Asteroid 1I/2017 U1 (Oumuamua)
Asteroid 1I/2017 U1 (Oumuamua) is in the constellation of
Pegasus,
at a distance of
Finder Charts
View interactive star map
High 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.
Celestial Coordinates
Apparent
J2000
Additional Information
Rise and Set Times
Today's rise,
transit and set times of
Asteroid 1I/2017 U1 (Oumuamua) from
Greenwich, UK (all times relative to the local timezone Europe/London):
Azimuth: 66.0°
Max altitude: 62.5°
Azimuth: 294.0°
- 1I/2017 U1 (Oumuamua) is
below the horizon from Greenwich, UK.
- Given its current magnitude, 1I/2017 U1 (Oumuamua) is visible only through long exposure photography.
- Go to interactive sky chart
If you need to access this information frequently for your observations, you can create a simple
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Distance from Earth
- 1I/2017 U1 (Oumuamua) is below the horizon from Greenwich, UK.
- Given its current magnitude, 1I/2017 U1 (Oumuamua) is visible only through long exposure photography.
- Go to interactive sky chart
The distance of Asteroid 1I/2017 U1 (Oumuamua) from Earth is currently
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
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.
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.
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 |
Orbit Visualization
View Asteroid 1I/2017 U1 (Oumuamua) in the 3D Solar System Simulator
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. Apparent celestial coordinates are provided.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2024 Dec 01 | 23h 52m 01s | +24° 04’ 48” | 38.68 | Pegasus |
| 2024 Dec 02 | 23h 51m 59s | +24° 04’ 08” | 38.68 | Pegasus |
| 2024 Dec 03 | 23h 51m 58s | +24° 03’ 27” | 38.69 | Pegasus |
| 2024 Dec 04 | 23h 51m 56s | +24° 02’ 47” | 38.69 | Pegasus |
| 2024 Dec 05 | 23h 51m 55s | +24° 02’ 07” | 38.69 | Pegasus |
| 2024 Dec 06 | 23h 51m 54s | +24° 01’ 27” | 38.70 | Pegasus |
| 2024 Dec 07 | 23h 51m 53s | +24° 00’ 48” | 38.70 | Pegasus |
| 2024 Dec 08 | 23h 51m 51s | +24° 00’ 10” | 38.70 | Pegasus |
| 2024 Dec 09 | 23h 51m 50s | +23° 59’ 32” | 38.70 | Pegasus |
| 2024 Dec 10 | 23h 51m 50s | +23° 58’ 54” | 38.71 | Pegasus |
| 2024 Dec 11 | 23h 51m 49s | +23° 58’ 17” | 38.71 | Pegasus |
| 2024 Dec 12 | 23h 51m 48s | +23° 57’ 40” | 38.71 | Pegasus |
| 2024 Dec 13 | 23h 51m 48s | +23° 57’ 04” | 38.71 | Pegasus |
| 2024 Dec 14 | 23h 51m 47s | +23° 56’ 28” | 38.72 | Pegasus |
Additional 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.