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Month: November 2013
Home 2013 November

Month: November 2013

Comet ISON survives! (or not…)

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A great gif image[1] of the passage of comet ISON (C/2012 S1) from the Sun, as observed from the SOHO coronagraph! As the initial image is rather big to upload here (~19MB), I just took some parts of it only, with the most interesting parts. A systematic campaign has been …

grigoris November 29, 2013 June 24, 2015 Astronomy
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Bash scripting: convert float to integer

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As bash is not able to handle floats the best way is to convert a float number (which is represented as a string, for example an output with awk) into an integer. To do this [1,2]: float=1.23 int=${float%.*} Refs: [1] Stackexchange.com/Unix & Linux [2] Linuxquestions.org

grigoris November 26, 2013 June 24, 2015 Astronomy
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Fast note on Wien’s law

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Just a quick reminder* ! λmax = 2.89776829 x 106 nm K / T [*] Wien’s displacement law

grigoris November 24, 2013 June 24, 2015 Astronomy
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LaTeX: wide figure or table in a 2 column document

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Much simpler than I thought, but still I think it deserves a note in order not to forget it! Simple add the * when using each element (figure/table)[1]. This will place it as wide as the page, but only at the top of the page. [1]: LaTeX wiki: Floats, Figures …

grigoris November 15, 2013 June 24, 2015 Astronomy
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Where are the stsdas/synphot template spectra?

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After having looked and searched into the whole IRAF/PyRAF directory to point out the directory that contains the template spectra for the stsdas/synphot package it was just a matter of a quick look at the front page of the package to resolve the issue! As it is said: “Since the …

grigoris November 4, 2013 June 24, 2015 Astronomy
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