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#11
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Distant planet judged possibly habitable
On Apr 24, 4:52 pm, wrote:
Distant planet judged possibly habitable Astronomers report finding the most Earth-like planet outside our Solar System to date.http://www.world-science.net While I'm not an astronomer, I find it absolutely amazing how scientists are able to determine a small planet only 50% larger (by their calculations) has an atmospher that contains a surface temp of between 0-104F from 20.5 ly away. I looked on my star charts for Gliese 581 and couldn't even find it. Is this a relatively new found star? Or perhaps it goes by a different nomenclature on my star chart? Or perhaps further, maybe it wasn't deemed an important star because it was a red drawf? That said, I find the red drawf stars to be an interesting phenomena in itself, as they are extremely long lasting stars, with very low luminosities, and it's theorized red drawfs make up the majority of all stars by a rather large margin. ----------------------- On a far sci-fi aside... ironicly or not, this fits in perfectly to the big bug eyed alien theories, as any creature born unto a low light sun would need extra sensitive eyes. However, our sun light on earth (or even normal lighting conditions for humans) would probably be blinding to them. |
#12
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Distant planet judged possibly habitable
HJ Every Beer Bar the guys are straight Go into a Cock Tail bar and you
got big problem Needle Nevada has a Cock Tail Bar that Cactus Saul is its best customer drinking Shirley Temples our of his boots Bert . |
#13
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Distant planet judged possibly habitable
"Charles D. Bohne" wrote in message news:jas133piadj25qtoq0j8om55a5bon9ephb@pasoschwei z.de... On Wed, 25 Apr 2007 18:51:59 -0700, "Hagar" wrote: Never learned that ridiculous lingo, but my all time favorite to this day is: 10-beers. It's never too late to learn something. http://en.wikipedia.org/wiki/Ten-code C. These days they just say: "Book 'em Danno". 10-derly 10-tacles 10-able 10-acious 10-dency 10-derloin 10-dril 10-ement 10-sile 10-nis 10-or 10-se 10-nt 10-ure |
#14
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Distant planet judged possibly habitable
Art Deco wrote:
"Home of the auk fake award really Big Whoppers" Charles D. Bohne wrote: Lt. Gen Bohne On Wed, 25 Apr 2007 18:51:59 -0700, "Hagar" wrote: Never learned that ridiculous lingo, but my all time favorite to this day is: 10-beers. Lt. Gen Bohne It's never too late to learn something. http://en.wikipedia.org/wiki/Ten-code C. Bart Devo Correct: My gay laming crossposting silly nano diaper coffeeboys See: http://www.arthure212.bravepages.com...s/IMG_1447.htm MCP More Crap Please I vote Deco ANUS....AS BEING THE BIGGEST ASSHOLE ON USENET!!! :-) "We can repair them, we have the technology, to remove the alien Gray giant anal probes from their auk clueless asses, bring in the Bookman coffeeboy trained deprober." |
#15
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Distant planet judged possibly habitable
In article . com,
studio wrote: snip I looked on my star charts for Gliese 581 and couldn't even find it. What kind of charts were those? Unless they're quite large-scale and 'deep' I wouldn't expect them to show such a faint star: see below. According to SIMBAD its J2000 position is RA 15:19:27, Dec. -07°43'20". Is this a relatively new found star? No; SIMBAD lists references to it going back to 1926. Of course its planets weren't discovered until fairly recently. Or perhaps it goes by a different nomenclature on my star chart? Could be; among its other designations are HO Librae, BD-7 4003, Wolf 562, and Hipparcos 74995. My "Starry Night Backyard" planetarium program displays it as TYC5594-1093-1. Or perhaps further, maybe it wasn't deemed an important star because it was a red drawf? Most likely because it's too faint to see without a sizable telescope: it's of the eleventh magnitude, a hundred times dimmer than the faintest stars you can see without optical aid. -- Odysseus |
#16
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Distant planet judged possibly habitable
On Apr 27, 5:09 am, Odysseus wrote:
In article . com, studio wrote: I looked on my star charts for Gliese 581 and couldn't even find it. What kind of charts were those? Unless they're quite large-scale and 'deep' I wouldn't expect them to show such a faint star: see below. According to SIMBAD its J2000 position is RA 15:19:27, Dec. -07°43'20". Yes, they apparently aren't exactly the most detailed maps. I can imagine how tricky (if not impossible) it is to represent a 3D universe on a 2D piece of paper. I find even the computer 3D modeling of space a rather difficult thing to manipulate precisely from my amature level. Or perhaps it goes by a different nomenclature on my star chart? Could be; among its other designations are HO Librae, BD-7 4003, Wolf 562, and Hipparcos 74995. My "Starry Night Backyard" planetarium program displays it as TYC5594-1093-1. Don't you just love how 1 star can be called 5,6,7,8 different names? The closest I could come to finding GL-581 on my star map was it's nearest star GL-570 which is about 5.2ly away. And then I can't help but wonder...where's GL-571-2-3-4-5-6-7-8-9? What I'm mainly interested in is the "near stars" within say 200ly. All the known near stars, not some of them. What's frustrating is how all the maps I find on the Internet vary so much because of all these varying designations, or no designation at all because they simply aren't listed. |
