Geraint Jones

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Geraint Jones

Geraint Jones

@einionyn

Project Scientist for @BepiColombo at @esa. @cometintercept mission lead proposer. @astrojots doodler. Low vowel-count tweets likely Welsh!

Katılım Nisan 2009
1.4K Takip Edilen1.4K Takipçiler
Geraint Jones retweetledi
BepiColombo
BepiColombo@BepiColombo·
It's one year until we reach Mercury to stay! Follow this link to catch up with what we've been up to during our trip to this fascinating little planet! 🙂#bepicolombo
ESA Science@esascience

7️⃣years in space 9️⃣flights past 3️⃣planets 1️⃣ year to go until @BepiColombo arrives at Mercury! 🫡 🤓Rest assured, we’ve made the most of the mission’s winding journey to its destination 👉 esa.int/Science_Explor…

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Dr. Josep M Trigo ⭐🌛#PlanetaryDefense #DART HERA
Dr. Josep M Trigo ⭐🌛#PlanetaryDefense #DART HERA@Josep_Trigo·
Gorgeous news, is there a way to visit some of these interstellar visitors? The magnitude of the challenge is proportional to the implications for Cosmochemistry of having new hints about the composition of a piece of an exoplanetary system‼️ #DeltaVchallenge
Alan Stern@AlanStern

Alan Stern Check this out-- We did a study and determined that a reconnaissance mission to an interstellar comet if feasible, in fact, 3I/ATLAS could have been easily reached! swri.org/newsroom/press…

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Geraint Jones retweetledi
BepiColombo
BepiColombo@BepiColombo·
🤔In space, no one can hear you... make an orbit-bending flyby of Mercury. So BepiColombo recorded its vibrations and turned them into sounds
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Geraint Jones retweetledi
BepiColombo
BepiColombo@BepiColombo·
Mercury in motion... One of the #BepiColombo selfie-cameras captured Mercury today as the spacecraft rushed by the planet at almost 3 km per second. 🛰️💨 This time-lapse of unprocessed images was captured during 10:26-11:18 UTC today (11:26-12:18 CET), between 53700 and 48000 km from the planet's surface. 📸
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Geraint Jones retweetledi
BepiColombo
BepiColombo@BepiColombo·
A successful encounter! #BepiColombo passed Mercury today, gathering valuable science data. 🛰️🌖 As expected, as we were further from the planet than during previous encounters, the planet was quite small in the selfie-cam pictures. Here's an image taken at 10:46 UTC (11:46 CET), when over 51 000km from the surface.
BepiColombo tweet media
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Geraint Jones retweetledi
BepiColombo
BepiColombo@BepiColombo·
Right now, #BepiColombo is at its closest point to Mercury during its fifth encounter with the planet. The spacecraft is 37 360 km from the surface. Data gathered by its instruments will be sent back to Earth during today and tomorrow. 📡⚡️🛰️
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Geraint Jones retweetledi
BepiColombo
BepiColombo@BepiColombo·
#BepiColombo will fly less than 40 000 km above Mercury's surface this Sunday, marking its fifth flyby of the planet. 🆕Its MERTIS instrument will observe the planet in mid-infrared light, making BepiColombo the first spacecraft ever to do so 😎
ESA Science@esascience

This Sunday, @BepiColombo will fly past Mercury for the fifth time. Here's an overview of what you can expect 👇 esa.int/ESA_Multimedia…

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Dani Robertson
Dani Robertson@DaniDarkSkies·
Ancient Light ✨ There she is. Comet Tsuchinshan-ATLAS in all her full-tailed glory, streaming though the sky above Eglwys St.Cwyfan ☄️ A visitor who last graced our skies 80,000 years ago, when Neanderthals still existed!
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Geraint Jones
Geraint Jones@einionyn·
@feline_cannon Yes, trail grains from along the orbit would be spectacular as meteors. Some of the very smallest grains in the dust _tail_, further away from the Sun than the trail, will arrive at Earth. However, they're extremely small and not expected to be observable as meteors.
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Geraint Jones
Geraint Jones@einionyn·
@colinleggphoto I'm sorry - missed this. So ion tail definitely possible, TBC with solar wind measurements. Thanks again.
Noordwijk, Nederland 🇳🇱 English
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Colin Legg
Colin Legg@colinleggphoto·
ct 9 18:52 UTC (C/2023 A3 Tsuchinshan-Atlas). 35mm, 6 sec, f/1.4, iso 3200 x 55 frames. North East Tasmania. Dust tail extending to 50 degrees from below horizon head. Have I also captured the ion tail? @einionyn @SungrazerComets More in comments
Colin Legg tweet media
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Geraint Jones
Geraint Jones@einionyn·
@colinleggphoto These colour images a great help, thanks. As blue not significantly more obvious than other colours, more evidence that this is probably dust. It may become sharper on the morning of the 15th in your timezone as it'll be much closer to when we crossed the comet's orbital plane.
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Colin Legg
Colin Legg@colinleggphoto·
Green Channel
Colin Legg tweet media
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Geraint Jones
Geraint Jones@einionyn·
@colinleggphoto @SungrazerComets Great images, thanks! I suspect by yesterday probably all dust. We'll be able to estimate the position of the ion tail based on measurements of the solar wind by ACE and other spacecraft. When this photo was taken, the ion tail had probably switched to the evening sky, TBC.
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Geraint Jones
Geraint Jones@einionyn·
That straight line across the Sun's disk (arrowed) in @MissionSoho LASCO C2 images is part of #CometC2023A3 's dust tail, which is lying in a sheet in the comet's orbital plane. Earth will cross it at a different time to SOHO, as Sun-SOHO-Earth is not a perfectly straight line.
Geraint Jones tweet media
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Geraint Jones
Geraint Jones@einionyn·
These teeny-tiny grains near Earth are literally being pushed out of the solar system by the pressure of sunlight! All of the dust lying between us and the Sun will form a line running across the Sun's disk in a few hours, as we cross the "fan" of dust in the tail. #CometC2023A3
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Geraint Jones
Geraint Jones@einionyn·
Earth, together with @MissionSoho & other spacecraft at Lagrange Points L1 & L2, will cross #Comet Tschuchinsan-ATLAS's dust tail today. The tiny particles reaching Earth left the comet around 2 weeks ago, & are affected >3 times more by sunlight than by Sun's gravitational pull.
Karl Battams@SungrazerComets

Pretty cool to see the dust trail of Comet Tshuchinsan-ATLAS entering the upper-right corner of @MissionSoho LASCO C2! The reason it's still so visible is because of that "forward scattering" effect we've been taking about, i.e. the dust is being "backlit" by sunlight

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Keşfet

@Josep_Trigo @AlanStern @cometintercept @BepiColombo @MERTISonBepi @DaniDarkSkies @IDADarkSky @skyatnightmag