a split field of view,
similar to astrometric images

Wow.. never imagined there's so many with their paths around Sun that close (relatively) to each other and all planets. We have decent idea about none of the PHA's (ones we have discovered/identified so far) colliding with Earth in next 100 years, I wonder, what's the probability of them hitting ot...

2. Are these GWs directional, like the EM waves emitted by rotation or "lighthouse-like" pulsars that emit radiation along their spin axes? I don't know if there are any directional sources. But most are likely produced by two bodies, and the propagation is substantially on the plane of t...

by the way we are lucky that gravity waves are polarized. If you try the same trick with sound waves, which are not polarized, you fail. Say you pick the acoustic noise in a room by subtracting signals at microphones A and B, then subtracting signals at microphones A and C, and hope to see a correla...

those who learned that the CMB means the cosmic microwave background now face memorizing that the GWB means the gravitational wave background. No detailed map of distinct sources so far, just the total buzz amplitude of 2,4×10⁻¹⁵ at the frequencies about 1/year (that translates to 76 nanoseconds in ...

is there an IR view of M24 and Large Sgr with dust frames half-transparent?

showing how close they are to the disk and to the bulge of the Milky Way

purple (technically, magenta). I agree that calling anti-green colour purple is outdated. Modern smartphones and even large monitors are no longer sRGB, they are UHDTV, which is closer to LMS cones of human retina. sRGB green was in fact lime-green, and so sRGB anti-green was in fact purple-pink. N...

https://asterisk.apod.com/download/file.php?id=47758&t=1 MAVEN's Ultraviolet Mars Image Credit: MAVEN, Laboratory for Atmospheric and Space Physics, Univ. Colorado, NASA APOD Robot wrote: Recorded by the MAVEN spacecraft's Imaging Ultraviolet Spectrograph instrument in July 2022 (left) and Janu...