#17
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Distant planet judged possibly habitable
In article .com,
studio wrote: snip Don't you just love how 1 star can be called 5,6,7,8 different names? The closest I could come to finding GL-581 on my star map was it's nearest star GL-570 which is about 5.2ly away. And then I can't help but wonder...where's GL-571-2-3-4-5-6-7-8-9? Here's the catalogue, which you can either browse online or download for local searching & manipulation: http://heasarc.gsfc.nasa.gov/W3Browse/star-catalog/cns3.html. What I'm mainly interested in is the "near stars" within say 200ly. All the known near stars, not some of them. Although that's just a tiny chunk of our Galaxy, there are an awful lot of stars in that volume. The hundred nearest known stars are all within about 25 light-years of here. Extrapolating to 200 LY suggests that the list you want would comprise more than 15,000 stars (many of them yet undiscovered at present). The expanded Gliese catalogue linked above ostensibly goes to 25 pc (~80 LY), as of 1991, and contains something like four thousand entries. Here's a grab-bag of less ambitious listings from my bookmark file: http://www.cosmobrain.com/cosmobrain/res/nearstar.html http://www.astro.wisc.edu/~dolan/constellations/extra/nearest.html http://cassfos02.ucsd.edu/public/nearest.html http://www.r-clarke.org.uk/nearest.htm http://antwrp.gsfc.nasa.gov/apod/ap010318.html http://csep10.phys.utk.edu/astr162/lect/distances/nearest.html http://www.astronomynotes.com/tables/tablesc.htm Googling will doubtless find you many more such pages. What's frustrating is how all the maps I find on the Internet vary so much because of all these varying designations, or no designation at all because they simply aren't listed. Simbad is an excellent source for cross-referencing designations: http://simbad.u-strasbg.fr/Simbad -- Odysseus |
#18
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Distant planet judged possibly habitable
On Apr 29, 10:25 pm, Odysseus wrote:
In article .com, studio wrote: What I'm mainly interested in is the "near stars" within say 200ly. All the known near stars, not some of them. Although that's just a tiny chunk of our Galaxy, there are an awful lot of stars in that volume. The hundred nearest known stars are all within about 25 light-years of here. Extrapolating to 200 LY suggests that the list you want would comprise more than 15,000 stars (many of them yet undiscovered at present). The expanded Gliese catalogue linked above ostensibly goes to 25 pc (~80 LY), as of 1991, and contains something like four thousand entries. Here's a grab-bag of less ambitious listings from my bookmark file: I didn't think there were that many stars within 200ly. However I did already know of the 116 known stars within 20ly. I find the nearby stars fascinating subjects by themselves, without overwhelming myself too much with the vast distances and goings-on of everything else. It would be nice to be able to see all of their locations without the distraction of the multitude of background stars that are further away that many maps tend to have. Thanks for the helpful links though, I'll check them out. |
#19
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Distant planet judged possibly habitable
In article .com,
studio wrote: snip I find the nearby stars fascinating subjects by themselves, without overwhelming myself too much with the vast distances and goings-on of everything else. It would be nice to be able to see all of their locations without the distraction of the multitude of background stars that are further away that many maps tend to have. The Atlas of the Universe is the best site I know of for putting things in perspective, so to speak, over a wide range of scales: http://www.atlasoftheuniverse.com/index.html http://www.atlasoftheuniverse.com/20lys.html http://www.atlasoftheuniverse.com/50lys.html -- Odysseus |
#20
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Distant planet judged possibly habitable
Yes I've been at that Web site...and those were the initial star
maps I have, and was complaining of that didn't show Gliese 581. Otherwise, I like how they format their maps, even though they are simplistic. It would be better if they used a (.gif or Java script possibly?), so that when someone puts the mouse curser on any of the stars, a pop-up would tell more about it. On May 2, 3:40 am, Odysseus wrote: In article .com, studio wrote: I find the nearby stars fascinating subjects by themselves, without overwhelming myself too much with the vast distances and goings-on of everything else. It would be nice to be able to see all of their locations without the distraction of the multitude of background stars that are further away that many maps tend to have. The Atlas of the Universe is the best site I know of for putting things in perspective, so to speak, over a wide range of scales: http://www.atlasoftheuniverse.com/index.html http://www.atlasoftheuniverse.com/20lys.html http://www.atlasoftheuniverse.com/50lys.html |
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