A Quick And (very) Dirty Mosaic Of The H Alpha Photos I Had Already Taken For The Three Major Components

In my new scale, °X, 0 is Earths' record lowest surface temperature, 50 is the global average, and 100 is the record highest, with a linear scale between each point and adjustment every year as needed.

Temperature Scales [Explained]

Transcript Under the Cut

Temperature Scales

[A table with five columns, labelled: Unit, water freezing point, water boiling point, notes, cursedness. There are eleven rows below the labels.]

[Row 1:] Celsius, 0, 100, Used in most of the world, 2/10 [Row 2:] Kelvin, 273.15, 373.15, 0K is absolute zero, 2/10 [Row 3:] Fahrenheit, 32, 212, Outdoors in most places is between 0–100, 3/10 [Row 4:] Réaumur, 0, 80, Like Celsius, but with 80 instead of 100, 3/8 [Row 5:] Rømer, 7.5, 60, Fahrenheit precursor with similarly random design, 4/10, [Row 6:] Rankine, 491.7, 671.7, Fahrenheit, but with 0°F set to absolute zero, 6/10 [Row 7:] Newton, 0, 33-ish, Poorly defined, with reference points like "the hottest water you can hold your hand in", 7-ish/10 [Row 8:] Wedgewood, –8, –6.7, Intended for comparing the melting points of metals, all of which it was very wrong about, 9/10 [Row 9:] Galen, –4?, 4??, Runs from –4 (cold) to 4 (hot). 0 is "normal"(?), 4/–4 [Row 10:] ''Real'' Celsius, 100, 0, In Anders Celsius's original specification, bigger numbers are ''colder''; others later flipped it, 10/0 [Row 11:] Dalton, 0, 100, A nonlinear scale; 0°C and 100°C are 0 and 100 Dalton, but 50°C is 53.9 Dalton, 53.9/50

A photo of the comet 12P ponce-brook, taken from my bedroom window. In the middle ages, comets were regarded as omens of great change, generally bad ones. It's only after the discovery of their periodic return (during the 15's to 16's hundred) and later discovery of their nature (big balls of mostly ice and some rocks orbiting the sun) that comets stoped to be feared. Despite that, I still find them to be awe-inspiring.

For those interested, this comet is currently visible with a good pair of binoculars or a telescope if you look in the Andromeda constellation (more information on positions and visibility: https://theskylive.com/12p-info) I would have taken more pictures or a better one if the clouds had not been consistently thwarting any attempts at observation in the last week and a half.

At least viruses are a distinct physical thing, prion on the other hand are just fucked up geometry.

It's just angry geometry that angers the other protein around it. It doesn't even have DNA or RNA!!!

i hate viruses so fucking much. literally getting attacked by a fucking shape. a concept. consumes no energy. responds to no stimuli. its only existence is to fuck with you. like fuck offf

same picture with a better post treatment of the original data.

in astrophotography, a lot the work is in the post treatment step. that step does not add details or actual alter the actual data, it's all about how do you reduce the noise in the image as much as posible while keeping the data as visible as possible (in short a lot of math hidden behind what looks like simple fonction such as ''deconvolution'').

This is M51, also known as the Whirlpool Galaxy it is a pair a galaxy currently interacting together. If you look at the two arms of the spiral, you will see that the one on the left is somewhat deformed (near the other galaxy) this is due to the gravitational interaction between the two galaxies. Those interaction are also the reason why the left galaxy (NGC 5195) is this irregular. Some of the models have proposed that both galaxies have passed through each other at some point in the past. In the future both galaxie will slowly fuse together, but this will take at least a few hundred million years. Multiple other interacting galaxies also exist, such as the butterfly galaxies or the antenna galaxies.

This photo was supposed to be a test of my new equatorial mount but the result was WAY BETTER than expected so here you go (the post-treatment of the photos is not the best ever but I had to work with a limited amount a data). I will probably post more photos this summer since I now have access to better skys and a better mount than in Munich (If the weather complies).

Photo of Pickering's triangle (also known as Fleming's triangle) and NGC 6979 / NGC 6974 (the more diffused clouds at the top center/left). This is the third part of the Cygnus loop / veil nebula, this part of the supernova remnant is fainter than the previous two parts of the loop I photographed. This explains in part why it was only discovered by in 1904 by Williamina Fleming (whereas the two writer part were discovered in 1784 by William Herschel). Williamina Fleming was a pioneer in stellar classification, she worked with other women at the Harvard college observatory. Their work in star classification resulted in the Henry Draper Catalogue, an extensive (225 300 stars in the first edition) classification of stars with their position and their spectra. Williamina is also credited with the discovery of 59 nebula (including the famous hors head nebula) more than 300 variable stars as well as (with Henry Norris Russell and Edward Charles Pickering) the discovery of white dwarfs (the remnants of dead sun-like stars).

