#apophis — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #apophis, aggregated by home.social.
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The #Apophis Encounter in 2029 - A Rare Opportunity for Planetary Science and Defense: https://spj.science.org/doi/10.34133/space.0505 -> this review "systematically synthesizes the scientific opportunities and planetary defense value of the 2029 Apophis flyby event": https://www.eurekalert.org/news-releases/1140792
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2026-08-21 13:00:00 UTC (Delta: 2026-08-14)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 24.63 km/s (+0.37 km/s)
- Rendezvous with Apophis in: 973 days🪨 Relative to Apophis
- Distance (km): 252,483,269.90 km (-7,650,933.14 km)
- Distance (AU): 1.69 (-0.05)
- Light travel time: 14 min 2.19 s (-25.52 s)🌎 Relative to Earth
- Distance (km): 72,095,548.53 km (+4,187,559.07 km)
- Distance (AU): 0.48 (+0.03)
- Light travel time: 4 min 0.48 s (+13.97 s) -
2026-08-14 13:00:00 UTC (Delta: 2026-08-07)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 24.26 km/s (+0.32 km/s)
- Rendezvous with Apophis in: 980 days🪨 Relative to Apophis
- Distance (km): 260,134,203.04 km (-7,047,394.78 km)
- Distance (AU): 1.74 (-0.05)
- Light travel time: 14 min 27.71 s (-23.51 s)🌎 Relative to Earth
- Distance (km): 67,907,989.46 km (+4,304,250.42 km)
- Distance (AU): 0.45 (+0.03)
- Light travel time: 3 min 46.52 s (+14.36 s) -
2026-08-07 13:00:00 UTC (Delta: 2026-07-31)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.94 km/s (+0.28 km/s)
- Rendezvous with Apophis in: 987 days🪨 Relative to Apophis
- Distance (km): 267,181,597.82 km (-6,437,859.47 km)
- Distance (AU): 1.79 (-0.04)
- Light travel time: 14 min 51.25 s (-21.48 s)🌎 Relative to Earth
- Distance (km): 63,603,739.04 km (+4,290,740.65 km)
- Distance (AU): 0.43 (+0.03)
- Light travel time: 3 min 32.17 s (+14.31 s) -
2026-07-31 13:00:00 UTC (Delta: 2026-07-24)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.67 km/s (+0.23 km/s)
- Rendezvous with Apophis in: 994 days🪨 Relative to Apophis
- Distance (km): 273,619,457.29 km (-5,825,415.07 km)
- Distance (AU): 1.83 (-0.04)
- Light travel time: 15 min 12.72 s (-19.43 s)🌎 Relative to Earth
- Distance (km): 59,312,998.40 km (+4,144,435.36 km)
- Distance (AU): 0.40 (+0.03)
- Light travel time: 3 min 17.85 s (+13.82 s) -
2026-07-24 13:00:00 UTC (Delta: 2026-07-17)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.43 km/s (+0.19 km/s)
- Rendezvous with Apophis in: 1001 days🪨 Relative to Apophis
- Distance (km): 279,444,872.35 km (-5,212,392.73 km)
- Distance (AU): 1.87 (-0.03)
- Light travel time: 15 min 32.16 s (-17.39 s)🌎 Relative to Earth
- Distance (km): 55,168,563.03 km (+3,833,903.96 km)
- Distance (AU): 0.37 (+0.03)
- Light travel time: 3 min 4.03 s (+12.79 s) -
ESA-Mission mit Beteiligung der TU Braunschweig 🚀
☄️ Wenn der #Asteroid #Apophis am 13. April 2029 an der Erde vorbeifliegt, wird ein an der #TUBraunschweig entwickeltes Magnetometer direkt auf seiner Oberfläche geophysikalische Messungen durchführen.
🛰️ Das Instrument MARIE ist Teil eines landenden CubeSats der #ESA-Mission RAMSES und soll gemeinsam mit weiteren Experimenten die Auswirkungen des außergewöhnlich nahen Erdvorbeiflugs untersuchen.
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💁🏻♀️ TIL: ☄️🌍 A mapping project shared at the University of #Padua shows when and where billions of people can see #asteroid #Apophis during its safe 2029 flyby.
Scientists calculated that the #space rock will be bright enough for naked eye viewing across #Europe, #Africa, and #Asia, and it will pass closer to our #planet than many #weather #satellites.
