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341. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... The next step up are true clusters, called open clusters . Open clusters (sometimes misleadingly called "galactic clusters") are groups of stars ranging in size from a few dozen stars up to tens of thousands. ... The youngest is about 1 or 2 million years old, while the oldest is about 6 or 7 billion years, making it just older than our own solar system. ... So by looking at the stars in the cluster we can tell pretty well how old they are. ...
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Ссылки http://www.badastronomy.com/bitesize/openclusters.html -- 20.2 Кб -- 09.04.2016
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342. Phil Plait's Bad Astronomy: Bitesize Astronomy
Blog . ... Bad Astronomy . ... Bulletin Board . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . Search the site . ... RELATED SITES . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... The Snack with a discussion of stellar associations was lost when my last webserver company went out of business. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...
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Ссылки http://www.badastronomy.com/bitesize/associations.html -- 17.5 Кб -- 09.04.2016
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343. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Regular Snackers know that I am a tireless promoter of Hubble Space Telescope (HST) images. ... The 'tute (as those in the know call it) has started a new project to promote lesser known images from HST. The images you see in press releases and around the web are really only a small fraction of the images taken by HST. ... Thus was the Hubble Heritage Project born. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! ...
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Ссылки http://www.badastronomy.com/bitesize/hst_heritage.html -- 18.9 Кб -- 09.04.2016
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344. Phil Plait's Bad Astronomy: What's New 2004
... What's New? Bad Astronomy . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... 2004 | ... The editors at the magazine Scientific American have shown extraordinarily fine taste by choosing "Bad Astronomy" as one of the five best astronomy websites for 2004! ... You can also talk about the show in real time on the Bad Astronomy Bulletin Board. ... She decided to write one about my efforts here at Bad Astronomy Central, and it's a very flattering one indeed! ...
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Ссылки http://www.badastronomy.com/whatsnew/whatsnew2004.html -- 41.9 Кб -- 09.04.2016
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345. Phil Plait's Bad Astronomy: What's New
... What's New? Bad Astronomy . ... 2003 | ... After some unresolvable issues with my webhost, I decided to move the Bad Astronomy website to a new host. ... I added a new book to the Bad Astronomy Bookstore: The Universe: 365 Days , which is now one of my very favorite astronomy books. ... I have moved the website to a new server, which should provide faster access, and the ability for me to do some fun things in the near future, like redo the Bad Astronomy Newsletter and add other features. ...
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Ссылки http://www.badastronomy.com/whatsnew/whatsnew2003.html -- 48.8 Кб -- 09.04.2016
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346. Phil Plait's Bad Astronomy: What's New
... What's New? Bad Astronomy . ... 2002 | ... I just finished an interview on National Public Radio about the Moon Hoax. ... The show aired live but is archived on their website . ... ALERT : Moon Hoax advocate and astronaut irritant Bart Sibrel will be mocked mercilessly on the TV show "The Daily Show", a program that satirizes the news and is well-known for skewering cranks, kooks and weirdos. ... A Bad Astronomy Two-fer! ... January 9, 2002 : I have started a Bad Astronomy email newsletter! ...
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Ссылки http://www.badastronomy.com/whatsnew/whatsnew2002.html -- 37.7 Кб -- 09.04.2016
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347. Phil Plait's Bad Astronomy: What's New
... What's New? Bad Astronomy . ... 2001 | ... November 8, 2001 (2): I was interviewed on TechTV November 8th about this very website. ... November 1, 2001 : An article of mine about aurorae was just placed on the FAZ website (in English). ... August 7, 2001 BAD ASTRO ALERT! ... June 29, 2001: A new book about Hubble images by astronomer Mark Voit has been added to the Bad Astronomy Recommended Reading list . ... Also, a new Bad News article gives you two Bad Astronomy bits for the price of one. ...
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Ссылки http://www.badastronomy.com/whatsnew/whatsnew2001.html -- 33.3 Кб -- 09.04.2016
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348. Phil Plait's Bad Astronomy: What's New
... What's New? Bad Astronomy . ... Site Info . ... 2000 | ... December 21,2000: . ... The article quotes me and mentions the Bad Astronomy site ! ... Yes, that is indeed an ad you see at the top of every page of this site. ... The magazine Popular Science picked Bad Astronomy as one of their top 5 Eclectic Science sites on the (entire!) web in the October 2000 issue. ... I have added new pages (including 1999 and 2000 to my Mad Science pages), and plan on adding new sections as time goes on. ...
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Ссылки http://www.badastronomy.com/whatsnew/whatsnew2000.html -- 32.1 Кб -- 09.04.2016
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349. Phil Plait's Bad Astronomy: What's New
... What's New? Bad Astronomy . ... News . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... 1999 . New Site Additions . September 23, 1999: The Autumnal Equinox happened at 11:31 Greenwich Time (7:31 a.m. Eastern US time) on September 23. ... September 16, 1999: The NASA Funding Saga . ... September 10, 1999: Interview With The Bad Astronomer . ... New movie reviews (since May 1999): . ...
