Search found 319 matches

by Psnarf
Fri May 30, 2014 5:45 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Nix Spitzer?!
Replies: 0
Views: 190

Nix Spitzer?!

http://www.nature.com/news/nasa-might-n ... rs-1.15289

Where do I sign up to volunteer for converting that data? I'd set up a Spitzer@Home server for distributed data conversion. Maybe build a supercomputer out of hundreds of Raspberry Pi boards?
by Psnarf
Fri May 30, 2014 4:26 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Planetary Nebula Abell 36 (2014 May 30)
Replies: 22
Views: 10356

Re: APOD: Planetary Nebula Abell 36 (2014 May 30)

Doctor Adam Block created that image with a 32" telescope? LRGB = 7:3:3:3 I don't know what that means. The grayish haze is probably the result of high-altitude dust. Tucson had some rip-snorting wind storms blowing in from Texas last month, 50mph+ gusts and all. Could be high altitude smoke fr...
by Psnarf
Tue May 27, 2014 2:08 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Factory Messier 17 (2014 May 27)
Replies: 19
Views: 3727

Re: APOD: Star Factory Messier 17 (2014 May 27)

Approximately how many stars are generating the stellar winds and radiation that energize the visible nebula? 44-Trillion miles is quite a distance for energized particles to travel in order to knock electrons off of some interstellar clouds. (assuming a 7.5 light-year radius)
by Psnarf
Thu May 22, 2014 3:23 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A Halo for NGC 6164 (2014 May 22)
Replies: 38
Views: 11788

Re: APOD: A Halo for NGC 6164 (2014 May 22)

What is the radius of the faint halo cloud? More than eight light years? The referenced article in the referenced APOD link, http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985PASP...97..780F&link_type=ARTICLE&db_key=AST&high= describes distances from the star in parsecs. The o...
by Psnarf
Thu May 22, 2014 3:06 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Meteors, Planes, and a Galaxy over... (2014 May 19)
Replies: 24
Views: 7645

Re: APOD: Meteors, Planes, and a Galaxy over... (2014 May 19

Is one who uses the term Oriontated an Oriontater? Can one make fries from an Oriontater, or O'tater salad? Sez here Oriontaters taste best when picked while Orion is directly overhead.
by Psnarf
Mon May 19, 2014 4:43 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Meteors, Planes, and a Galaxy over... (2014 May 19)
Replies: 24
Views: 7645

Re: APOD: Meteors, Planes, and a Galaxy over... (2014 May 19

Definitely well worth the wind chill exposure! Trying to get orientated, if orientated is the word for which I'm searching, on the horizon, is that Humphrey's Peak right of center? The glow on either side would be Flagstaff? The faint glow to the left, between the pillar and tree, could that be Phoe...
by Psnarf
Mon May 19, 2014 4:29 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Jupiter's Great Red Spot from Voyager 1 (2014 May 18)
Replies: 13
Views: 6675

Re: APOD: Jupiter's Great Red Spot from Voyager 1 (2014 May

Boy, is my face red. Can't even read my own references. Although the surface pressure is much greater than 1000 bars (A Jovian walks into a thousand bars...forgot how the rest of it goes.), the surface isn't all that dense, contrariwise I. Surface Pressure: >>1000 bars Wind speeds Up to 150 m/s (<30...
by Psnarf
Sun May 18, 2014 6:02 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Jupiter's Great Red Spot from Voyager 1 (2014 May 18)
Replies: 13
Views: 6675

Re: APOD: Jupiter's Great Red Spot from Voyager 1 (2014 May

It is my understanding that Jupiter is composed mostly of hydrogen. Its mass is about 317.8 Earths, or 1.8986×1027 kg. http://nssdc.gsfc.nasa.gov/planetary/factsheet/jupiterfact.html The heat and pressure down below creates metallic hydrogen, a kind of slippery fluid similar to mercury, which genera...
by Psnarf
Sun May 18, 2014 2:30 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Jupiter's Great Red Spot from Voyager 1 (2014 May 18)
Replies: 13
Views: 6675

Re: APOD: Jupiter's Great Red Spot from Voyager 1 (2014 May

Van Gogh "Starry Night"? If you go to the Van Gogh wiki page, there is an image of "Starry Night" 30,000 × 23,756 pixels. https://en.wikipedia.org/wiki/File:Van_Gogh_-_Starry_Night_-_Google_Art_Project.jpg Therein you can zoom into the stars and examine how the paint was applied ...
by Psnarf
Tue May 13, 2014 1:30 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: CG4: A Ruptured Cometary Globule (2014 May 13)
Replies: 35
Views: 12800

Re: APOD: CG4: A Ruptured Cometary Globule (2014 May 13)

Is not that the thing into which Commodore Decker piloted the U.S.S. Constellation?
by Psnarf
Sun May 11, 2014 2:17 pm
Forum: Open Space: Discuss Anything
Topic: Two slits walk into a bar
Replies: 3
Views: 385

Re: Two slits walk into a bar

TRVTH
by Psnarf
Sun May 11, 2014 2:14 pm
Forum: Open Space: Discuss Anything
Topic: The thousand post club
Replies: 786
Views: 418232

Re: The thousand post club

Metric: "a mathematical function that associates a real nonnegative number analogous to distance with each pair of elements in a set such that the number is zero only if the two elements are identical, the number is the same regardless of the order in which the two elements are taken, and the n...
by Psnarf
Sun May 11, 2014 2:03 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Valles Marineris: The Grand Canyon... (2014 May 11)
Replies: 46
Views: 14064

