Base to peak ratios are influenced by the material composition of the feature and gravitational constant of the moon or planet it is located on.Nitpicker wrote:... Not sure what a base-to-peak ratio is.
Search found 229 matches
- Wed May 07, 2014 1:37 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Curiosity Inspects Mt Remarkable on Mars (2014 May 07)
- Replies: 43
- Views: 20855
Re: APOD: Curiosity Inspects Mt Remarkable on Mars (2014 May
- Tue May 06, 2014 12:19 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Orange Sun Sparking (2014 May 06)
- Replies: 30
- Views: 18350
Re: APOD: Orange Sun Sparking (2014 May 06)
BDanielMayfield wrote:Limb brightening is caused by limb darkening?
Emphasis added...APOD Robot wrote: wrote:...Hydrogen Alpha, inverted, and false colored...
- Thu May 01, 2014 9:46 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Brisbane Sunset Moonset (2014 May 01)
- Replies: 21
- Views: 4351
Re: APOD: Brisbane Sunset Moonset (2014 May 01)
Holy photons, Batman. The Universe is practically made of shadows. Shadows, what dark matter is all about. :wink: Turns out dark matter is just one big bug in the system where a mass object continues invisibly on its trajectory in place of were a photon was absorbed / ended. Biggest memory leak eve...
- Thu Apr 10, 2014 3:48 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Mars, Ceres, Vesta (2014 Apr 10)
- Replies: 19
- Views: 5124
Re: APOD: Mars, Ceres, Vesta (2014 Apr 10)
Okay, speaking of math, and the Dawn spacecraft, I have a very basic orbital mechanics question. Actually, I'm not wanting the equations, just the qualitative description. Let's say I'm the Dawn spacecraft and I'm orbiting the Sun, a little ways in front of or behind the Earth, but in an identical ...
- Tue Mar 25, 2014 2:21 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Orion Nebula in Surrounding Dust (2014 Mar 25)
- Replies: 19
- Views: 4046
Re: APOD: Orion Nebula in Surrounding Dust (2014 Mar 25)
Another beautiful image, thank you Robert Fields. It sort of brings you toe to toe with the vastness of it all. ...Wonder how much glade or endust would be required to clear all that dust??? :lol2: :lol2: There must have been one heck of an environmental impact study to gain approval for releasing t...
- Mon Mar 24, 2014 1:15 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The View Near a Black Hole (2014 Mar 23)
- Replies: 24
- Views: 4603
Re: APOD: The View Near a Black Hole (2014 Mar 23)
The artist seems to be depicting the invisible gravity well of the black hole as opposed to an actual visual representation. The eye is poised dangerously close to certain destruction in this image. Be careful, you may fall in. The image invokes the “feeling” of being near a black hole if not the ac...
- Thu Mar 20, 2014 4:53 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Solargraphy Analemmas (2014 Mar 20)
- Replies: 22
- Views: 5041
Re: APOD: Solargraphy Analemmas (2014 Mar 20)
Oh, I totally get doing this and have been itching to do something like this for a while. Creating a solar calendar on the north wall of our foyer was vetoed by the wife so… The photographer’s web site says fewer people have captured the analemma than have walked on the moon. That is a bonus. But ju...
- Wed Mar 19, 2014 9:16 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Equinox on a Spinning Earth (2014 Mar 19)
- Replies: 37
- Views: 16007
Re: APOD: Equinox on a Spinning Earth (2014 Mar 19)
WAIT! I thought this was an art discussion forum, my bad!Anthony Barreiro wrote:If this were an art theory discussion board and I were the moderator, my finger would be itching over the delete button.
![Laughing :lol2:](./images/smilies/asterisk_laugh.gif)
- Wed Mar 19, 2014 6:20 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Equinox on a Spinning Earth (2014 Mar 19)
- Replies: 37
- Views: 16007
Re: APOD: Equinox on a Spinning Earth (2014 Mar 19)
Chris Peterson wrote:Yup.FloridaMike wrote:The Mona Lisa and Flight of the Valkyries is just our feeble attempt to interpret nature in different ways?
I think you are confusing one of the things that art does with a definition of what art is.
- Wed Mar 19, 2014 3:18 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Equinox on a Spinning Earth (2014 Mar 19)
- Replies: 37
- Views: 16007
Re: APOD: Equinox on a Spinning Earth (2014 Mar 19)
It took a second for my brain to adjust to the image, but what a unique perspective! I love it how we can extract art from the cold logic of science and technology. Humans are great. "Cold logic of science and technology"? Rubbish. More like spirit warming beauty. Art is just our feeble a...
- Wed Mar 19, 2014 1:14 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Equinox on a Spinning Earth (2014 Mar 19)
- Replies: 37
- Views: 16007
Re: APOD: Equinox on a Spinning Earth (2014 Mar 19)
It took a second for my brain to adjust to the image, but what a unique perspective! I love it how we can extract art from the cold logic of science and technology. Humans are great.
- Mon Mar 17, 2014 8:53 pm
- Forum: The Communications Center: Breaking Science News
- Topic: Cosmic Inflation and Gravity Waves
- Replies: 40
- Views: 36168
Re: Cosmic Inflation and Gravity Waves
If this holds up, it's HUGE!!! :shock: :D :clap: Huge. And not so much. I find it interesting, but not all that exciting... I guess because there is so much indirect evidence, that this new information doesn't really change much. Huge was the discovery of the CMB. Huge is any discovery that changes...