Skip Google for Research

As Google has worked to overtake the internet, its search algorithm has not just gotten worse.  It has been designed to prioritize advertisers and popular pages often times excluding pages and content that better matches your search terms 

As a writer in need of information for my stories, I find this unacceptable.  As a proponent of availability of information so the populace can actually educate itself, it is unforgivable.

Below is a concise list of useful research sites compiled by Edward Clark over on Facebook. I was familiar with some, but not all of these.

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Google is so powerful that it “hides” other search systems from us. We just don’t know the existence of most of them. Meanwhile, there are still a huge number of excellent searchers in the world who specialize in books, science, other smart information. Keep a list of sites you never heard of.

www.refseek.com - Academic Resource Search. More than a billion sources: encyclopedia, monographies, magazines.

www.worldcat.org - a search for the contents of 20 thousand worldwide libraries. Find out where lies the nearest rare book you need.

https://link.springer.com - access to more than 10 million scientific documents: books, articles, research protocols.

www.bioline.org.br is a library of scientific bioscience journals published in developing countries.

http://repec.org - volunteers from 102 countries have collected almost 4 million publications on economics and related science.

www.science.gov is an American state search engine on 2200+ scientific sites. More than 200 million articles are indexed.

www.pdfdrive.com is the largest website for free download of books in PDF format. Claiming over 225 million names.

www.base-search.net is one of the most powerful researches on academic studies texts. More than 100 million scientific documents, 70% of them are free

I think one big reason why we don't consider the stars as important as before (not even pop-astrology anymore cares about the stars or the sky on itself, just the signs deprived of context) is because of light pollution.

For most of human history the sky looked between 1-3, 4 at most. And then all of a sudden with electrification it was gone (I'm lucky if I get 6 in my small city). The first time I saw the Milky Way fully as a kid was a spiritual experience, I was almost scared on how BRIGHT it was, it felt like someone was looking back at me. You don't get that at all with modern light pollution.

When most people talk about stargazing nowadays they think about watching about a couple of bright dots. The stars are really, really not like that. The unpolluted night sky is a festival of fireworks. There is nothing like it.

This is a photo of the Andromeda galaxy I took nearly 5 years ago. The dark parts of the galaxy are gigantic clouds of dust and gas in which no stars and planets are born. This galaxy is one the closest one to our own, and yet it's 2.55 million light years from us, It's composed of about 1000 billion stars, in a few billion years it will collide with our own galaxy.

The two lighter blotches around Andromeda are two satellite Galaxys that orbit around Andromeda and are also composed of millions of stars.

Those numbers are so big they start to get inconceivable, and that's only a small fraction of what exists out-there. We are not much in the grand scheme of the universe, but when you look at the night sky and the wonders of the universe you can feel at least for a little while that you're part of it.

Picture of the helix nebula / Caldwell 63, this one was a bit of a pain to take as this nebula stays relatively close to the horizon where I live, plus, due to the position of trees and building I only get 1h per night to take photos (had to use pictures from two different nights to get to about 2h of exposure).

This object is also a planetary nebula, like M27 I previously photographed, but it appears much bigger (about 2.5 times) in parte due to it being closer to earth (about 650 light-years compared to about 1360 light-years for the dumbbell nebula/M27).

This nebula has sometimes been referred to as ''the eye of god'' I think you can guess why.

The soon to be white dwarf star at the center of the nebula is (to me at least) a bit more visible in this picture than in the one of M27.

Finished working on my photo of the hors head.

Technically speaking the Horse Head is only the dark nebula, is bright hydrogen cloud behind it is known as IC434 and the second nebula (bottom left) is the flame nebula. The bright star in the center left is Zeta Orionis also known as Alnitak one of the three stars of Orion's Belt. IC434 primary ionisation source is the multiple star system Sigma Orionis (a bit above the frame), the hydrogen cloud being mostly ionise by the UV coming from those blue giant stars. The streaks visible in the nebulosity are mostly likely due to magnetic field within.

The Flame nebula's ionisation source is hidden behind it's dust cloud and is most likely part of a star cluster that Is only reviled using IR and X-ray imaging.

This photo appears mostly blue/teal wear-as most photos of this nebula are red(ish) this is because this nebula emits most of it's light in the H-alpha (656 nm) and S-II (around 672 nm) wavelength both of which are red, so in classic RGB images the nebula appears red. Initially I thought of doing an SHO image (were red is SII emission, green is H-alpha and blue is OIII) but this nebula lacks OIII emission (around 500 nm), so instead a used a modified SHH palette More precisely, I used SII for the red, a combination of both Ha and SII (0.8Ha + 0.2SII) for green and Ha for blue. The stars were taken separately in RGB and added back to the SHH image.

(Image taken using a CarbonStar 150/600 newtonian telescope with a 0.95 coma corrector, ZWO ASI294 monochrome camera and Baader 6.5nm SHO filter. 5x120s image for each colour filter (RGB), 22x300s for the Ha filter and 32x300s for the SII filter, total imaging time 5h, stacking and processing done in PixInsight.)