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.)
I've worked in a chemistry lab, they had a room with all the analysis and purification equipment. There was a constant noise due to the various pumps (vacuum, solvent, ...) and valves. After just a few days working there I could telle exactly with machin was doing what task and at what point it was in that process just based upon the noise they made.
Picture of the bubble nebula and surrounding objects : Top left (the vague group of stars): M52 an open cluster
Center right: NGC 7538 an emission nebula (also known as the northern lagoon nebula)
Bottom center: NGC 7635/the bubble nebula and the surrounding hydrogen cloud
The ''bubble'' part of this nebula is created by the stellar wind (flow of gas, plasma and particle) emitted by the central star at nearly 650 million km/h hitting and compressing the surrounding interstellar gas. The central star (BD +602522) is currently estimated to be about 45 times heavier than our sun and about 4 million years old. Being so massive and thus very hot (it's a type O star) its lifespan is very limited for a star and it should go supernova in about 10 to 20 million years.
BD +602522 is slightly off center from the bubble, this is due to the interstellar gas being a bit more dense on one side and thus slowing the stellar wind more efficiently.
Single exposure to make the central star more visible.
Image taken using a CarbonStar 150/600 newtonian telescope with a 0.95 coma corrector, ZWO ASI294 monochrome camera. 12x300s image for each colour filter (LRGB) and 12x300s for the Ha filter, total imaging time 5h, stacking and processing done in PixInsight.
Starless version of the same image:
Older image where the bubble is more distinct from the background hydrogen clouds :
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
There might not be sound in space, but there is quite a lot to listen to in the radio frequencies (especially when it comes to the planets of the solar system).
(the full article : https://www.jpl.nasa.gov/news/nasas-juno-spacecraft-enters-jupiters-magnetic-field ) Some ''similar'' sounds are also present on earth with for example the reverberation if radio waves emitted by lightning.
I'm trying to find a clean, concise, factual video of pulsar pulses but the top results on youtube are all fake clickbait bullshit. Where are the videos from professor so-and-so with 10 subscribers of simple black and white graphs.
(this page has what I'm looking for but afaik none of these videos are on youtube)
Listen to the sound of wikipedia
This is a way to listen to changes to wikipedia. You are literally listening to knowledge being added to the world.
Pluck sounds are an addition, strings are subtractions, and the pitch says how how big the edit is. My heart shudders at this I love it so much.
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).
Photo of the Pleiades (Messier 45) I took to test my new telescope. This is an open cluster of stars situated about 440 light years from earth, the brighter stars of the cluster are visible with the naked eye (around 5 to 10 stars visible depending of the light pollution, weather and eye accommodation do darkness). Unfortunately, the nebulosity, which I composed of dust clouds reflecting the light from the bright stars, is only visible in photos or with (relatively) large telescope. The cluster is about 100 million years old which is young (for an astronomical object), the more visible stars are hot blue giants, but many other, less visible, stars are present in the cluster. This cluster due to its high visibility has taken an important place in many cultures and mythologies.
(as a fun fact the name of M45 in Japanese is Subaru, and yes the car brand dose gets its name for this star cluster (which explains the logo of the brand))
This is the heart nebula (or at least as much of it as I can take with my setup without doing a mosaic) also known as IC 1805 or NGC 896. It is around 7 000 light years from us, in the constellation Cassiopeia. Despite its distance to us it still appears about twice as big as the moon in the sky, which speaks volumes when it comes to its actual size (about 200 light years in diameter).
This being an emission nebula its light mostly comes from gasses ionised by nearby stars.
This nebula also has an open cluster at it's center (a bit closer to us than the rest of the nebula), Melotte 15:
This cluster is bout 1,5 million years old which is very young for such a stellar object. It is composed a a few very heavy and bright stars and many fainter lighter stars.
The starless version :
(Image taken using a CarbonStar 150/600 newtonian telescope with a 0.95 coma corrector, ZWO ASI294 monochrome camera and Baader 6.5nm narrowband filter. 25x300s for the Ha filter, 26x300s for the SII filter and 26x300s for the OIII filter, total imaging time 6h 25min, stacking and processing done in PixInsight. Photo taken mid-January) Other versions with a different colour combinations (a bit less pleased of how they turned out).
If you want to see the nebula in its entirety, you can check out this NASA Astronomy picture of the day made by Adam Jensen.
So I just saw a post by a random personal blog that said “don’t follow me if we never even had a conversation before” and?????? Not to be rude but literally what the fuck??????????
I’ve had people (non-pornbots) try to strike conversation out of nowhere in my DMs recently, and now I’m wondering if they were doing that because they wanted to follow me and thought they needed to interact first. I feel compelled to say, just in case, that it’s totally okay to follow this blog (or my side blog, for that matter) even if we’ve never talked before.
Also, I’m legit confused. Is this how follow culture works right now? It was worded like it’s common sense but is that really a thing?
Astrophotographer & chemist, mid 20'sCurrently on the roof yelling at the clouds to get out of the wayMostly astrophotos I've taken, possibly other science related stuff
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