- Mon Mar 17, 2014 6:07 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Apollo 17 VIP Site Anaglyph (2014 Mar 15)
- Replies: 25
- Views: 6025
Re: APOD: Apollo 17 VIP Site Anaglyph (2014 Mar 15)
From an astrological perspective, Harrison Schmitt, as a Cancer born July 3rd, 1935, is the only human so far to set foot on his ruling planet - the Moon. First, the Moon is not a planet. Then, why do you, apparently an astrologer, come to an astronomer's messageboard, if not to proslytise? I fear ...
- Tue Mar 11, 2014 5:11 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: In the Heart of the Rosette Nebula (2014 Mar 11)
- Replies: 18
- Views: 3633
Re: APOD: In the Heart of the Rosette Nebula (2014 Mar 11)
I love the way these static images reveal the dynamic nature of the universe.
- Thu Mar 06, 2014 1:40 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 1333 Stardust (2014 Mar 06)
- Replies: 14
- Views: 4087
Re: APOD: NGC 1333 Stardust (2014 Mar 06)
I propose the name "Heaven and Hell Nebula" for this region of space. The bright blue reflection nebula exudes the beauty and glory associated with Heaven. The juxtaposition with the dark smoky swirling knot complete with orange embers evokes a dark and foreboding place.
- Fri Feb 28, 2014 2:10 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Mobius Arch Moonrise (2014 Feb 28)
- Replies: 10
- Views: 9261
Re: APOD: Mobius Arch Moonrise (2014 Feb 28)
I never saw this before. A complete address with the final quote 'planet Earth'. May be we need to included that in our address and possibly another final quote: 'Milky Way galaxy'... You skipped a few addresses, most notably the star system. For the moment and foreseeable future the address is ful...
- Sun Feb 16, 2014 9:02 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Inside the Eagle Nebula (2014 Feb 16)
- Replies: 33
- Views: 10646
Re: APOD: Inside the Eagle Nebula (2014 Feb 16)
I just pulled up the comments on the APOD Facebook page for the first time today. I had to immediately come here to say thank you to everyone who contributes.
- Fri Feb 14, 2014 5:49 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: IC 1805: Light from the Heart (2014 Feb 14)
- Replies: 31
- Views: 11127
Re: APOD: IC 1805: Light from the Heart (2014 Feb 14)
Yes, we are awaiting the return of V'ger to confirm this.jsanchezjr wrote:.... we also know without a doubt how is our galaxy when we can watched from the outside, sure, if ever possible.
- Wed Feb 05, 2014 8:49 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 2683: Edge On Spiral Galaxy (2014 Feb 05)
- Replies: 37
- Views: 9109
Re: APOD: NGC 2683: Edge On Spiral Galaxy (2014 Feb 05)
To a tumbleweed, the entire universe tumbles....
- Wed Feb 05, 2014 6:12 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 2683: Edge On Spiral Galaxy (2014 Feb 05)
- Replies: 37
- Views: 9109
Re: APOD: NGC 2683: Edge On Spiral Galaxy (2014 Feb 05)
http://apod.nasa.gov/apod/calendar/S_140205.jpg NGC 2683: Edge On Spiral Galaxy Explanation: Does spiral galaxy NGC 2683 have a bar across its center? Being so nearly like our own barred Milky Way Galaxy , one might guess it has. Being so nearly edge-on, however, it is hard to tell ..... If we can ...
- Wed Jan 22, 2014 12:59 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Upper Michigan Blizzard of 1938 (2014 Jan 22)
- Replies: 41
- Views: 17514
Re: APOD: The Upper Michigan Blizzard of 1938 (2014 Jan 22)
There's a natural tendency to think of those snow covered poles as being very similar to the 30' to 40' towers we use today, but it may not be so. I recall, back in the 50s and 60s, driving along rural roads where the poles were only about 12' high. That's still quite a drift, but not as dramatic a...
- Tue Jan 21, 2014 1:30 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Micro Moon over Super Moon (2014 Jan 21)
- Replies: 53
- Views: 11479
- Fri Jan 17, 2014 1:53 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: M83 Star Streams (2014 Jan 17)
- Replies: 16
- Views: 4552
Re: APOD: M83 Star Streams (2014 Jan 17)
The northern tidal tail seems positively chock full of galaxy shaped objects. Some appear edge on, some face on in appearance. These objects seem to be in much greater proportion here than in the surrounding space. Is this attributed to a different data set in this area? What are we looking at here?...
- Wed Jan 08, 2014 6:32 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Sunspot at Sunset (2014 Jan 08)
- Replies: 35
- Views: 7872
Re: APOD: Sunspot at Sunset (2014 Jan 08)
http://i.imgur.com/n2PEyWw.gif Animated gif of the sunset on Jan 5 from my backyard in Brisbane, seen through smoky bushfire haze. Great work. I'd love to do something like that. Is the reddened tree shadow the most distant of three trees between the camera and the sun? The red effect is unexpected.
- Wed Jan 08, 2014 2:53 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Sunspot at Sunset (2014 Jan 08)
- Replies: 35
- Views: 7872
Re: APOD: Sunspot at Sunset (2014 Jan 08)
The approaching geomagnetic storm is predicted to be a “G3” in intensity. Does anyone have an idea on what the intensity would have to be for us to see auroras as far south as Florida?