Search found 45 matches

by moontrail
Fri Apr 12, 2019 7:50 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: First Horizon-Scale Image of a Black... (2019 Apr 11)
Replies: 128
Views: 51808

Re: APOD: First Horizon-Scale Image of a Black... (2019 Apr 11)

Are there any schemes depicting this black hole, its spinning axis, the disk accretion and our relative position to them? Is the black hole spinnig causing the disk accretion configuration instead of a spherical one. Thanks in advance.
by moontrail
Tue Apr 24, 2018 10:24 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: TESS Launch Close Up (2018 Apr 21)
Replies: 29
Views: 114411

Re: APOD: TESS Launch Close Up (2018 Apr 21)

With Explorer 11 the image just posted in the quoted one can not be seen!
by moontrail
Tue Apr 24, 2018 7:35 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Play Saturn's Rings Like a Harp (2018 Apr 24)
Replies: 34
Views: 93805

Re: APOD: Play Saturn's Rings Like a Harp (2018 Apr 24)

aljo wrote: Tue Apr 24, 2018 6:57 am I can get the spacecraft to move, but I don't hear any sound! No problem on other videos, so not my computer at fault.
In my computer it doesn't work whith the explorer 11 versión, not even the saturn rings are shown just a starred sky. It works OK with Crome.
by moontrail
Thu Apr 12, 2018 7:46 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Fortuitous Flash Candidate for the... (2018 Apr 11)
Replies: 32
Views: 59574

Re: APOD: Fortuitous Flash Candidate for the... (2018 Apr 11)

Neufer calculates that this star is (was?) 14.523 Gigalight years away. It is 14.5 Gly distant. It was 5.8 Gly distant from our point in space when the currently observed light was produced. It took that light 9.5 Gyr to travel between the two points, because the Universe was expanding between them...
by moontrail
Wed Apr 11, 2018 11:02 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Fortuitous Flash Candidate for the... (2018 Apr 11)
Replies: 32
Views: 59574

Re: APOD: Fortuitous Flash Candidate for the... (2018 Apr 11)

moontrail wrote: Wed Apr 11, 2018 10:58 am In the explanation given I miss the info about how far it`s supossed to be.
Supposed, I suppose :)
by moontrail
Wed Apr 11, 2018 10:58 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Fortuitous Flash Candidate for the... (2018 Apr 11)
Replies: 32
Views: 59574

Re: APOD: Fortuitous Flash Candidate for the... (2018 Apr 11)

In the explanation given I miss the info about how far it`s supossed to be.
by moontrail
Tue Feb 27, 2018 12:56 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Apollo 17: A Stereo View from Lunar... (2018 Feb 23)
Replies: 17
Views: 34416

Re: APOD: Apollo 17: A Stereo View from Lunar... (2018 Feb 23)

The interesting thing I noticed is that the Command Module is at a lower altitude than the Lander. I had always assumed the landing approach would be a descent only. Did the descent profile include an altitude gain, or alternatively, did the Command Module move to a lower altitude for some reason? ...
by moontrail
Wed Jan 03, 2018 8:22 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Unexpected X-Rays from Perseus... (2018 Jan 02)
Replies: 26
Views: 16067

Re: APOD: Unexpected X-Rays from Perseus... (2018 Jan 02)

Maybe the explanation would be more readable in a two columns format. It's difficult for me sometimes to read it in the one column format.... There have been previous suggestions to update the APOD page code, in part for exactly this reason, to make it more readable on a greater variety of screens ...
by moontrail
Tue Jan 02, 2018 10:21 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Unexpected X-Rays from Perseus... (2018 Jan 02)
Replies: 26
Views: 16067

Re: APOD: Unexpected X-Rays from Perseus... (2018 Jan 02)

Maybe the explanation would be more readable in a two columns format. It's difficult for me sometimes to read it in the one column format.

Happy New Year to all earthlings and best wishes for all, aliens included!
by moontrail
Tue Nov 28, 2017 8:43 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Juno Spots a Complex Storm on Jupiter (2017 Nov 28)
Replies: 5
Views: 5318

Re: APOD: Juno Spots a Complex Storm on Jupiter (2017 Nov 28)

We should call it the "Pelican Storm", or "The Boot" storm...as it looks like a Pelican, or Boot, to the right side of it...as your Pareidolia wills. The WHOLE THING is complex!!!! Sheesh.... Can't wait for Orion Nebula next, as I recently took some photos.... :---[===] * I see ...
by moontrail
Thu Oct 19, 2017 9:04 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Haumea of the Outer Solar System (2017 Oct 17)
Replies: 28
Views: 11134

Re: APOD: Haumea of the Outer Solar System (2017 Oct 17)

