#c2023p1 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #c2023p1, aggregated by home.social.
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Comet C/2023 P1 (Nishimura) over Stonehenge!
More images of the comet upstream in this thread.
Posted on the Stonehenge twitter site.
Credit: Nick Bull
https://twitter.com/EH_Stonehenge/status/1701207821293846983
#C2023P1 #Nishimura
6/n -
Here is another outstanding image of comet C/2023 P1 (Nishimura), this one taken by Sławomir Matz.
His post reads - "C/2023 P1 (Nishimura) photographed on September 7, 2023. The comet is currently popular in the media and can be visible to the naked eye. I wrote about her on Facebook! Look for the peja "Stars in the hands."
https://twitter.com/slawomir_matz/status/1700474968176226556
#C2023P1 #Nishimura
5/n -
This glorious image of comet C/2023 P1 Nishimura was taken by Jeremy Perez, art director and photographer in Flagstaff, AZ.
Taken Sat. morning, Sep 9 from Cinder Hills Overlook/Sunset Crater in AZ.
He adds - "Canon 6DII + Canon EF 24-105 f/4 @ 105mm.
41 x 4 sec, f/4 @ ISO 12800 in Starry Landscape Stacker & Photoshop/Lightroom.
Tail length ~6°"At 0.84 AU distance, the tail is ~13M km long!
https://twitter.com/jperez1690/status/1700750391812780274
Check out his website at http://www.perezmedia.net/
#C2023P1 #Nishimura
4/n -
Here is another vivid image of comet C/2023 P1 (Nishimura) by "comethunter" and astro-photographer Michael Jäger.
His post adds - "Comet Nishimura C/2023 P1 2023 sep. 9 2.48 UT 10x60sec Zeiss-Milvus f-135/2.5 Nikon Z50mod ISO 400 Michael Jäger."
https://twitter.com/Komet123Jager/status/1700456978194063573
#C2023P1 #Nishimura
3/n -
The light curve below shows that comet C/2023 P1 (Nishimura) is brightening up nicely. Current apparent magnitude is below 4 (lower is brighter).
In theory, objects with mag 6 and lower are visible to the naked eye, but currently the comet is low on the horizon during the early morning hours, so visibility depends on local conditions. Binoculars help.
After Sep 17, it will be too close to setting sun as seen from the northern hemisphere.
Source: http://astro.vanbuitenen.nl/comet/2023P1
#C2023P1 #Nishimura
2/n -
Some beautiful images of comet C/2023 P1 (Nishimura) are getting posted online by amateur and professional astro-photographers, as the comet nears its closest approach to earth on Sep 12.
Let's take a look at a few.
This first one, posted on apod, was taken in eastern Slovakia by Petr Horálek / Institute of Physics in Opava.
Check out this earlier thread for some more info on the comet - https://fosstodon.org/@AkaSci/111008086190146961
Source: https://apod.nasa.gov/apod/ap230911.html
#C2023P1 #Nishimura
1/n -
Some articles and papers on the enigmatic quadruple bond in C2 -
https://www.chemistryworld.com/news/calculations-reveal-carbon-carbon-quadruple-bond-/3000688.article
https://www.nature.com/articles/nchem.1263
https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.201600011C2 exhibits a triple bond as in N2, but has been shown to have a fourth weaker bond formed by the outer electrons.
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Some articles and papers on the enigmatic quadruple bond in C2 -
https://www.chemistryworld.com/news/calculations-reveal-carbon-carbon-quadruple-bond-/3000688.article
https://www.nature.com/articles/nchem.1263
https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.201600011C2 exhibits a triple bond as in N2, but has been shown to have a fourth weaker bond formed by the outer electrons.
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Some articles and papers on the enigmatic quadruple bond in C2 -
https://www.chemistryworld.com/news/calculations-reveal-carbon-carbon-quadruple-bond-/3000688.article
https://www.nature.com/articles/nchem.1263
https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.201600011C2 exhibits a triple bond as in N2, but has been shown to have a fourth weaker bond formed by the outer electrons.
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Some articles and papers on the enigmatic quadruple bond in C2 -
https://www.chemistryworld.com/news/calculations-reveal-carbon-carbon-quadruple-bond-/3000688.article
https://www.nature.com/articles/nchem.1263
https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.201600011C2 exhibits a triple bond as in N2, but has been shown to have a fourth weaker bond formed by the outer electrons.
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Some articles and papers on the enigmatic quadruple bond in C2 -
https://www.chemistryworld.com/news/calculations-reveal-carbon-carbon-quadruple-bond-/3000688.article
https://www.nature.com/articles/nchem.1263
https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.201600011C2 exhibits a triple bond as in N2, but has been shown to have a fourth weaker bond formed by the outer electrons.
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Diatomic carbon C2 is a green, gaseous inorganic chemical. It is unstable at ambient temp. and pressure (it polymerizes).
It is found in flames, comets, stars and the interstellar medium.From https://www.pnas.org/doi/10.1073/pnas.2113315118 -
"This work shows that, to break the quadruple bond of C2 using sunlight, the molecule must absorb two photons and undergo two “forbidden” transitions." (spin conservation and the Born–Oppenheimer approx).Oh my!
https://en.wikipedia.org/wiki/Diatomic_carbon
#dicarbon #C2023P1 #Nishimura
9/n -
Diatomic carbon C2 is a green, gaseous inorganic chemical. It is unstable at ambient temp. and pressure (it polymerizes).