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Ссылки http://www.badastronomy.com/whatsnew/whatsnew1999.html -- 19.8 Кб -- 09.04.2016
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350. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... When Venus is on the far side of the Sun, we see the entire near side lit by the Sun. ... When it is on the near side of the Sun, it shows a beautiful thin crescent, because it is between us and the Sun and we see the mostly unlit dark half. ... To see this for yourself, draw a circle one centimeter across, then, next to it, draw a circle 6 centimeters across. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/venus_phase.html -- 19.8 Кб -- 09.04.2016
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351. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. Hey, it's either this or one of those really irritating PayPal donation buttons here. ... That is the fancy term for the bending of light as it goes from one medium, like air, through another, like water. ... One of the jobs I was hired to do was to calibrate these filters; that is, to check and make sure they are letting through the right amount and color of light. ...
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Ссылки http://www.badastronomy.com/bitesize/stis_filter.html -- 20.3 Кб -- 09.04.2016
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352. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/saturnrings.html -- 19.9 Кб -- 09.04.2016
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353. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... The Nine Planets . ... The Sun stays at the center and the planets orbit it serenely, each in its place. ... Tiny Pluto, orbiting the Sun an average of nearly 40 times the Earth's orbital radius, has an odd orbit. Most planets orbit the Sun in nearly perfect circles, but Pluto's orbit is noticeably elliptical. ... The orbits of Pluto and Neptune have a coincidental timing to them: Pluto orbits the Sun twice for every three times Neptune does. ...
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Ссылки http://www.badastronomy.com/bitesize/pluto_cross.html -- 22.7 Кб -- 09.04.2016
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354. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... NOTE (November 2000): This Bitesize Snack is the last one for some time. ... We've all seen the images from Hubble, and heard the scientists and politicians talk about it. You've even heard me talk about it many times . ... NASA has many more telescopes planned for launch after Hubble has served out its duty, but Hubble will always be remembered as the one that brought astronomy home. 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! ...
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Ссылки http://www.badastronomy.com/bitesize/hubbletenth.html -- 21.2 Кб -- 09.04.2016
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355. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Here's a fun one: how far has the Hubble Space Telescope (HST) traveled since launch? ... Since then, it has orbited the Earth at a velocity of 30,000 kilometers an hour, going once around the Earth every 90 minutes or so. That adds up! 30,000 km/hr is about 700,000 kilometers in a day, 5 million kilometers a week, 260 million or so a year. ... Of course, since HST orbits the Earth, it really hasn't gone anywhere at all. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/hstdistance.html -- 18.6 Кб -- 09.04.2016
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356. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... This time, for the next few weeks, I invite you to take a look at the Universe In Motion . ... The only motions we see easily are the rising and setting of the Sun, Moon and stars, but that is a reflection of our own Earth's rotation. ... We see many supernova nebulae in the sky, but perhaps none is more famous than the Crab Nebula. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/crab_pulsar.html -- 22.3 Кб -- 09.04.2016
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357. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... This time, for the next few weeks, I invite you to take a look at the Universe In Motion . ... The only motions we see easily are the rising and setting of the Sun, Moon and stars, but that is a reflection of our own Earth's rotation. ... The Crab Nebula is one such supernova remnant, and the nebula we see is the what's left of the tremendous explosion that spelled doom for the star...
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Ссылки http://www.badastronomy.com/bitesize/crab_expand.html -- 23.2 Кб -- 09.04.2016
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358. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Universe Today . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Gravity is the force that reaches across countless trillions of kilometers and sculpts the galaxy into a ball. This happens because both electromagnetism and gravity behave in similar manners. They are radial forces (that is, they work in a way that points to the source) and both drop in strength with distance in the same way. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/atomgravity.html -- 19.8 Кб -- 09.04.2016
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359. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Site Info . ... Week of January 5, 1998 . ... After I posted this on Monday, the launch of the Lunar Prospector was delayed until Tuesday, January 6 at 9:28 p.m. Eastern (2:28 GMT). ... On January 5th at 01:32 GMT (8:32 p.m. Eastern Time) the U.S. starts again: the Lunar Prospector will be launched. ... The Lunar Prospector website is loaded with useful info about the Moon, the probe and what the project hopes to accomplish. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/prospector.html -- 18.4 Кб -- 09.04.2016
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360. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... The perfect shape, according to him, was the circle, and since obviously the Earth did not move, the Sun (and hence the other planets too) must orbit the Earth in circles. ... He wanted to predict the positions of the planets and the Sun days or even months in advance, and found that a simple circular orbit for the Sun and planets around the Earth wasn't doing a good enough job. ... It meant that sometimes the Earth was closer to the Sun than other times!...
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Ссылки http://www.badastronomy.com/bitesize/perihelion.html -- 20.2 Кб -- 09.04.2016
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