Search found 61 matches

by distefanom
Mon Feb 11, 2019 11:37 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: New Data: Ultima Thule Surprisingly Flat (2019 Feb 11)
Replies: 49
Views: 11369

Re: APOD: New Data: Ultima Thule Surprisingly Flat (2019 Feb 11)

If the spin axis is as shown, could this be not two objects coming together but one that is spinning apart? John they should have two objects spinning *already in sinc* in such a way (opposite each other?) that when they did collide (at the almost same rotational speed?), they haven't destroyed eac...
by distefanom
Mon Feb 11, 2019 8:04 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: New Data: Ultima Thule Surprisingly Flat (2019 Feb 11)
Replies: 49
Views: 11369

Re: APOD: New Data: Ultima Thule Surprisingly Flat (2019 Feb 11)

It's incredible what's out there... I wonder if in a computer simulation, this result can be obtained in any way... Talking of things that happen in the universe, have complete different meaning... At first I thought: the passage of New Horizon was SO IN SINC with Ultimathule so we've seen the faces...
by distefanom
Sun Feb 10, 2019 3:44 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Venus Unveiled (2019 Feb 10)
Replies: 17
Views: 3195

Re: APOD: Venus Unveiled (2019 Feb 10)

Hi Ann, you quoted from Wiki: "the lack of evidence for plate tectonics on Venus, possibly because its crust is too strong to subduct without water to make it less viscous." can we *really* suppose that the oceans can "softer" the Earth's crust so it can subduct ? Oceans on Earth...
by distefanom
Sun Feb 10, 2019 11:08 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Venus Unveiled (2019 Feb 10)
Replies: 17
Views: 3195

Re: APOD: Venus Unveiled (2019 Feb 10)

Hi,
do Venus has surface activity? I think to Vulcan, lava flows and maybe even tectonic movements?
I think, because it's similar in size to earth, that it should have some activity of this kind...

If no...WHY do Earth has such activity? What's the difference from our planet and Venus & Mars?
by distefanom
Mon Jan 28, 2019 8:00 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Long Gas Tail of Spiral Galaxy D100 (2019 Jan 28)
Replies: 19
Views: 3417

Re: APOD: The Long Gas Tail of Spiral Galaxy D100 (2019 Jan 28)

To me it looks like a jet, being violently ejected by energetic processes in the galaxy's core. Apparently that is not the case. The explanation in the caption is good enough. APOD Robot wrote: The red path connects to the center of D100 because the outer gas, gravitationally held less strongly, ha...
by distefanom
Mon Dec 10, 2018 8:27 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Sound and Light Captured by Mars InSight (2018 Dec 10)
Replies: 14
Views: 2602

Re: APOD: Sound and Light Captured by Mars InSight (2018 Dec 10)

...anyone noticed that the SKY colours are OPPOSITE than on Earth? During day, the sky is (usually) blue on Earth, white-Orange on Mars... at DAWN COLORS we have pink-orange on Earth, white-blue on Mars??? On Earth: https://scienzenotizie.it/wp-content/uploads/2015/11/alba.jpg On Mars: https://www.l...
by distefanom
Mon Dec 10, 2018 7:57 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Sound and Light Captured by Mars InSight (2018 Dec 10)
Replies: 14
Views: 2602

Re: APOD: Sound and Light Captured by Mars InSight (2018 Dec 10)

...already covered with DUST ?? :? :?
(not too much, of course, but it's already there!)
:shock:
by distefanom
Wed Oct 31, 2018 6:58 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: R Leporis: A Vampire's Star (2018 Oct 31)
Replies: 15
Views: 2994

Re: APOD: R Leporis: A Vampire's Star (2018 Oct 31)

I wonder, how would be the sky color on a hypothetical hearth-like planet, orbiting around such a star...
by distefanom
Mon Apr 16, 2018 8:22 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Flyover of Jupiter's North Pole in... (2018 Apr 16)
Replies: 11
Views: 45019

Re: APOD: Flyover of Jupiter's North Pole in... (2018 Apr 16)

Hi JohnD, My point was on the thing to use the temperature shown as "height", non to the shortness of the video; which I agree with you. For me, "colder" won't mean necessarily "higher" using the common sense. That's why I think altimeter data would have had more meanin...
by distefanom
Mon Apr 16, 2018 6:07 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Flyover of Jupiter's North Pole in... (2018 Apr 16)
Replies: 11
Views: 45019

Re: APOD: Flyover of Jupiter's North Pole in... (2018 Apr 16)

Sincerely I cannot quite understand the purpose of this little video. Sure, the presentation is really dramatic, only thinking at the size of the features can be seen. But I disagree to see the temperature differences as height and show them as "mountains". Maybe altimeter data (dunno if i...
by distefanom
Mon Mar 19, 2018 7:45 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Nebra Sky Disk (2018 Mar 19)
Replies: 25
Views: 62107

Re: APOD: The Nebra Sky Disk (2018 Mar 19)

what if it was from the high priests cassock or apron., does the double rings on the left signify sirius.? Yes, Claude, I agree with you. I think this not an astronomical instrument: I think, as a fixed object (stars can't move), it's usefulness would be only for certain year periods. Seeing the pl...
by distefanom
Sun Mar 11, 2018 7:38 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Dual Particle Beams in Herbig-Haro 24 (2018 Mar 11)
Replies: 19
Views: 59260