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"'Shared cosmic experience': 'Potentially hazardous' asteroid Apophis could be visible to 90% of Earth's population during ultraclose 2029 flyby" by @LiveScience - Every continent except North America will have some nighttime hours with view of the near-Earth #asteroid #99942Apophis during its fly-by on April 13, 2029. Closest point will be 19,000mi/30,600km from Earth's surface, which is closer than geosynchronous satellites! https://www.livescience.com/space/asteroids/shared-cosmic-experience-potentially-hazardous-asteroid-apophis-could-be-visible-to-90-percent-of-earths-population-during-ultraclose-2029-flyby-new-maps-reveal #Apophis #NEA #NEO #astronomy #LowFlyingRocks
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2026-07-17 13:00:00 UTC (Delta: 2026-07-10)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.24 km/s (+0.14 km/s)
- Rendezvous with Apophis in: 1008 days🪨 Relative to Apophis
- Distance (km): 284,657,265.08 km (-4,600,577.84 km)
- Distance (AU): 1.90 (-0.03)
- Light travel time: 15 min 49.54 s (-15.35 s)🌎 Relative to Earth
- Distance (km): 51,334,659.07 km (+3,311,857.91 km)
- Distance (AU): 0.34 (+0.02)
- Light travel time: 2 min 51.24 s (+11.05 s) -
2026-07-10 13:00:00 UTC (Delta: 2026-07-03)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.10 km/s (+0.10 km/s)
- Rendezvous with Apophis in: 1015 days🪨 Relative to Apophis
- Distance (km): 289,257,842.92 km (-3,991,373.18 km)
- Distance (AU): 1.93 (-0.03)
- Light travel time: 16 min 4.89 s (-13.31 s)🌎 Relative to Earth
- Distance (km): 48,022,801.16 km (+2,562,300.48 km)
- Distance (AU): 0.32 (+0.02)
- Light travel time: 2 min 40.19 s (+8.55 s) -
Once-in-a-millennium Apophis flyby in 2029 will be visible to billions
https://1ban.news/apophis-2029-flyby-visibility/
#1ban #apophis #2029 #flyby #visibility #space -
#ESA:
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Surface CubeSat contracted for Ramses asteroid mission
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".. contracted Spanish company EMXYS for the first CubeSat designed to operate on the surface of an asteroid. Don Quijote is a shoebox-sized spacecraft that will be deployed onto the Apophis asteroid by ESA’s Ramses mission before the asteroid flies by Earth on 13 April 2029. .."2.7.2026
#Apophis #Asteroid #Cubesat #DonQuijote #EMXYS #GRASS #MARIE #Ramses #Raumfahrt #Raumsonde #SIA #SpaceFlight
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2026-07-03 13:00:00 UTC (Delta: 2026-06-26)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.00 km/s (+0.06 km/s)
- Rendezvous with Apophis in: 1022 days🪨 Relative to Apophis
- Distance (km): 293,249,216.10 km (-3,385,927.15 km)
- Distance (AU): 1.96 (-0.02)
- Light travel time: 16 min 18.20 s (-11.29 s)🌎 Relative to Earth
- Distance (km): 45,460,500.67 km (+1,616,743.57 km)
- Distance (AU): 0.30 (+0.01)
- Light travel time: 2 min 31.64 s (+5.39 s) -
The European Space Agency has contracted Spanish company EMXYS for the first CubeSat designed to operate on the surface of an asteroid: https://www.esa.int/Space_Safety/Planetary_Defence/Surface_CubeSat_contracted_for_Ramses_asteroid_mission - #DonQuijote is a shoebox-sized spacecraft that will be deployed onto the #Apophis asteroid by ESA’s #Ramses mission before the asteroid flies by Earth on 13 April 2029.