It is found in flames, comets, stars and the interstellar medium.From https://www.pnas.org/doi/10.1073/pnas.2113315118 -
"This work shows that, to break the quadruple bond of C2 using sunlight, the molecule must absorb two photons and undergo two “forbidden” transitions." (spin conservation and the Born–Oppenheimer approx).Oh my!
https://en.wikipedia.org/wiki/Diatomic_carbon
#dicarbon #C2023P1 #Nishimura
9/n -
Diatomic carbon C2 is a green, gaseous inorganic chemical. It is unstable at ambient temp. and pressure (it polymerizes).
It is found in flames, comets, stars and the interstellar medium.From https://www.pnas.org/doi/10.1073/pnas.2113315118 -
"This work shows that, to break the quadruple bond of C2 using sunlight, the molecule must absorb two photons and undergo two “forbidden” transitions." (spin conservation and the Born–Oppenheimer approx).Oh my!
https://en.wikipedia.org/wiki/Diatomic_carbon
#dicarbon #C2023P1 #Nishimura
9/n -
Diatomic carbon C2 is a green, gaseous inorganic chemical. It is unstable at ambient temp. and pressure (it polymerizes).
It is found in flames, comets, stars and the interstellar medium.From https://www.pnas.org/doi/10.1073/pnas.2113315118 -
"This work shows that, to break the quadruple bond of C2 using sunlight, the molecule must absorb two photons and undergo two “forbidden” transitions." (spin conservation and the Born–Oppenheimer approx).Oh my!
https://en.wikipedia.org/wiki/Diatomic_carbon
#dicarbon #C2023P1 #Nishimura
9/n -
Diatomic carbon C2 is a green, gaseous inorganic chemical. It is unstable at ambient temp. and pressure (it polymerizes).
It is found in flames, comets, stars and the interstellar medium.From https://www.pnas.org/doi/10.1073/pnas.2113315118 -
"This work shows that, to break the quadruple bond of C2 using sunlight, the molecule must absorb two photons and undergo two “forbidden” transitions." (spin conservation and the Born–Oppenheimer approx).Oh my!
https://en.wikipedia.org/wiki/Diatomic_carbon
#dicarbon #C2023P1 #Nishimura
9/n -
The green color seen in the coma of most comets, but not in their tails, is due to emissions from quad-bond Diatomic carbon (aka dicarbon) molecules.
Sunlight heats the comet’s ice and organic material to produce C2 molecules, which break apart in ~2 days before they reach the tail. C2 is excited by solar UV radiation and emits mostly in infrared but its triplet state radiates at 518 nm.
https://physicstoday.scitation.org/do/10.1063/pt.6.1.20220110a/full/
https://www.pnas.org/doi/10.1073/pnas.2113315118
#dicarbon #C2023P1 #Nishimura
8/n -
The green color seen in the coma of most comets, but not in their tails, is due to emissions from quad-bond Diatomic carbon (aka dicarbon) molecules.
Sunlight heats the comet’s ice and organic material to produce C2 molecules, which break apart in ~2 days before they reach the tail. C2 is excited by solar UV radiation and emits mostly in infrared but its triplet state radiates at 518 nm.
https://physicstoday.scitation.org/do/10.1063/pt.6.1.20220110a/full/
https://www.pnas.org/doi/10.1073/pnas.2113315118
#dicarbon #C2023P1 #Nishimura
8/n -
The green color seen in the coma of most comets, but not in their tails, is due to emissions from quad-bond Diatomic carbon (aka dicarbon) molecules.
Sunlight heats the comet’s ice and organic material to produce C2 molecules, which break apart in ~2 days before they reach the tail. C2 is excited by solar UV radiation and emits mostly in infrared but its triplet state radiates at 518 nm.
https://physicstoday.scitation.org/do/10.1063/pt.6.1.20220110a/full/
https://www.pnas.org/doi/10.1073/pnas.2113315118
#dicarbon #C2023P1 #Nishimura
8/n -
The green color seen in the coma of most comets, but not in their tails, is due to emissions from quad-bond Diatomic carbon (aka dicarbon) molecules.
Sunlight heats the comet’s ice and organic material to produce C2 molecules, which break apart in ~2 days before they reach the tail. C2 is excited by solar UV radiation and emits mostly in infrared but its triplet state radiates at 518 nm.
https://physicstoday.scitation.org/do/10.1063/pt.6.1.20220110a/full/
https://www.pnas.org/doi/10.1073/pnas.2113315118
#dicarbon #C2023P1 #Nishimura
8/n -
The green color seen in the coma of most comets, but not in their tails, is due to emissions from quad-bond Diatomic carbon (aka dicarbon) molecules.
Sunlight heats the comet’s ice and organic material to produce C2 molecules, which break apart in ~2 days before they reach the tail. C2 is excited by solar UV radiation and emits mostly in infrared but its triplet state radiates at 518 nm.
https://physicstoday.scitation.org/do/10.1063/pt.6.1.20220110a/full/
https://www.pnas.org/doi/10.1073/pnas.2113315118
#dicarbon #C2023P1 #Nishimura
8/n