martinsastro

Astronomy for all.
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132 files in 12 albums and 1 categories with 0 comments viewed 93,606 times

misc


Lester.jpg

1 files, last one added on Dec 26, 2011
Album viewed 465 times

Dargo to Licola


IMG_0518.jpg

18 files, last one added on May 21, 2016
Album viewed 306 times

Camper trailer files.



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Random files
Jen5.jpg
Jen5.jpg533 viewsMartin
ngc3293_3324.jpg
ngc3293_3324.jpgNGC3293 and 3324.596 viewsNGC 3293 is an open cluster in the Carina constellation. It was discovered by Abbe Lacaille in 1751-52. It consists of more than 50 stars in a 10 arc minutes field, the brightest of which is a red giant of mag 6.5.Martin
Jen7.jpg
Jen7.jpg556 viewsMartin
etacrop.jpg
etacrop.jpgEta Carinae nebula.697 viewsThis stellar system is currently one of the most massive that can be studied in great detail. Until recently, Eta Carinae was thought to be the most massive single star, but it was recently demoted to a binary system.[7] The most massive star in the Eta Carinae multiple star system has more than 100 times the mass of the Sun. Other known massive stars are more luminous and more massive.

Stars in the mass class of Eta Carinae, with more than 100 times the mass of the Sun, produce more than a million times as much light as the Sun. They are quite rare — only a few dozen in a galaxy as big as the Milky Way. They are assumed to approach (or potentially exceed) the Eddington limit, i.e., the outward pressure of their radiation is almost strong enough to counteract gravity. Stars that are more than 120 solar masses exceed the theoretical Eddington limit, and their gravity is barely strong enough to hold in their radiation and gas.

Eta Carinae's chief significance for astrophysics is based on its giant eruption or supernova impostor event, which was observed around 1843. In a few years, Eta Carinae produced almost as much visible light as a supernova explosion, but it survived. Other supernova impostors have been seen in other galaxies, for example the false supernovae SN 1961v in NGC 1058[8] and SN 2006jc in UGC 4904,[9] which produced a false supernova, noted in October 2004. Significantly, SN 2006jc was destroyed in a supernova explosion two years later, observed on October 9, 2006.[10] The supernova impostor phenomenon may represent a surface instability[11] or a failed supernova. Eta Carinae's giant eruption was the prototype for this phenomenon, and after nearly 170 years the star's internal structure has not fully recovered.
Martin
IMG_0499.jpg
IMG_0499.jpg297 viewsMark swinging the log splitterMartin
LEO.jpg
LEO.jpgThe Leo trio.1042 viewsThis is a composition of 15X600 Seconds Luminance and 10X300 Seconds RGB each.Martin
Jen2.jpg
Jen2.jpg542 viewsMartin
Nick.jpg
Nick.jpg555 viewsSrike the pose Niko.Martin

Last additions
IMG_0518.jpg
IMG_0518.jpgnice view949 viewsnice viewMartinMay 21, 2016
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IMG_0517.jpgARB Kev1003 viewsARB Kev.MartinMay 21, 2016
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IMG_0516.jpg476 viewsKev's CarMartinMay 21, 2016
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IMG_0515.jpg488 viewsJacki and carMartinMay 21, 2016
IMG_0514.jpg
IMG_0514.jpg486 viewsAlex's carMartinMay 21, 2016
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IMG_0513.jpg496 viewsScotty's carMartinMay 21, 2016
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IMG_0512.jpg495 viewsMark beside his carMartinMay 21, 2016
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IMG_0511.jpg485 viewsHang this in the ceiling and Mark will be out of business :PMartinMay 21, 2016