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Location: Narrabri
(30.3170°S, 149.7830°E)
Time: 17:20:47


On September 23 2017, the interplanetary probe OSIRIS-REx will fly past the Earth. The Earth will give it a "gravity assist" and put it on a trajectory to reach the asteroid Bennu. If you know where to look and live in the right part of the world, you will have a chance to see it through binoculars or a telescope.

Click on a table row to load a finder chart corresponding to that time, or alternatively, you can go straight to a finder chart for a time near closest approach by clicking here.

Flyby data
Time of closest approachSep 23, 02:51:45
Distance of closest approach23,596 km
Speed at closest approach8.520 km/s
Speed at infinity (rel. to Earth)6.229 km/s

Position Table (click on a row of the table to load a finder chart)

Time Distance (km) Brightness Altitude Azimuth Right ascension Declination Constellation Sun altitude
Sep 22, 21:00:00143,41413.141.0°75.6°0h 15.6m-9° 51'Cetus-38.9°
Sep 22, 21:30:00131,14212.948.1°70.8°0h 13.9m-10° 49'Cetus-44.5°
Sep 22, 22:00:00118,92512.755.3°64.9°0h 11.7m-11° 59'Cetus-49.5°
Sep 22, 22:30:00106,77512.562.4°57.1°0h 8.9m-13° 23'Cetus-53.9°
Sep 22, 23:00:0094,70712.269.3°45.7°0h 5.2m-15° 9'Cetus-57.2°
Sep 22, 23:30:0082,74411.975.7°25.6°0h 0.3m-17° 23'Cetus-59.3°
Sep 23, 00:00:0070,92011.679.6°345.3°23h 53.5m-20° 20'Aquarius-59.7°
Sep 23, 00:30:0059,30311.377.2°294.8°23h 43.6m-24° 24'Aquarius-58.5°
Sep 23, 01:00:0048,04210.969.1°264.2°23h 27.8m-30° 16'Sculptor-55.9°
Sep 23, 01:30:0037,48510.457.0°243.8°22h 58.6m-39° 12'Grus-52.0°
Sep 23, 02:00:0028,54410.038.9°224.6°21h 47.7m-52° 44'Indus-47.4°
Sep 23, 02:30:0023,4379.812.0°202.4°18h 7.9m-62° 20'Pavo-42.1°
Sep 23, 03:00:0024,89210.5-16.3°175.3°14h 40.2m-43° 6'Lupus-36.4°
Sep 23, 03:30:0031,84911.7-30.8°146.6°13h 33.3m-21° 5'Virgo-30.4°
Sep 23, 04:00:0041,32112.9-32.7°123.1°13h 4.3m-7° 4'Virgo-24.2°
Sep 23, 04:30:0051,75513.7-29.0°106.7°12h 47.8m1° 41'Virgo-17.9°
Sep 23, 05:00:0062,57014.2-23.4°95.2°12h 36.7m7° 29'Virgo-11.5°
Sep 23, 05:30:0073,54714.4-17.1°86.5°12h 28.6m11° 35'Virgo-5.1°
Sep 23, 06:00:0084,59614.5-10.8°79.4°12h 22.3m14° 36'Coma Berenices1.4°
Sep 23, 06:30:0095,68314.7-4.5°73.1°12h 17.1m16° 55'Coma Berenices7.9°
Sep 23, 07:00:00106,79714.81.5°67.3°12h 12.7m18° 45'Coma Berenices14.3°
Sep 23, 07:30:00117,93815.07.3°61.5°12h 8.8m20° 14'Coma Berenices20.7°
Sep 23, 08:00:00129,11115.112.7°55.7°12h 5.5m21° 27'Coma Berenices27.0°
Sep 23, 08:30:00140,32215.217.7°49.5°12h 2.4m22° 28'Coma Berenices33.1°
Sep 23, 09:00:00151,58015.422.2°43.0°11h 59.7m23° 19'Coma Berenices38.9°