#comet — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #comet, aggregated by home.social.
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2026-08-22 04:00:00 UTC (Delta: 2026-08-21)
☄️161P/HARTLEY-IRAS
- Barycentric speed: 29.39 km/s (+0.08 km/s)
- Perihelion in: 97 days
- Brightness (Mag): 16.11 (-0.08)
- Visibility: Both hemispheres | Medium telescope | Dark sky
- Constellation: Eridanus🌎 Relative to Earth
- Closest approach in: 40 days
- Distance (km): 186,416,697.43 km (-3,750,010.05 km)
- Distance (AU): 1.25 (-0.03)
- Light travel time: 10 min 21.82 s (-12.51 s) -
2026-08-22 04:00:00 UTC (Delta: 2026-08-21)
☄️169P/NEAT
- Barycentric speed: 42.53 km/s (+0.36 km/s)
- Perihelion in: 30 days
- Brightness (Mag): 14.00 (+0.00)
- Visibility: Northern hemisphere | Small telescope | Dark sky
- Constellation: Leo Minor🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 30,982,675.06 km (+1,062,985.68 km)
- Distance (AU): 0.21 (+0.01)
- Light travel time: 1 min 43.35 s (+3.55 s) -
2026-08-22 04:00:00 UTC (Delta: 2026-08-21)
☄️10P/TEMPEL 2
- Barycentric speed: 30.80 km/s (-0.02 km/s)
- Perihelion - occured
- Brightness (Mag): 12.78 (+0.02)
- Visibility: Southern hemisphere | Small telescope | Suburban sky
- Constellation: Piscis Austrinus🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 66,045,859.30 km (+421,838.83 km)
- Distance (AU): 0.44 (+0.00)
- Light travel time: 3 min 40.31 s (+1.41 s) -
2026-08-21 04:00:00 UTC (Delta: 2026-08-20)
☄️161P/HARTLEY-IRAS
- Barycentric speed: 29.31 km/s (+0.08 km/s)
- Perihelion in: 98 days
- Brightness (Mag): 15.95 (-0.08)
- Visibility: Both hemispheres | Medium telescope | Dark sky
- Constellation: Eridanus🌎 Relative to Earth
- Closest approach in: 41 days
- Distance (km): 190,167,504.50 km (-3,754,840.25 km)
- Distance (AU): 1.27 (-0.03)
- Light travel time: 10 min 34.33 s (-12.52 s) -
2026-08-21 04:00:00 UTC (Delta: 2026-08-20)
☄️169P/NEAT
- Barycentric speed: 42.17 km/s (+0.36 km/s)
- Perihelion in: 31 days
- Brightness (Mag): 14.00 (+0.00)
- Visibility: Northern hemisphere | Small telescope | Dark sky
- Constellation: Ursa Major🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 29,919,688.68 km (+968,922.26 km)
- Distance (AU): 0.20 (+0.01)
- Light travel time: 1 min 39.80 s (+3.23 s) -
2026-08-21 04:00:00 UTC (Delta: 2026-08-20)
☄️10P/TEMPEL 2
- Barycentric speed: 30.82 km/s (-0.02 km/s)
- Perihelion - occured
- Brightness (Mag): 12.76 (+0.02)
- Visibility: Southern hemisphere | Small telescope | Suburban sky
- Constellation: Piscis Austrinus🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 65,624,020.47 km (+399,757.32 km)
- Distance (AU): 0.44 (+0.00)
- Light travel time: 3 min 38.90 s (+1.33 s) -
2026-08-20 04:00:00 UTC (Delta: 2026-08-19)
☄️161P/HARTLEY-IRAS
- Barycentric speed: 29.23 km/s (+0.08 km/s)
- Perihelion in: 99 days
- Brightness (Mag): 16.03 (-0.08)
- Visibility: Both hemispheres | Medium telescope | Dark sky
- Constellation: Eridanus🌎 Relative to Earth
- Closest approach in: 42 days
- Distance (km): 193,922,344.76 km (-3,758,475.95 km)
- Distance (AU): 1.30 (-0.03)
- Light travel time: 10 min 46.86 s (-12.54 s) -
2026-08-20 04:00:00 UTC (Delta: 2026-08-19)
☄️169P/NEAT
- Barycentric speed: 41.82 km/s (+0.35 km/s)
