2017 OF201
2017 OF201 is a recently discovered trans-Neptunian object with a very
eccentric orbit (
2017 OF201 is in the constellation of
Triangulum,
at a distance of
Finder Charts
View interactive star map
High precision deep sky finder chart, 60 arcmin wide, showing where 2017 OF201 is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is 2017 OF201?, a page that provides all the information needed to find 2017 OF201 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 2017 OF201 from Greenwich, UK (all times relative to the local timezone Europe/London):
- 2017 OF201 is above the horizon from Greenwich, UK.
- Right now it is placed in the East direction at an altitude of 35.11° above the horizon.
- Given its current magnitude, 2017 OF201 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 customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.
Distance from Earth
The distance of 2017 OF201 from Earth is currently
The following chart shows the distance of 2017 OF201 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 2017 OF201 from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach
Between 1 January 2000 and 31 December 2099, the closest approach of 2017 OF201 to Earth happens on Wed Oct 11 2000 at a distance of 74.044156 Astronomical Units, or 11,076,848,044 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 2017 OF201, 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 2017 OF201 at epoch 04 May 2025 00:00 UTC (JD: 2460800.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.94851849 |
| Orbit inclination | i | 16.21143014° |
| Perihelion distance | q | 45.24779536 AU 6,768,973,854 km |
| Aphelion distance | Q |
1,712.57912860 AU 256,198,191,557 km |
| Semi-major axis | a |
878.91346198 AU 131,483,582,705 km |
| Orbital period | period |
26,057.1778 years 9,517,384.2038 days |
| Date of perihelion transit | Tp | 1930-Nov-26 14:57:46 2,426,307.1235 JD |
| Next perihelion transit | 27988-Aug-12 19:51 11,943,691.3272 JD |
|
| Argument of perihelion | peri | 338.16252827° |
| Longitude of the ascending node | node | 328.66675011002° |
| Mean anomaly | M | 1.3047298805574° |
| Mean motion | n | 0.00003783°/day |
View 2017 OF201 in the 3D Solar System Simulator
15 Days Ephemeris
The following table lists the ephemerides of 2017 OF201 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 |
|---|---|---|---|---|
| 2025 May 21 | 02h 01m 51s | +28° 25’ 41” | 23.19 | Triangulum |
| 2025 May 22 | 02h 01m 54s | +28° 25’ 59” | 23.19 | Triangulum |
| 2025 May 23 | 02h 01m 57s | +28° 26’ 17” | 23.19 | Triangulum |
| 2025 May 24 | 02h 01m 59s | +28° 26’ 35” | 23.19 | Triangulum |
| 2025 May 25 | 02h 02m 02s | +28° 26’ 53” | 23.19 | Triangulum |
| 2025 May 26 | 02h 02m 05s | +28° 27’ 11” | 23.19 | Triangulum |
| 2025 May 27 | 02h 02m 07s | +28° 27’ 29” | 23.20 | Triangulum |
| 2025 May 28 | 02h 02m 10s | +28° 27’ 47” | 23.20 | Triangulum |
| 2025 May 29 | 02h 02m 12s | +28° 28’ 05” | 23.20 | Triangulum |
| 2025 May 30 | 02h 02m 15s | +28° 28’ 24” | 23.20 | Triangulum |
| 2025 May 31 | 02h 02m 17s | +28° 28’ 42” | 23.20 | Triangulum |
| 2025 Jun 01 | 02h 02m 20s | +28° 29’ 00” | 23.20 | Triangulum |
| 2025 Jun 02 | 02h 02m 22s | +28° 29’ 18” | 23.20 | Triangulum |
| 2025 Jun 03 | 02h 02m 24s | +28° 29’ 36” | 23.20 | Triangulum |
Additional Resources on TheSkyLive
- 2017 OF201: Complete reference information on TheSkyLive.com.
- Where is 2017 OF201?: Key information on locating 2017 OF201 in the sky.
- Distance from Earth: Find out how far 2017 OF201 is from Earth right now.
- How Bright is 2017 OF201?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: 2017 OF201's rise and set times from your location.
- Interactive Sky Map: planetarium-style interactive visualization of 2017 OF201's position in the sky.
- Live Position Tracker: high precision position tracker with deep space imagery.
- Ephemeris: 15 days 2017 OF201's computed ephemeris.
- Orbital elements: information about 2017 OF201 orbital parameters.
- Orbit Visualization. 3d interactive visualization showing the orbit of 2017 OF201 with respect to the major Solar System objects.