Re: APOD: Duel Particle Beams in Herbig-Haro 24 (2018 Mar 11)

Trying to "read" what this image shows to my eyes, I can see the "lightsaber" that can be explained by the in falling matter into the protostar. Also the funnel-shaped "cloud" of dust that "rains" into the obscured dust, seems reasonable. I cannot explain, ins...
by distefanom
Wed Feb 28, 2018 10:42 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Dueling Bands in the Night (2018 Feb 27)
Replies: 15
Views: 30229

Re: APOD: Dueling Bands in the Night (2018 Feb 27)

The sky portion of the image is beautiful, but I had the same issue with the star reflections in the water. There is nothing in the water that appears to correspond to the star patterns in the sky, star brightness notwithstanding. What am I missing about the principle of reflection? Maybe the "...
by distefanom
Tue Feb 27, 2018 10:14 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Dueling Bands in the Night (2018 Feb 27)
Replies: 15
Views: 30229

Re: APOD: Dueling Bands in the Night (2018 Feb 27)

Do someone noticed that the reflected lights, of the sky, which appear in the water (even thou a bit blurred), did not correspond to any part of the sky ?
Why?
Maybe photo-editing?
by distefanom
Wed Jan 24, 2018 4:07 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: An Immersive Visualization of the... (2018 Jan 22)
Replies: 18
Views: 9871

Re: APOD: An Immersive Visualization of the... (2018 Jan 22)

Ciao Chris, Also to OriEri, nope, it's not the operating system, it's the browser. I tested this solution, with chrome and firefox browser's: it's the same native plugin. it works this way: 1) open a new tab in browser (any: I tested with chrome and firefox it's the same) 2) type in the URL bar http...
by distefanom
Wed Jan 24, 2018 3:53 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Tadpoles of IC 410 (2018 Jan 24)
Replies: 8
Views: 14733

Re: APOD: The Tadpoles of IC 410 (2018 Jan 24)

It's striking & surprising how in 1969, in the movie: 2001 a Space Odissey
in the well known final slitscan scene, Kubrick reproduced this scene in *real time* at the end of he's wonderful movie!!!
have a look at the two attached images... astonishing!!!
by distefanom
Mon Jan 22, 2018 6:40 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: An Immersive Visualization of the... (2018 Jan 22)
Replies: 18
Views: 9871

Re: APOD: An Immersive Visualization of the... (2018 Jan 22)

Hi Chris, Maybe that's the problem: My browser shows the video as two screens one over the other with distorted prospective. Nothing more. I cannot move/see the image in any direction Chris, if you say that you can pan left-right and up-down, I think I don't have the right browser plugin. But, when ...
by distefanom
Mon Jan 22, 2018 7:20 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: An Immersive Visualization of the... (2018 Jan 22)
Replies: 18
Views: 9871

Re: APOD: An Immersive Visualization of the... (2018 Jan 22)

Probably I'm really the dumbest here, So I *CANNOT* realize in my mind what I'm seeing (also happening) in this video. Or probably i's clear only the movie author's mind... A 360°view... for me it's like to pretend to have a clear idea of the surroundings, staring through the windscreen AND the back...
by distefanom
Tue Jan 09, 2018 3:46 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Bright Planetary Nebula NGC 7027... (2018 Jan 09)
Replies: 230
Views: 151195

Re: APOD: Bright Planetary Nebula NGC 7027... (2018 Jan 09)

When I see images of these so-called planetary nebulas, I have many questions on what we are seeing trough the images, the interpretation we can give and what's happening in reality. I think, since nobody ever witnessed an exploding star, having enough documentation, i.e. time lapse imaging... how c...
by distefanom
Sun Jan 07, 2018 12:24 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A Tether in Space (2018 Jan 07)
Replies: 21
Views: 30247

Re: APOD: A Tether in Space (2018 Jan 07)

I ever wondered why, this kind of scientific investigations (Tethered satellites), NEVER have had a "sequel" of any kind.... Also, even if I'm not prone to the so called cospiration theories, I wonder why this experiment has been readily spread as "unsuccessful" and stopped. I.e....
by distefanom
Thu Jan 04, 2018 10:47 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: M1: The Incredible Expanding Crab (2018 Jan 04)
Replies: 14
Views: 9310

Re: APOD: M1: The Incredible Expanding Crab (2018 Jan 04)

Each time i see this image, I wonder the visual-meaning of the ripples and the stone-in-the-pond effect we see into the movie. I refer to the "waves" we see in the gas around the pulsar... I sometimes explained it to myself (as a rookie) like "waves of density" of the expanding g...
by distefanom
Fri Dec 29, 2017 2:31 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Sally's Stars: Split from APOD: Stardust in Aries (2017 Dec 09)
Replies: 27
Views: 52034

Re: APOD: Stardust in Aries (2017 Dec 09)

Hi sallyseaver
Even thou I don't like direct word fighting, I found your arguments strikingly interesting...
Way too complex to manage to an uneducated mind like mine, but I'll try to dig down the few references you gave, hopefully not getting lost :lol2:
ciao
Mario