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Part of MY world :)

Saturday, March 19, 2005

What does mira mean?

;)
MIRA (Omicron Ceti). Mira, its very name telling us that we should take strong notice, Mira "the amazing one," the word coming from the same root as "miracle," Mira the only proper-named star in the sky that for a time is too faint to be seen with the naked eye. Few of the stars in its resident constellation Cetus, the Whale, are prominent; only the Alpha and Beta stars are of the second magnitude. Mira itself was relegated by Johannes Bayer to be the "Omicron" (the 15th letter in the Greek alphabet) star. In 1572, Tycho Brahe studied a "new star" so bright that for a time it was visible in daylight. Not new at all, Tycho's star is now known to have been an old star that exploded and disappeared forever. Two dozen years later, David Fabricius thought he might have found another, though much fainter one, in Cetus. This star, however, returned, and has been doing so for over 400 years. Mira is the brightest of the red class M "long period variables," thousands of which are now known. Our star varies from about third magnitude (though sometimes it can reach second) way down to tenth, 40 or so times fainter than the human eye can see alone, and then back again over a 330 day period. As a result it is sometimes a part of its constellation, sometimes not. Mira, with a temperature just above 2000 degrees Kelvin, is one of the coolest stars in the sky. From its distance of 420 light years, we calculate an average luminosity (that includes invisible infrared radiation) 15,000 times that of the Sun. The star is approaching the last stages of its life. Long ago, the hydrogen fusion that powered its core ran out, and then the by- product of that fusion, helium, fused to carbon and oxygen, and now the helium has also run out. The result of these internal changes is a hugely distended, very luminous star that is double the size of the orbit of Mars. Hubble Space Telescope observations show that the star is so unstable that it is not even round. The light variations are caused by pulsation, changes in size that also affect the star's temperature. Mira's great size and instability promote a wind that will soon blow away its outer envelope, the inner nuclear burning portions condensing into a burnt-out "white dwarf," a tiny star the size of Earth, the rest of the star lost to interstellar space. These long period variables help enrich the interstellar gases, out of which new stars condense, with chemical elements formed in their nuclear cauldrons. Most of the carbon in the Universe seems to have come from them. Mira has a white dwarf companion to which all these events have already happened. Many billions of years from now, the same will happen to our Sun.
Origin: Latin, Spanish; Hebrew
Meaning: wonder; aim; light of God
Similar names: Myra, Mirila, Mirella, Mirelle, Mirielle, Myrilla

Well I am not sure y i blogged this i guess the main reason is that i am proud of my name :)



16 Comments:

  • Hey mira, I just read your comment on my blog. Don't worry, hopefully your brother will be accepted.. where does he want to go (which university/town) that's cool that u are still writing in your blog :)

    By Blogger Zied The Dreamer, at 3/19/2005 10:03 AM  

  • well he applied 1 Waterloo and Toronto :)Thx 4 the comment :)i am not sure i will post again this was exceptional but thx anyways :)

    By Blogger M!R@CHK@, at 3/19/2005 10:08 AM  

  • Wow at last a post from Mira, that's surely made my day I was dying to read something new to you. :)
    Anyway I love your name it has a nice sound, and meaning as well.
    By the way do you know what does Sinan mean??

    By Blogger Sinan, at 3/19/2005 1:29 PM  

  • oh sorry to read something from* you

    By Blogger Sinan, at 3/19/2005 1:36 PM  

  • I like ur name very much...but all this time i thought that it means something like a package that prophit muhamed (pbuh) used to put his food inside it!

    By Blogger Ghalia, at 3/19/2005 2:01 PM  

  • Sinan how did u know i blogged lol :P well i remember a cartoon named sinan but no i dont know wat sinan means? Thx alot U really made my day by those nice words btw ;)

    By Blogger M!R@CHK@, at 3/19/2005 2:04 PM  

  • Well my arabic teacher told me smthn like that once that u have it in the Kor2an il kareem ;) well it has many meanings its even labaneh bil kordi lol :)

    By Blogger M!R@CHK@, at 3/19/2005 2:06 PM  

  • bwt I bought the last Delta Goodrem album and I listened to you dedicated song to all girls out there, and I liked it. I like the way she heavily use piano in her music, I love Piano but of course not as much as guitar.

    By Blogger Sinan, at 3/20/2005 12:42 PM  

  • ;) sinan well i really like that song but i didnt hear all her album, i just adore both piano and guitar.So i am looking 4rwd 2 hear u play the guitar partner lol :P

    By Blogger M!R@CHK@, at 3/20/2005 12:48 PM  

  • Btw sinan u didnt ans me how did u find out i blogged just curious??!

    By Blogger M!R@CHK@, at 3/20/2005 12:49 PM  

  • well I saw your comment on Ghalia blog thanking her for her nice comment so I figured out that you had a new post, that's it :)

    By Blogger Sinan, at 3/20/2005 1:23 PM  

  • hehe ok:) its just that i didnt expect anyone 2 notice thats it :)

    By Blogger M!R@CHK@, at 3/20/2005 1:44 PM  

  • It seems people did :)

    By Blogger Sinan, at 3/20/2005 2:16 PM  

  • lol ya so far they did and thx 2 all :)

    By Blogger M!R@CHK@, at 3/20/2005 2:27 PM  

  • One of the coolest stars in the sky.
    Ya, u r COOL :D

    By Blogger Nader, at 3/20/2005 2:59 PM  

  • hehe thx nadz u r really sweet ;)

    By Blogger M!R@CHK@, at 3/20/2005 3:53 PM  

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