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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:58 
Transit: 13:04 
Sunset: 21:09
sunny   (Daytime)   What's Visible Now?
Dwarf Planets and Asteroids » 

Asteroid 1998 OR2

Above the horizon.  Rise: 23:57 | Tran: 4:56 | Set: 9:51
Altitude: 15.5°   Azimuth: 225.4°   Direction: South-West

Asteroid 1998 OR2 is in the constellation of Aquarius, at a distance of 241,889,237 kilometers from Earth. The current Right Ascension is 23h 23m 46s and the Declination is -12° 03’ 45” (apparent coordinates). The magnitude of Asteroid 1998 OR2 is 19.97 (data provided by JPL Horizons).

Finder chart of 1998 OR2 in Aquarius on July,13 2024
Map showing Asteroid 1998 OR2 in Aquarius on July, 13 2024. Field of view: 50x30 degrees
View interactive star map

Celestial Coordinates

Apparent

23h 23m 46s
-12° 03’ 45”

J2000

23h 22m 29s
-12° 11’ 50”

Additional Information

Aquarius
19.97

Rise and Set Times

Today's rise, transit and set times of Asteroid 1998 OR2 from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 102.2°
Max altitude: 26.3°
Azimuth: 257.8°
  • 1998 OR2 is above the horizon from Greenwich, UK.
  • Right now it is placed in the South-West direction at an altitude of 16° above the horizon.
  • Given its current magnitude, 1998 OR2 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.

Finder Charts

Finder chart of 1998 OR2
Sky map showing Asteroid 1998 OR2 in Aquarius on July, 13 2024. Field of view: 10x6 degrees. View in interactive sky chart

High 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: 23h 22m 29s
Dec: -12° 11’ 50”
Deep sky finder chart for Asteroid 1998 OR2. Field of view: 60x40 arcmins. View in deep sky object tracker

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.

Distance from Earth

The distance of Asteroid 1998 OR2 from Earth is currently 241,889,237 kilometers, equivalent to 1.616930 Astronomical Units. Light takes 13 minutes and 26.8556 seconds to travel from Asteroid 1998 OR2 and arrive to us.

241,889,237
1.616930
13 minutes and 26.8556 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.

Chart of the distance of Asteroid 1998 OR2 from Earth in Astronomical Units (au)

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

Between 1 January 2013 and 30 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 1,799,340 kilometers:

Mon Apr 17 2079
1,799,340
0.012028

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 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.

Chart of the magnitude of Asteroid 1998 OR2 as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid 1998 OR2 at epoch 24 February 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.57540175
Orbit inclination i 5.87820372°
Perihelion distance q 1.01074111 AU
151,204,719 km
Aphelion distance Q 3.75018813 AU
561,020,160 km
Semi-major axis a 2.38046462 AU
356,112,439 km
Orbital period period 3.6728 years
1,341.5011 days
Date of perihelion transit Tp 2023-Dec-19 12:27:40
2,460,298.0192 JD
Next perihelion transit 2027-Aug-22 00:29
2,461,639.5203 JD
Argument of perihelion peri 174.5804742614°
Longitude of the ascending node node 26.941546107138°
Mean anomaly M 280.1589026554°
Mean motion n 0.26835610°/day

Orbit Visualization

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

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.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2024 Jul 06 23h 24m 33s -11° 45’ 39” 20.04 Aquarius
2024 Jul 07 23h 24m 23s -11° 48’ 41” 20.03 Aquarius
2024 Jul 08 23h 24m 10s -11° 51’ 54” 20.02 Aquarius
2024 Jul 09 23h 23m 54s -11° 55’ 17” 20.01 Aquarius
2024 Jul 10 23h 23m 39s -11° 58’ 50” 20.00 Aquarius
2024 Jul 11 23h 23m 20s -12° 02’ 35” 19.99 Aquarius
2024 Jul 12 23h 22m 59s -12° 06’ 29” 19.98 Aquarius
2024 Jul 13 23h 22m 36s -12° 10’ 33” 19.97 Aquarius
2024 Jul 14 23h 22m 12s -12° 14’ 48” 19.96 Aquarius
2024 Jul 15 23h 21m 46s -12° 19’ 13” 19.95 Aquarius
2024 Jul 16 23h 21m 18s -12° 23’ 47” 19.94 Aquarius
2024 Jul 17 23h 20m 47s -12° 28’ 29” 19.93 Aquarius
2024 Jul 18 23h 20m 14s -12° 33’ 21” 19.91 Aquarius
2024 Jul 19 23h 19m 41s -12° 38’ 22” 19.90 Aquarius

Additional Resources