I miss in the lovely animation both earth and moon orbiting the center of masses of its binary system instead of moon just circling earth. We wouldn't be able to see it at this scale. The distance from the Earth to the Moon is about 380 000 km. The Earth-Moon barycenter is less than 5 000 km from t...
by moontrail
Wed Oct 18, 2017 7:59 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Haumea of the Outer Solar System (2017 Oct 17)
Replies: 28
Views: 11134

Re: APOD: Haumea of the Outer Solar System (2017 Oct 17)

I miss in the lovely animation both earth and moon orbiting the center of masses of its binary system instead of moon just circling earth.
Ignacio
by moontrail
Wed Apr 05, 2017 10:07 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: 3D 67P (2017 Mar 31)
Replies: 11
Views: 3665

Re: APOD: 3D 67P (2017 Mar 31)

In my opinion, the vertical axis appear exaggerated, or the horizontal axis appear reduced, or the equivalent mix of both, in the same proportion as the distance between the places where the two photographs were taken to the distance between our eyes. Thanks so much Chris! Two questions: is the ver...
by moontrail
Mon Apr 03, 2017 8:32 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: 3D 67P (2017 Mar 31)
Replies: 11
Views: 3665

Re: APOD: 3D 67P (2017 Mar 31)

In my opinion, the vertical axis appear exaggerated, or the horizontal axis appear reduced, or the equivalent mix of both, in the same proportion as the distance between the places where the two photographs were taken to the distance between our eyes. Crossed-eye stereo pair for those who prefer a m...
by moontrail
Wed Jun 15, 2016 8:26 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: GW151226: A Second Confirmed Source ... (2016 Jun 15)
Replies: 51
Views: 11379

Re: APOD: APOD Placeholder (2016 Jun 15)

I agree. Regarding Europe's local times is even worse. No new APOD today till evening.
by moontrail
Tue May 10, 2016 9:14 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Mercury's Transit: An Unusual Spot... (2016 May 08)
Replies: 9
Views: 3428

Re: APOD: Mercury's Transit: An Unusual Spot... (2016 May 08)

Zooming the original image http://apod.nasa.gov/apod/image/1605/Me ... r_1200.jpg a big white spot is clearly visible on Mercury.

Zooming the included http://apod.nasa.gov/apod/ap160508.html the white spot is not there.
by moontrail
Mon May 09, 2016 7:55 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Mercury's Transit: An Unusual Spot... (2016 May 08)
Replies: 9
Views: 3428

Re: APOD: Mercury's Transit: An Unusual Spot... (2016 May 08)

Zooming the image a big white spot is clearly visible on Mercury.
by moontrail
Mon Jan 25, 2016 9:01 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Big Dipper, Deep Sky (2016 Jan 23)
Replies: 18
Views: 7041

Re: APOD: Big Dipper, Deep Sky (2016 Jan 23)

I miss it were also mentioned as Ursa Major, the Great Bear.
by moontrail
Thu Jul 02, 2015 9:25 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Astronomie Ballet
Replies: 2
Views: 805

Re: Astronomie Ballet

ASTRONOMIE (Astronomy), 1968 Ballet by Milko Sparembeck With a narrative by Carole Sosnowsky And featuring Nanon Thibon and Cyril Atanassof, principal dancers of the Paris Opera Music by Pierre Henry Sculptures by Nicholas Sch6ffer Somewhere in the cosmos, a marvellous enigmatic star rotates, rotate...
by moontrail
Wed Jun 24, 2015 8:44 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Astronomie Ballet
Replies: 2
Views: 805

Astronomie Ballet

I apologize not being able to find in the web the complete and better resolution image version of this short-tv-film enjoyed at a public exhibition (Arstronomy at La Casa Encendida in Madrid). I found it astounding.
Ignacio
http://asterisk.apod.com/posting.php?mode=post&f=8
by moontrail
Wed Mar 11, 2015 9:46 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Aurora over Icelandic Glacier (2015 Mar 10)
Replies: 10
Views: 3221

Re: APOD: Aurora over Icelandic Glacier (2015 Mar 10)

Thank you geckzilla for the explanation, if I understood it right there is an unintended sensor saturation effect that causes the difference with what would be expected.
by moontrail
Wed Mar 11, 2015 8:36 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Aurora over Icelandic Glacier (2015 Mar 10)
Replies: 10
Views: 3221

Re: APOD: Aurora over Icelandic Glacier (2015 Mar 10)

Water reflected stars seem more bright than directly seen in the sky. Is it just an optical illusion based in the contrast with the foreground or image post process?
by moontrail
Tue Nov 11, 2014 9:40 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Protoplanetary Disk of HL Tauri... (2014 Nov 10)
Replies: 62
Views: 66530

Re: APOD: The Protoplanetary Disk of HL Tauri... (2014 Nov 1

Can somebody help put a scale to this photo? The description just states it can resolve details as small as 40 light minutes. But 40 light minutes is ~720 million KM, or just shy of where Jupiter orbits. Does that mean the innermost dark band is approximately where Jupiter would orbit? Here is a pi...