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2026-06-26 13:00:00 UTC (Delta: 2026-06-19)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 22.94 km/s (+0.01 km/s)
- Rendezvous with Apophis in: 1029 days🪨 Relative to Apophis
- Distance (km): 296,635,143.25 km (-2,785,237.01 km)
- Distance (AU): 1.98 (-0.02)
- Light travel time: 16 min 29.50 s (-9.29 s)🌎 Relative to Earth
- Distance (km): 43,843,757.10 km (+519,013.74 km)
- Distance (AU): 0.29 (+0.00)
- Light travel time: 2 min 26.25 s (+1.73 s) -
2026-06-19 13:00:00 UTC (Delta: 2026-06-12)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 22.93 km/s (-0.03 km/s)
- Rendezvous with Apophis in: 1036 days🪨 Relative to Apophis
- Distance (km): 299,420,380.26 km (-2,190,234.68 km)
- Distance (AU): 2.00 (-0.01)
- Light travel time: 16 min 38.79 s (-7.31 s)🌎 Relative to Earth
- Distance (km): 43,324,743.36 km (-649,730.77 km)
- Distance (AU): 0.29 (-0.00)
- Light travel time: 2 min 24.52 s (-2.17 s) -
Chinese university-led mission to study asteroid Apophis during close encounter with Earth
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RE: https://mastodon.online/@michael_w_busch/116770480834168034
5.8 Earth radii distance sounds a bit too close for comfort to me. But I see experts have been watching this rock for decades and downgraded the risk assessment https://en.wikipedia.org/wiki/99942_Apophis #apophis #science #solarSystem
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2026-06-12 13:00:00 UTC (Delta: 2026-06-05)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 22.96 km/s (-0.07 km/s)
- Rendezvous with Apophis in: 1043 days🪨 Relative to Apophis
- Distance (km): 301,610,614.94 km (-1,601,845.41 km)
- Distance (AU): 2.02 (-0.01)
- Light travel time: 16 min 46.10 s (-5.34 s)🌎 Relative to Earth
- Distance (km): 43,974,474.13 km (-1,756,524.02 km)
- Distance (AU): 0.29 (-0.01)
- Light travel time: 2 min 26.69 s (-5.86 s) -
#OHB:
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OHB startet Bau der ESA-JAXA RAMSES-Sonde
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"Im Reinraum v. OHB in Bremen haben die Arbeiten an der europäischen Planetenverteidigungsmission RAMSES (Rapid Apophis Mission for Space Safety) offiziell begonnen. .. Um den Asteroiden Apophis vor seinem spektakulären Erdvorbeiflug im April 2029 rechtzeitig zu erreichen, muss der Start der RAMSES-Sonde bereits im Frühjahr 2028 erfolgen."https://www.ohb.de/aktuelles/ohb-startet-bau-der-esa-jaxa-ramses-sonde
4.6.2026
#Apophis #Bremen #ESA #JAXA #RAMSES #Raumfahrt #Raumsonde #SpaceFlight
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2026-06-05 13:00:00 UTC (Delta: 2026-05-29)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.04 km/s (-0.12 km/s)
- Rendezvous with Apophis in: 1050 days🪨 Relative to Apophis
- Distance (km): 303,212,460.35 km (-1,021,084.06 km)
- Distance (AU): 2.03 (-0.01)
- Light travel time: 16 min 51.44 s (-3.41 s)🌎 Relative to Earth
- Distance (km): 45,730,998.15 km (-2,686,553.95 km)
- Distance (AU): 0.31 (-0.02)
- Light travel time: 2 min 32.55 s (-8.96 s) -
2026-05-29 13:00:00 UTC (Delta: 2026-05-22)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.16 km/s (-0.16 km/s)
- Rendezvous with Apophis in: 1057 days🪨 Relative to Apophis
- Distance (km): 304,233,544.40 km (-449,100.16 km)
- Distance (AU): 2.03 (-0.00)
- Light travel time: 16 min 54.84 s (-1.50 s)🌎 Relative to Earth
- Distance (km): 48,417,552.09 km (-3,407,668.82 km)
- Distance (AU): 0.32 (-0.02)
- Light travel time: 2 min 41.51 s (-11.37 s) -
2026-05-22 13:00:00 UTC (Delta: 2026-05-15)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.32 km/s (-0.21 km/s)
- Rendezvous with Apophis in: 1064 days🪨 Relative to Apophis
- Distance (km): 304,682,644.56 km (+112,774.39 km)
- Distance (AU): 2.04 (+0.00)
- Light travel time: 16 min 56.34 s (+0.38 s)🌎 Relative to Earth
- Distance (km): 51,825,220.91 km (-3,924,925.83 km)
- Distance (AU): 0.35 (-0.03)
- Light travel time: 2 min 52.88 s (-13.09 s) -
Today in the Planetary Science Journal:
Schettino & Rossi 2026, "Potential Interaction of 99942 Apophis with the High Earth Orbit Population during the 2029 Close Approach" - https://iopscience.iop.org/article/10.3847/PSJ/ae5dc3
Please do not put any orbital debris where #Apophis might run into it.
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2026-05-15 13:00:00 UTC (Delta: 2026-05-08)
WHERE IS OSIRIS-APEX?
- Barycentric speed: 23.53 km/s (-0.25 km/s)
- Rendezvous with Apophis in: 1071 days🪨 Relative to Apophis
- Distance (km): 304,569,870.18 km (+662,934.33 km)
- Distance (AU): 2.04 (+0.00)
- Light travel time: 16 min 55.97 s (+2.21 s)🌎 Relative to Earth
- Distance (km): 55,750,146.74 km (-4,238,487.65 km)
- Distance (AU): 0.37 (-0.03)
- Light travel time: 3 min 5.97 s (-14.14 s)