- Perihelion in: 32 days
- Brightness (Mag): 14.00 (+0.00)
- Visibility: Northern hemisphere | Small telescope | Dark sky
- Constellation: Ursa Major🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 28,950,766.41 km (+870,815.96 km)
- Distance (AU): 0.19 (+0.01)
- Light travel time: 1 min 36.57 s (+2.90 s) -
2026-08-20 04:00:00 UTC (Delta: 2026-08-19)
☄️10P/TEMPEL 2
- Barycentric speed: 30.85 km/s (-0.02 km/s)
- Perihelion - occured
- Brightness (Mag): 12.75 (+0.02)
- Visibility: Southern hemisphere | Small telescope | Suburban sky
- Constellation: Piscis Austrinus🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 65,224,263.15 km (+377,438.77 km)
- Distance (AU): 0.44 (+0.00)
- Light travel time: 3 min 37.56 s (+1.26 s) -
2026-08-19 04:00:00 UTC (Delta: 2026-08-18)
☄️161P/HARTLEY-IRAS
- Barycentric speed: 29.15 km/s (+0.08 km/s)
- Perihelion in: 100 days
- Brightness (Mag): 16.10 (-0.08)
- Visibility: Both hemispheres | Medium telescope | Dark sky
- Constellation: Eridanus🌎 Relative to Earth
- Closest approach in: 43 days
- Distance (km): 197,680,820.71 km (-3,760,975.19 km)
- Distance (AU): 1.32 (-0.03)
- Light travel time: 10 min 59.39 s (-12.55 s) -
2026-08-19 04:00:00 UTC (Delta: 2026-08-18)
☄️169P/NEAT
- Barycentric speed: 41.47 km/s (+0.35 km/s)
- Perihelion in: 33 days
- Brightness (Mag): 14.00 (+0.00)
- Visibility: Northern hemisphere | Small telescope | Dark sky
- Constellation: Ursa Major🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 28,079,950.45 km (+768,714.32 km)
- Distance (AU): 0.19 (+0.01)
- Light travel time: 1 min 33.66 s (+2.56 s) -
2026-08-19 04:00:00 UTC (Delta: 2026-08-18)
☄️10P/TEMPEL 2
- Barycentric speed: 30.86 km/s (-0.02 km/s)
- Perihelion - occured
- Brightness (Mag): 12.73 (+0.01)
- Visibility: Southern hemisphere | Small telescope | Suburban sky
- Constellation: Piscis Austrinus🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 64,846,824.38 km (+354,881.22 km)
- Distance (AU): 0.43 (+0.00)
- Light travel time: 3 min 36.31 s (+1.18 s) -
2026-08-18 04:00:00 UTC (Delta: 2026-08-17)
☄️161P/HARTLEY-IRAS
- Barycentric speed: 29.07 km/s (+0.08 km/s)
- Perihelion in: 101 days
- Brightness (Mag): 16.18 (-0.08)
- Visibility: Both hemispheres | Medium telescope | Dark sky
- Constellation: Eridanus🌎 Relative to Earth
- Closest approach in: 44 days
- Distance (km): 201,441,795.90 km (-3,762,392.63 km)
- Distance (AU): 1.35 (-0.03)
- Light travel time: 11 min 11.94 s (-12.55 s) -
2026-08-18 04:00:00 UTC (Delta: 2026-08-17)
☄️169P/NEAT
- Barycentric speed: 41.12 km/s (+0.34 km/s)
- Perihelion in: 34 days
- Brightness (Mag): 14.00 (+0.00)
- Visibility: Northern hemisphere | Small telescope | Dark sky
- Constellation: Ursa Major🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 27,311,236.13 km (+662,824.95 km)
- Distance (AU): 0.18 (+0.00)
- Light travel time: 1 min 31.10 s (+2.21 s) -
2026-08-18 04:00:00 UTC (Delta: 2026-08-17)
☄️10P/TEMPEL 2
- Barycentric speed: 30.88 km/s (-0.02 km/s)
- Perihelion - occured
- Brightness (Mag): 12.72 (+0.01)
- Visibility: Southern hemisphere | Small telescope | Suburban sky
- Constellation: Piscis Austrinus🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 64,491,943.16 km (+332,084.33 km)