Re: APOD: Valles Marineris: The Grand Canyon... (2014 May 11

In the large image, there are two features left of center that appear to be fractals. It looks to me like something started from the left side, washed down left to right, and settled in that playa on the right edge. You won't trick me into commenting on the giant 'H' above the far left side, nope, d...
by Psnarf
Fri May 09, 2014 7:11 pm
Forum: Open Space: Discuss Anything
Topic: Two slits walk into a bar
Replies: 3
Views: 385

Two slits walk into a bar

Someone put for the proposition that a photon is neither a particle nor a wave, but a cloud of probability amplitudes. The cloud gets as wide as the two slits, then parts of it goes through both slits. The wavelike pattern at the receiver end of the box depends on the time interval to a spot from ea...
by Psnarf
Fri May 09, 2014 6:49 pm
Forum: Open Space: Discuss Anything
Topic: ScienceOpen Q and A
Replies: 10
Views: 594

Re: ScienceOpen Q and A

I once read a paper in the computer science category that described how some programmers in India wrote a program in BASIC. I don't understand how that paper could have appeared in any peer-reviewed journal. Had that paper crossed my desk, I would have reached for my red WD stamp before finishing th...
by Psnarf
Fri May 09, 2014 6:44 pm
Forum: Open Space: Discuss Anything
Topic: The thousand post club
Replies: 786
Views: 418232

Re: The thousand post club

Does not quality trump quantity? Suppose you multiply each post by a number between 0-100 suggesting an arbitrary qualitative judgement, then add them up. I imagine Dr. Neufer would remain near the top, what about the rest? [Disclaimer: This post will not be included in any quantitative or qualitati...
by Psnarf
Fri May 09, 2014 6:37 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Halley Dust and Milky Way (2014 May 09)
Replies: 20
Views: 12037

Re: APOD: Halley Dust and Milky Way (2014 May 09)

Does the fact that Earth plows through the debris trail Halley left behind suggest the possibility, however remote, that the two could meet? As the Earth moves (wasn't that a soap opera?) through the debris, how does that affect the nearby particles? Is there a small stream of particles now followin...
by Psnarf
Wed May 07, 2014 4:48 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: 20237

Re: APOD: Curiosity Inspects Mt Remarkable on Mars (2014 May

Remarkable! Now, where'd I put my copy of Strunk & White? Thesae and peer-reviewed papers conform to the Chicago Manual Of Style, contrawise image blurbs. There be space monkeys inside that mansion! Whatever you do, don't send Rover over (?) to knock on the door. We do not yet understand Martian...
by Psnarf
Wed Apr 23, 2014 3:11 pm
Forum: Open Space: Discuss Anything
Topic: Peep-O-Nauts
Replies: 5
Views: 462

Re: Peep-O-Nauts

Methinks Dr. Fun started the "Save The Peeps" movement. http://www.ibiblio.org/Dave/Dr-Fun/collections/peeporama/peeporama-2.html http://www.ibiblio.org/Dave/ar00512.htm http://www.ibiblio.org/Dave/Dr-Fun/collections/peeporama2003/peeporama2003-3.html There's a lot more in his archive. One...
by Psnarf
Wed Apr 23, 2014 2:29 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Arp 81: 100 Million Years Later (2014 Apr 23)
Replies: 29
Views: 22639

Re: APOD: Arp 81: 100 Million Years Later (2014 Apr 23)

Consider the center of mass of each galaxy connected via a rubber band. If you speed up the clock, you'll see the centers zip past each other until the rubber band is fully stretched, then back again. Off-center, they will not collide during this cosmic dance. Bad analogy, but it's a start. The indi...
by Psnarf
Tue Apr 22, 2014 3:25 pm
Forum: Open Space: Discuss Anything
Topic: Peep-O-Nauts
Replies: 5
Views: 462

Peep-O-Nauts

http://spaceweather.com/archive.php?view=1&day=22&month=04&year=2014 When asked why the Peeps didn't explode, as they oftentimes do when placed in a vacuum desiccator and exposed to a laboratory vacuum (300mb or about 30,000 ft), as they reached the edge of space, I put forth the premise...
by Psnarf
Mon Apr 21, 2014 2:24 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Massive Nearby Spiral Galaxy NGC 2841 (2014 Apr 21)
Replies: 18
Views: 4178

Re: APOD: Massive Nearby Spiral Galaxy NGC 2841 (2014 Apr 21

...how many "people" I am looking at Ahh, the old Fermi Paradox vs Drake Equation ploy! Intelligent critters showed up after some five major extinction events occurring at serendipitous periods of Earth's history. It is difficult to detect all such events because the majority of diversity...
by Psnarf
Mon Apr 21, 2014 1:43 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Massive Nearby Spiral Galaxy NGC 2841 (2014 Apr 21)
Replies: 18
Views: 4178

Re: APOD: Massive Nearby Spiral Galaxy NGC 2841 (2014 Apr 21

plumes of hot gas extending into a halo
The halo is not unresolved stars, but is hot gas from the core?
by Psnarf
Sat Apr 19, 2014 3:28 pm
Forum: Open Space: Discuss Anything
Topic: Chestnut trees
Replies: 16
Views: 4336

Re: Chestnut trees

Is that the technique they use in those chestnut carts that appear on the sidewalks of New York City every winter which inspired the opening line to the "Christmas Song"?
Click to play embedded YouTube video.
by Psnarf
Sat Apr 19, 2014 3:08 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Earth size Kepler 186f (2014 Apr 19)
Replies: 67
Views: 18961

Re: APOD: Earth size Kepler 186f (2014 Apr 19)

We'd better find someplace else very soon, considering the rate at which we are making this planet uninhabitable.