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Asteroid 1998 OR2

Asteroid 1998 OR2 is currently in the constellation of Cetus. The current Right Ascension of Asteroid 1998 OR2 is 00h 32m 29s and the Declination is +00° 37’ 31” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid 1998 OR2 is 22.28 (JPL).

Summary of key facts about Asteroid 1998 OR2 [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

00h 32m 29s
+00° 37’ 31”
  • 1998 OR2 is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the East-South-East direction at an altitude of 19° above the horizon.
  • Given its current magnitude, 1998 OR2 is visible only through long exposure photography.
  • See also 1998 OR2 rise and set times.
  • 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.

Additional information about Asteroid 1998 OR2 available on TheSkyLive:

Available Resources

Asteroid 1998 OR2 Position and Finder Charts

Below we provide Asteroid 1998 OR2 finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Asteroid 1998 OR2 in Cetus on May, 15 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid 1998 OR2 in Cetus on May, 15 2021
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 1998 OR2 is right now. Click on the image to see a more detailed fullscreen tracker view.

1998 OR2
RA: 00h 32m 29s
Dec: +00° 37’ 31”
Deep sky finder chart for Asteroid 1998 OR2
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 1998 OR2?, a page that provides all the information needed to find Asteroid 1998 OR2 in the sky and additional links to sky charts.

Asteroid 1998 OR2 Distance from Earth

The distance of Asteroid 1998 OR2 from Earth is currently 580,865,193 kilometers, equivalent to 3.882844 Astronomical Units. Light takes 32 minutes and 17.5577 seconds to travel from Asteroid 1998 OR2 and arrive to us.

32 minutes and 17.5577 seconds

The following chart shows the distance of Asteroid 1998 OR2 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.

Distance of Asteroid 1998 OR2 from Earth between January 2013 and December 2100

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 1998 OR2 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Asteroid 1998 OR2 to Earth

Between January 2013 and December 2100, the closest approach of Asteroid 1998 OR2 to Earth happens on Mon Apr 17 2079 at a distance of 0.012028 Astronomical Units, or 1,799,335 kilometers:

Mon Apr 17 2079

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

Asteroid 1998 OR2 brightness

The current visual magnitude of Asteroid 1998 OR2 is 22.28.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 1998 OR2, 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.

Predicted magnitude of Asteroid 1998 OR2 between January 2013 and December 2100

Asteroid 1998 OR2 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 1998 OR2 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 89.4°
Max altitude: 39.2°
Azimuth: 270.7°

The rise and set times are defined as the time at which the upper limb of Asteroid 1998 OR2 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 1998 OR2 Orbital Elements

The following table lists the orbital elements of Asteroid 1998 OR2 at epoch 16 December 2020 00:00 UTC (JD: 2459200.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.57324580
Orbit inclination i 5.86638314°
Perihelion distance q 1.01755393 AU
152,223,902 km
Aphelion distance Q 3.75125176 AU
561,179,276 km
Semi-major axis a 2.38440284 AU
356,701,589 km
Orbital period period 3.6800 years
1,344.8315 days
Date of perihelion transit Tp 2020-Apr-15 19:40:16
2,458,955.3196 JD
Next perihelion transit 2023-Dec-21 15:37
2,460,300.1511 JD
Argument of perihelion peri 174.58291383281°
Longitude of the ascending node node 26.985099282822°
Mean anomaly M 65.632705542336°
Mean motion n 0.26769153°/day

Visualization of Asteroid 1998 OR2 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 1998 OR2 with respect of the Sun and the orbits of the major planets. The position of Asteroid 1998 OR2 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!

Orbit Diagram of Asteroid 1998 OR2
View Asteroid 1998 OR2 in the 3D Solar System Simulator

Asteroid 1998 OR2 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 1998 OR2 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 1998 OR2 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 May 08 00h 25m 27s -00° 08’ 08” 22.25 Pisces
2021 May 09 00h 26m 26s -00° 01’ 39” 22.26 Cetus
2021 May 10 00h 27m 25s +00° 04’ 48” 22.26 Cetus
2021 May 11 00h 28m 24s +00° 11’ 12” 22.27 Cetus
2021 May 12 00h 29m 23s +00° 17’ 32” 22.27 Cetus
2021 May 13 00h 30m 21s +00° 23’ 50” 22.27 Cetus
2021 May 14 00h 31m 19s +00° 30’ 05” 22.28 Cetus
2021 May 15 00h 32m 17s +00° 36’ 15” 22.28 Cetus
2021 May 16 00h 33m 14s +00° 42’ 24” 22.28 Cetus
2021 May 17 00h 34m 09s +00° 48’ 28” 22.29 Cetus
2021 May 18 00h 35m 05s +00° 54’ 29” 22.29 Cetus
2021 May 19 00h 36m 01s +01° 00’ 25” 22.29 Cetus
2021 May 20 00h 36m 56s +01° 06’ 20” 22.30 Cetus
2021 May 21 00h 37m 50s +01° 12’ 10” 22.30 Cetus