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Ernesto Guido
@
comets77
Italy
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Italian amateur astronomer whose main interests lie in the astrometry and physical properties of comets about.me/ernesto-guido
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2.072
Tweetovi
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412
Pratim
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1.537
Osobe koje vas prate
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Peter Brown
@pgbrown
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23. sij |
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Kintail fireball from Jan 22 as captured early in flight by accident on @westernu most sensitive meteor cameras which use EMCCDs from @nuvucameras. FOV is roughly 15x15 degrees and faintest visible stars are near +12. @amsmeteors @IMOmeteors #fireball #Meteorite pic.twitter.com/exv1OqHPr4
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Ernesto Guido
@comets77
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18. sij |
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At 2130UTC of 2020-01-17, a #fireball was detected just north of Puerto Rico (5:31pm local time). Video via @LouisVtweeter - Satellite image available here: bit.ly/2Tz6cT6 #puertorico #meteor #fireball #meteoro #astronomy pic.twitter.com/Jx5Eo76sGn
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Ernesto Guido
@comets77
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18. sij |
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Thanks Adrien, I guess you are right. haste makes waste. I'll cancel the tweet and send out a correct one. Ciao, Ernesto
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NASA's Lucy Mission
@NASALucy2Trojan
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9. sij |
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Lucy will be visiting not just 7 asteroids, but 8! Eurybates has a satellite! nasa.gov/feature/nasa-s… pic.twitter.com/yLObclQxtR
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Ernesto Guido
@comets77
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6. sij |
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New Comet C/2019 Y1 (ATLAS), imaged from a dark Chilean sky and a 0.61-m f/6.5 reflector + ccd
bit.ly/2QQyh5q - Thanks to @TelescopeLiveHQ remote facility #astronomy #comets cc @fallingstarIfA pic.twitter.com/QKZhL8iZ4m
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IMO Meteor Org.
@IMOmeteors
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6. sij |
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What could best start the year than a fresh meteorite recovery after a huge fireball on January 1st? This is what just happened in Northern Italy...
imo.net/new-year-itali… pic.twitter.com/oW5Id8gCsC
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Ernesto Guido
@comets77
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19. pro |
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"Evolving Coma Morphology of Interstellar Comet 2I/Borisov with Deep HST Imaging" by Bryce T. Bolin bit.ly/2S7KWDa #astronomy #comets #borisov pic.twitter.com/1cfyssRqEa
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Ernesto Guido
@comets77
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16. pro |
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"Hubble Watches Interstellar Comet Borisov Speed Past the Sun" bit.ly/36CiBJa - Hubble images show that its nucleus is more than 15 times smaller than earlier investigations suggested it might be. The radius is smaller than half a kilometre. #astronomy #comets #borisov pic.twitter.com/nxK3KUYZhE
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Research Notes
@AAS_ResNotes
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13. pro |
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New Research Note: The Inbound Light Curve of 2I/Borisov twib.in/l/jrbzjA6BBr9E
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Ernesto Guido
@comets77
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12. pro |
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"The Nucleus of Interstellar Comet 2I/Borisov" by Jewitt et al. - "We used the Hubble Space Telescope to observe interstellar comet 2I/(2019 Q4) Borisov. Three independent constraints
show that the nucleus is a sub-kilometer body" bit.ly/35jcxFe #astronomy #comets pic.twitter.com/b8jVtlbmJY
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Karl Battams
@SungrazerComets
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11. pro |
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There it is folks! The first visible detection of a dust trail following the orbit of near-Sun/near-Earth active asteroid Phaethon! pic.twitter.com/c1iZxVpIBa
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Ernesto Guido
@comets77
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10. pro |
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Interstellar Comet 2I/Borisov imaged few hours ago (2019, Dec. 10.29) from a dark Chilean sky and a 0.61-m f/6.5 reflector + ccd (its closest approach to the sun was on Dec. 8). Thanks to @TelescopeLiveHQ remote facility #astronomy #comets #borisov #interstellarcomet pic.twitter.com/tTzBcVYzOF
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Ernesto Guido
@comets77
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7. pro |
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Giovanni Sostero (18 March 1964 – 6 December 2012).
Remembering a Great Friend and a Great Astronomer - In Memoria di un Grande Amico e un Grande Astronomo
bit.ly/YBq5CU
#astronomy #comets #asteroids pic.twitter.com/NenMHR3dMA pic.twitter.com/N51edSVKk7
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Karl Battams
@SungrazerComets
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4. pro |
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Congrats to my comet friends at @UMDAstronomy, using
@NASA_TESS to capture a really great sequence of comet 46P outbursting!
cmns.umd.edu/news-events/fe… pic.twitter.com/MloltAN2Wu
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Ernesto Guido
@comets77
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3. pro |
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Ernesto Guido
@comets77
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2. pro |
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"Rooftop Astronomy” by @tomgauld is this week’s cover for @NewYorker magazine bit.ly/2rHrfXH #astronomy pic.twitter.com/OgTo2Qyj1p
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Ernesto Guido
@comets77
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2. pro |
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RIP Astronomer Michael Clark (1942 - 2019). Discoverer of comet 71P/Clark in 1973 at the Mt John University Observatory, passed away in Melbourne, Australia.
via bit.ly/380RsRB
#astronomy #comets pic.twitter.com/miyLQkDGY2
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Ernesto Guido
@comets77
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27. stu |
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Six years ago, I sent Pynchon into space! "Asteroids named after Thomas Pynchon & Stabia" bit.ly/2OV2S0O #pynchon #152319 #astronomy #asteroid pic.twitter.com/FrpEnYsfib
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W. M. Keck Observatory
@keckobservatory
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26. stu |
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Check out this new image of comet 2I/Borisov taken Nov 24 using @keckobservatory! Earth is superimposed on the image to show the comet’s size: its tail is 14x the size of our planet! Closet approach to Earth is early Dec. Mahalo @dokkumPieter of @Yale & his team for the image! pic.twitter.com/4q9gsnSxJh
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Ernesto Guido
@comets77
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15. stu |
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New papers on interstellar comet 2I/Borisov: "Pre-discovery Activity of New Interstellar Comet 2I/Borisov Beyond 5 AU" by @Yeqzids et al. bit.ly/3793sjB & "Sublimation of water ice....near the nucleus of 2I/BORISOV?" by Z. Sekanina bit.ly/2OdpTM1 #astronomy pic.twitter.com/wocQ8e9UJC
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