Search found 15 matches

by skyhound
Wed Jun 29, 2016 8:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Jupiter's Clouds from New Horizons (2016 Jun 26)
Replies: 33
Views: 11126

Re: APOD: Jupiter's Clouds from New Horizons (2016 Jun 26)

So I just found this NASA App that displays Juno in real time, which is cool. As a bonus, Jupiter is rendered with the proper shape.

https://eyes.nasa.gov/eyes-on-juno.html
by skyhound
Wed Jun 29, 2016 5:46 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Jupiter's Clouds from New Horizons (2016 Jun 26)
Replies: 33
Views: 11126

Re: APOD: Jupiter's Clouds from New Horizons (2016 Jun 26)

I have to apologize for somehow posting my comment to the wrong APOD. I meant it for the Juno Mission Trailer on June 28. Chris, I have rendered Jupiter from many different distances and perspectives, and you'd have to go to extremes for the lack of obtateness not to be obvious once you learn to loo...
by skyhound
Tue Jun 28, 2016 11:08 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Jupiter's Clouds from New Horizons (2016 Jun 26)
Replies: 33
Views: 11126

Re: APOD: Jupiter's Clouds from New Horizons (2016 Jun 26)

Am I the only one who looks at renderings of Jupiter like this and thinks, "Wrong, wrong, wrong?" (measures Jupiter on screen both ways) Jupiter is not a sphere. It is flattened at the poles to a numerically small, but distinguishable degree. When you consider the calculations that go into...
by skyhound
Fri Jul 10, 2015 2:05 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: 5 Million Miles from Pluto (2015 Jul 09)
Replies: 41
Views: 4775

Re: APOD: 5 Million Miles from Pluto (2015 Jul 09)

This is something I know quite a bit about, having once worked in the capacity of doing image processing for a spacecraft team. I stand by my comments. That makes two of us, then, except I just do image processing as an obsessive hobby. Would I have done this picture differently as well? Probably, ...
by skyhound
Thu Jul 09, 2015 4:12 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: 5 Million Miles from Pluto (2015 Jul 09)
Replies: 41
Views: 4775

Re: APOD: 5 Million Miles from Pluto (2015 Jul 09)

Wow. A lot of negative reactions to my comments, most of them predictable. Of course one can simultaneously enjoy New Horizons and criticize the way the images are being processed. This is something I know quite a bit about, having once worked in the capacity of doing image processing for a spacecra...
by skyhound
Thu Jul 09, 2015 5:40 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: 5 Million Miles from Pluto (2015 Jul 09)
Replies: 41
Views: 4775

Re: APOD: 5 Million Miles from Pluto (2015 Jul 09)

Sadly, this image is over processed and over magnified. Processing should never obscure detail that is present in the original image. If you look at the shaded region to the right of the darker area, which runs diagonally from the upper left to the lower right, and compare it to the same area in the...
by skyhound
Tue Feb 21, 2012 8:31 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A Message From Earth (2012 Feb 19)
Replies: 35
Views: 7066

Re: APOD: A Message From Earth (2012 Feb 19)

"They say" that everything anyone ever said is still out there resounding in the atmosphere. But can we still hear it? No. Can we hope to build a machine that could detect what was said a thousand years ago above the noise? No. This message is just like those sounds. By the time it reache...
by skyhound
Mon Feb 20, 2012 2:35 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A Message From Earth (2012 Feb 19)
Replies: 35
Views: 7066

Re: APOD: A Message From Earth (2012 Feb 19)

"They say" that everything anyone ever said is still out there resounding in the atmosphere. But can we still hear it? No. Can we hope to build a machine that could detect what was said a thousand years ago above the noise? No. This message is just like those sounds. By the time it reached...
by skyhound
Sun Feb 06, 2011 7:28 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: An Anomalous SETI Signal (2011 Feb 06)
Replies: 44
Views: 6095

Re: APOD: An Anomalous SETI Signal (2011 Feb 06)

Ann is exactly right. The primary assumption of SETI is that an extraterrestrial intelligence is intentionally beaming a very strong signal right at us and that it is either from a nearby star or a very , very strong signal. I have no problem with this. But I do have a problem with SETI researchers ...
by skyhound
Sun Jan 23, 2011 7:46 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Peekskill Fireball Video: Johnstown (2011 Jan 23)
Replies: 28
Views: 4576

Re: APOD: Peekskill Fireball Video: Johnstown (2011 Jan 23)

I agree with Chris (for once) that there is every reason to expect meteorites to be at ambient temperature when they hit the ground. As far as touching it goes, it is my understanding that the scientific value of many "just arrived" meteorites is higher if they have not been handled. What ...
by skyhound
Wed Jan 27, 2010 4:50 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Watch Jupiter Rotate (2010 Jan 24)
Replies: 19
Views: 3977

Re: Watch Jupiter Rotate (2010 Jan 24)

bystander wrote:
skyhound wrote:Thanks for fixing my account.
You are quite welcome. Welcome aboard. Am I correct in assuming you are The Skyhound?
Yes, that's me.
by skyhound
Wed Jan 27, 2010 4:48 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Watch Jupiter Rotate (2010 Jan 24)
Replies: 19
Views: 3977

Re: Watch Jupiter Rotate (2010 Jan 24)

I did the same thing except I tried with both a "perfect" (I'm not sure vector-based circles are actually 100% perfect) and an oblate circle and got different results. I could easily be fooling myself but the "perfect" circle seems to fit better. The poles seem a little off cent...
by skyhound
Wed Jan 27, 2010 3:24 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Watch Jupiter Rotate (2010 Jan 24)
Replies: 19
Views: 3977

Re: Watch Jupiter Rotate (2010 Jan 24)

wiki sais: Equatorial radius 11.209 Earths Polar radius 10.517 Earths - do you really expect 11.2:10.5 to give it "appearance of an egg standing on end"? Just look at the rotation movie we are discussing. As I said, the reason it looks elongated in the vertical direction is because of the...
by skyhound
Wed Jan 27, 2010 6:36 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Watch Jupiter Rotate (2010 Jan 24)
Replies: 19
Views: 3977

Re: Watch Jupiter Rotate (2010 Jan 24)

What really gets me is that when they re-assembled the images they forced Jupiter to be round, which it definitely isn't. When you add in the effect of the slight phase this gives Jupiter the appearance of an egg standing on end. Making Jupiter round is a common mistake. I see it in computer generat...