- Distance (AU): 0.43 (+0.00)
- Light travel time: 3 min 35.12 s (+1.11 s) -
2026-08-17 04:00:00 UTC (Delta: 2026-08-16)
☄️161P/HARTLEY-IRAS
- Barycentric speed: 28.99 km/s (+0.08 km/s)
- Perihelion in: 102 days
- Brightness (Mag): 16.26 (-0.07)
- Visibility: Both hemispheres | Medium telescope | Dark sky
- Constellation: Eridanus🌎 Relative to Earth
- Closest approach in: 45 days
- Distance (km): 205,204,188.53 km (-3,762,776.98 km)
- Distance (AU): 1.37 (-0.03)
- Light travel time: 11 min 24.49 s (-12.55 s) -
2026-08-17 04:00:00 UTC (Delta: 2026-08-16)
☄️169P/NEAT
- Barycentric speed: 40.78 km/s (+0.34 km/s)
- Perihelion in: 35 days
- Brightness (Mag): 14.00 (+1.00)
- Visibility: Northern hemisphere | Small telescope | Dark sky
- Constellation: Canes Venatici🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 26,648,411.18 km (+553,542.01 km)
- Distance (AU): 0.18 (+0.00)
- Light travel time: 1 min 28.89 s (+1.85 s) -
2026-08-17 04:00:00 UTC (Delta: 2026-08-16)
☄️10P/TEMPEL 2
- Barycentric speed: 30.90 km/s (-0.02 km/s)
- Perihelion - occured
- Brightness (Mag): 12.70 (+0.01)
- Visibility: Southern hemisphere | Small telescope | Suburban sky
- Constellation: Piscis Austrinus🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 64,159,858.83 km (+309,049.96 km)
- Distance (AU): 0.43 (+0.00)
- Light travel time: 3 min 34.01 s (+1.03 s) -
#Comet 220P/McNaught continues to look fabulous - to large instruments - following its outburst: https://www.facebook.com/photo/?fbid=2517447492105401 = the combined view a 16-inch and 8-inch telescopes on the morning of 16 August, by Michael Jäger and Gerald Rhemann.
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2026-08-16 04:00:00 UTC (Delta: 2026-08-15)
☄️161P/HARTLEY-IRAS
- Barycentric speed: 28.91 km/s (+0.08 km/s)
- Perihelion in: 103 days
- Brightness (Mag): 16.33 (-0.07)
- Visibility: Both hemispheres | Medium telescope | Dark sky
- Constellation: Eridanus🌎 Relative to Earth
- Closest approach in: 46 days
- Distance (km): 208,966,965.51 km (-3,762,171.38 km)
- Distance (AU): 1.40 (-0.03)
- Light travel time: 11 min 37.04 s (-12.55 s) -
2026-08-16 04:00:00 UTC (Delta: 2026-08-15)
☄️169P/NEAT
- Barycentric speed: 40.44 km/s (+0.33 km/s)
- Perihelion in: 36 days
- Brightness (Mag): 13.00 (+0.00)
- Visibility: Northern hemisphere | Small telescope | Suburban sky
- Constellation: Canes Venatici🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 26,094,869.17 km (+441,459.61 km)
- Distance (AU): 0.17 (+0.00)
- Light travel time: 1 min 27.04 s (+1.47 s) -
2026-08-16 04:00:00 UTC (Delta: 2026-08-15)
☄️10P/TEMPEL 2
- Barycentric speed: 30.92 km/s (-0.02 km/s)
- Perihelion - occured
- Brightness (Mag): 12.69 (+0.01)
- Visibility: Southern hemisphere | Small telescope | Suburban sky
- Constellation: Piscis Austrinus🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 63,850,808.87 km (+285,783.03 km)
- Distance (AU): 0.43 (+0.00)
- Light travel time: 3 min 32.98 s (+0.95 s) -
View of Comet from Lander During Descent
This image of comet 67P/Churyumov-Gerasimenko was taken by the Philae lander of the European Space Agency Rosetta mission during Philae descent toward the comet on Nov. 12, 2014 from a distance of approximate two miles three kilometers.
