2020-02-02 Palindrome Day

Today is a palindrome day, i.e. the date written in the format YYYYmmdd can be read in reverse order to give the same result.

An article in a swiss newspaper reported, that this is the first palindrome day for 900 years, a little thinking about the problem easily will give you dates like 2001-10-02, 2010-01-02 or 2011-11-02 that are also palindrome days, but only for the format yyyyMMdd, different dates are palindrome dates for ddMMyyyy. I was curious to see how many palindrome days in either format exist from a given date (I used the year 1 AD (there is no year 0!!!), so I created this little script that prints out all the palindrome days since 01.01.01, days that are palindromes in both formats are highlighted:

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IC405 – the flaming star nebula

IC405, IC 417, M38, NGC 1893, NGC 1907, 80x120s, ISO 1600, Nikon Z6, Takahashi FS-60CB, Optolong L-enhance Filter.

The flaming star nebula IC405 is visible at the upper right in this image, it is a cloud of glowing hydrogen excited by the very hot O-type star AE Aurigae. AE Aurigae is believed to be a former member of a multiple star in the trapezium of Orion. When two binary stars got too close to each other, AE Auriga and presumably also Mu Columbae got ejected. It is now a high velocity star just passing through this gaseous region in the constellation Auriga.

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Taurus Molecular Cloud with 85mm

Taurus Molecular Cloud, California Nebula NGC1499 and Plejades M45, 120x30s, ISO3200, Nikon Z6, Nikkor S 85mm f/1.8 at f/1.8 processed in Fitswork, Photoshop, Lightroom

I tried to use a break in the clouds to photograph a long-time favourit of mine, the Taurus Molecular Cloud TMC. The conditions were far from optimal with some slight fog and clouds passing through, but after throwing away quite a few frames, I ended up with this version.

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IC1848 – Soul nebula

IC1848 – The Soul nebula, 80x180s (4h), Nikon D7000a, Astro-Professinal 80mm ED, 0,8x Reducer.

Sometimes IC1848 is also called the soul nebula, can you see why? This is my longest exposure yet. The 35mm h-alpha filter allowed to bring out the faint nebulosity in spite of the nearly full moon.

Heart Nebula

Heart Nebula, IC 1805, Sharpless 2-190,122x90s (3h 4m), ISO1600, Nikon D7000a, Astro-Professional 80mm f/7 with 0,8x reducer, Optolong L-Pro Filter

IC 1805 is a cloud of glowing hydrogen in the constellation Perseus. The gas is ionized by the hot young stars of the cluster Melotte 15 at the nebula’s center.

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