Asteroid 1I/2017 U1 (Oumuamua)
Asteroid 1I/2017 U1 (Oumuamua) Position
Asteroid 1I/2017 U1 (Oumuamua) is currently in the constellation of Pegasus. The current Right Ascension is 23h 50m 51s and the Declination is +21° 29’ 09”.
Simplified sky chart showing where Asteroid 1I/2017 U1 (Oumuamua) is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)
Field of view: 60x30 degrees
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Higher precision deep sky finder chart showing where Asteroid 1I/2017 U1 (Oumuamua) is right now (view fullscreen)
Field of view: 60x40 arcmins
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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
The distance of Asteroid 1I/2017 U1 (Oumuamua) from Earth is currently 2,438,240,762 kilometers, equivalent to 16.298633 Astronomical Units. Light takes 2 hours, 15 minutes and 33.0957 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 January 2013 and December 2100 the closest approach of Asteroid 1I/2017 U1 (Oumuamua) to Earth happens on Sun Oct 15 2017 at a distance of 0.16199099 Astronomical Units, or 24,233,507 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Asteroid 1I/2017 U1 (Oumuamua) brightness
The current visual magnitude of Asteroid 1I/2017 U1 (Oumuamua) is 34.48.
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.
Asteroid 1I/2017 U1 (Oumuamua) rise and set times
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Today's Asteroid 1I/2017 U1 (Oumuamua) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):
The rise and set times are defined as the time at which the upper limb of Asteroid 1I/2017 U1 (Oumuamua) touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.
Asteroid 1I/2017 U1 (Oumuamua) Orbital Elements
The following table lists the orbital elements of Asteroid 1I/2017 U1 (Oumuamua) at epoch 22 November 2017 00:00 UTC (JD: 2458080.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 1.20113380 |
| Orbit inclination | i | 122.74170628° |
| Perihelion distance | q | 0.25591158 AU 38,283,828 km |
| Aphelion distance | Q | n.a. |
| Semi-major axis | a | n.a. |
| Orbital period | period | n.a. |
| Date of perihelion transit | Tp | 2017-Sep-09 12:10:32 2,458,006.0073 JD |
| Argument of perihelion | peri | 241.81053603049° |
| Longitude of the ascending node | node | 24.596909555232° |
| Mean anomaly | M | 51.157619793825° |
| Mean motion | n | 0.68674695°/day |
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!
View Asteroid 1I/2017 U1 (Oumuamua) in the 3D Solar System Simulator
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 |
|---|---|---|---|---|
| 2020 Jan 15 | 23h 49m 59s | +21° 31’ 42” | 34.44 | Pegasus |
| 2020 Jan 16 | 23h 50m 04s | +21° 31’ 14” | 34.44 | Pegasus |
| 2020 Jan 17 | 23h 50m 12s | +21° 30’ 48” | 34.45 | Pegasus |
| 2020 Jan 18 | 23h 50m 20s | +21° 30’ 25” | 34.46 | Pegasus |
| 2020 Jan 19 | 23h 50m 26s | +21° 30’ 03” | 34.46 | Pegasus |
| 2020 Jan 20 | 23h 50m 35s | +21° 29’ 44” | 34.47 | Pegasus |
| 2020 Jan 21 | 23h 50m 41s | +21° 29’ 26” | 34.47 | Pegasus |
| 2020 Jan 22 | 23h 50m 49s | +21° 29’ 11” | 34.48 | Pegasus |
| 2020 Jan 23 | 23h 50m 57s | +21° 28’ 58” | 34.48 | Pegasus |
| 2020 Jan 24 | 23h 51m 06s | +21° 28’ 45” | 34.49 | Pegasus |
| 2020 Jan 25 | 23h 51m 15s | +21° 28’ 36” | 34.49 | Pegasus |
| 2020 Jan 26 | 23h 51m 24s | +21° 28’ 28” | 34.49 | Pegasus |
| 2020 Jan 27 | 23h 51m 33s | +21° 28’ 23” | 34.50 | Pegasus |
| 2020 Jan 28 | 23h 51m 42s | +21° 28’ 19” | 34.50 | Pegasus |