Asteroid 1I/2017 U1 (Oumuamua)

Asteroid 1I/2017 U1 (Oumuamua) is currently in the constellation of Pegasus. The current Right Ascension of Asteroid 1I/2017 U1 (Oumuamua) is 23h 55m 24s and the Declination is +24° 39’ 54” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current magnitude of Asteroid 1I/2017 U1 (Oumuamua) is 37.88 (JPL).

Today's rise, transit and set times of Asteroid 1I/2017 U1 (Oumuamua) from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

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Available Resources

• Position and finder charts (see also Where is Asteroid 1I/2017 U1 (Oumuamua)?)
• Distance from Earth (see also How far is Asteroid 1I/2017 U1 (Oumuamua) from Earth?)
• When does Asteroid 1I/2017 U1 (Oumuamua) rise and set?
• Brightness (see also How bright is Asteroid 1I/2017 U1 (Oumuamua)?)
• Orbital elements. Detailed information about Asteroid 1I/2017 U1 (Oumuamua) orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Asteroid 1I/2017 U1 (Oumuamua) with respect to the major Solar System objects.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Asteroid 1I/2017 U1 (Oumuamua) for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Asteroid 1I/2017 U1 (Oumuamua) in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Asteroid 1I/2017 U1 (Oumuamua) with your telescope or on your astrophotographies.

Higher precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 1I/2017 U1 (Oumuamua) is right now. Click on the image to see a more detailed fullscreen tracker view.

Also check out Where is Asteroid 1I/2017 U1 (Oumuamua)?, a page that provides all the information needed to find Asteroid 1I/2017 U1 (Oumuamua) in the sky and additional links to sky charts.

Asteroid 1I/2017 U1 (Oumuamua) Distance from Earth

The distance of Asteroid 1I/2017 U1 (Oumuamua) from Earth is currently 5,472,051,838 kilometers, equivalent to 36.578407 Astronomical Units. Light takes 5 hours, 4 minutes and 12.8002 seconds to travel from Asteroid 1I/2017 U1 (Oumuamua) and arrive to us.

The following chart shows the distance of Asteroid 1I/2017 U1 (Oumuamua) from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 1I/2017 U1 (Oumuamua) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Asteroid 1I/2017 U1 (Oumuamua) to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Asteroid 1I/2017 U1 (Oumuamua) to Earth happens on Sun Oct 15 2017 at a distance of 0.161991 Astronomical Units, or 24,233,513 kilometers:

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Asteroid 1I/2017 U1 (Oumuamua) Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 1I/2017 U1 (Oumuamua), according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Visualization of Asteroid 1I/2017 U1 (Oumuamua) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 1I/2017 U1 (Oumuamua) with respect of the Sun and the orbits of the major planets. The position of Asteroid 1I/2017 U1 (Oumuamua) and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Asteroid 1I/2017 U1 (Oumuamua) 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 1I/2017 U1 (Oumuamua) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 1I/2017 U1 (Oumuamua) in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2023 Sep 24	23h 56m 12s	+24° 44’ 44”	37.87	Pegasus
2023 Sep 25	23h 56m 05s	+24° 44’ 07”	37.87	Pegasus
2023 Sep 26	23h 55m 59s	+24° 43’ 28”	37.87	Pegasus
2023 Sep 27	23h 55m 53s	+24° 42’ 51”	37.87	Pegasus
2023 Sep 28	23h 55m 45s	+24° 42’ 11”	37.87	Pegasus
2023 Sep 29	23h 55m 40s	+24° 41’ 32”	37.88	Pegasus
2023 Sep 30	23h 55m 32s	+24° 40’ 53”	37.88	Pegasus
2023 Oct 01	23h 55m 27s	+24° 40’ 12”	37.88	Pegasus
2023 Oct 02	23h 55m 19s	+24° 39’ 29”	37.88	Pegasus
2023 Oct 03	23h 55m 14s	+24° 38’ 48”	37.88	Pegasus
2023 Oct 04	23h 55m 06s	+24° 38’ 06”	37.88	Pegasus
2023 Oct 05	23h 55m 00s	+24° 37’ 23”	37.89	Pegasus
2023 Oct 06	23h 54m 53s	+24° 36’ 38”	37.89	Pegasus
2023 Oct 07	23h 54m 47s	+24° 35’ 54”	37.89	Pegasus