More: https://images.nasa.gov/details/PIA18874
Credit: Copyright: ESA/Rosetta/Philae/DLR#comet #rosetta #astrodon #astronomy #astrophotography #astrophysics
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2026-08-15 04:00:00 UTC (Delta: 2026-08-14)
☄️161P/HARTLEY-IRAS
- Barycentric speed: 28.83 km/s (+0.08 km/s)
- Perihelion in: 104 days
- Brightness (Mag): 16.41 (-0.07)
- Visibility: Both hemispheres | Medium telescope | Dark sky
- Constellation: Eridanus🌎 Relative to Earth
- Closest approach in: 47 days
- Distance (km): 212,729,136.89 km (-3,760,614.11 km)
- Distance (AU): 1.42 (-0.03)
- Light travel time: 11 min 49.59 s (-12.54 s) -
2026-08-15 04:00:00 UTC (Delta: 2026-08-14)
☄️169P/NEAT
- Barycentric speed: 40.10 km/s (+0.33 km/s)
- Perihelion in: 37 days
- Brightness (Mag): 13.00 (-0.49)
- Visibility: Northern hemisphere | Small telescope | Suburban sky
- Constellation: Canes Venatici🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 25,653,409.57 km (+327,367.47 km)
- Distance (AU): 0.17 (+0.00)
- Light travel time: 1 min 25.57 s (+1.09 s) -
2026-08-15 04:00:00 UTC (Delta: 2026-08-14)
☄️10P/TEMPEL 2
- Barycentric speed: 30.93 km/s (-0.01 km/s)
- Perihelion - occured
- Brightness (Mag): 12.68 (+0.01)
- Visibility: Southern hemisphere | Small telescope | Suburban sky
- Constellation: Piscis Austrinus🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 63,565,025.84 km (+262,292.51 km)
- Distance (AU): 0.42 (+0.00)
- Light travel time: 3 min 32.03 s (+0.87 s) -
2026-08-14 04:00:00 UTC (Delta: 2026-08-13)
☄️161P/HARTLEY-IRAS
- Barycentric speed: 28.75 km/s (+0.08 km/s)
- Perihelion in: 105 days
- Brightness (Mag): 16.48 (-0.07)
- Visibility: Both hemispheres | Medium telescope | Dark sky
- Constellation: Eridanus🌎 Relative to Earth
- Closest approach in: 48 days
- Distance (km): 216,489,751.00 km (-3,758,139.72 km)
- Distance (AU): 1.45 (-0.03)
- Light travel time: 12 min 2.13 s (-12.54 s) -
2026-08-14 04:00:00 UTC (Delta: 2026-08-13)
☄️169P/NEAT
- Barycentric speed: 39.77 km/s (+0.32 km/s)
- Perihelion in: 38 days
- Brightness (Mag): 13.49 (-0.01)
- Visibility: Northern hemisphere | Small telescope | Suburban sky
- Constellation: Canes Venatici🌎 Relative to Earth
- Closest approach - occurred
- Distance (km): 25,326,042.09 km (+212,225.97 km)
- Distance (AU): 0.17 (+0.00)
- Light travel time: 1 min 24.48 s (+0.71 s)
