Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:59 
Transit: 12:56 
Sunset: 20:54
warning Set your observing location to get relevant data
wb_twilight   (Nautical Twilight)  
Planets Visible Tonight
Planets Visible Tonight
 • 
What's Visible Now • Tonight Sky
Search  close
Dwarf Planets and Asteroids » 

Asteroid 2012 TC4

Above the horizon.  Rise: 22:55 | Tran: 2:42 | Set: 6:23
Alt: 12.76°   Az: 196.48°   Direction: South-South-West

Asteroid 2012 TC4 is in the constellation of Ophiuchus, at a distance of 171,702,702.0 kilometers from Earth. The current Right Ascension is 17h 42m 03s and the Declination is -24° 10’ 54” (apparent coordinates). The magnitude of Asteroid 2012 TC4 is 29.34.

Finder Charts

Map showing Asteroid 2012 TC4 in Ophiuchus on May, 22 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid 2012 TC4 in Ophiuchus on May, 22 2025. Field of view: 15x9 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 2012 TC4 is right now. Click on the image to see a more detailed fullscreen tracker view.

2012 TC4
RA: 17h 40m 30s
Dec: -24° 10’ 13”
Deep sky finder chart for Asteroid 2012 TC4. Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Asteroid 2012 TC4?, a page that provides all the information needed to find Asteroid 2012 TC4 in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

17h 42m 03s
-24° 10’ 54”
01h 10m 36s
18h 52m 39s

J2000

17h 40m 30s
-24° 10’ 13”

Additional Information

Ophiuchus
29.34

Rise and Set Times

Today's rise, transit and set times of Asteroid 2012 TC4 from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 114.2°
Max altitude: 14.3°
Azimuth: 245.8°
  • 2012 TC4 is above the horizon from Greenwich, UK.
  • Right now it is placed in the South-South-West direction at an altitude of 12.76° above the horizon.
  • Given its current magnitude, 2012 TC4 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 Asteroid 2012 TC4 from Earth is currently 171,702,702.0 kilometers, equivalent to 1.1477616706 Astronomical Units. Light takes 9m 32.739s to travel from Asteroid 2012 TC4 and arrive to us.

171,702,702.0
1.1477616706
9m 32.739s

The following chart shows the distance of Asteroid 2012 TC4 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 2012 TC4 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 2012 TC4 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 Asteroid 2012 TC4 to Earth happens on Thu Oct 12 2017 at a distance of 0.001009 Astronomical Units, or 150,903 kilometers:

Thu Oct 12 2017
150,903
0.001009

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 2012 TC4, 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 2012 TC4 as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid 2012 TC4 at epoch 16 October 2024 00:00 UTC (JD: 2460600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.40390922
Orbit inclination i 0.53443475°
Perihelion distance q 0.96591057 AU
144,498,165 km
Aphelion distance Q 2.27490644 AU
340,321,160 km
Semi-major axis a 1.62040850 AU
242,409,662 km
Orbital period period 2.0627 years
753.4166 days
Date of perihelion transit Tp 2024-Jan-11 21:50:34
2,460,321.4101 JD
Next perihelion transit 2026-Feb-03 07:50
2,461,074.8267 JD
Argument of perihelion peri 26.54887567949°
Longitude of the ascending node node 19.70834489237°
Mean anomaly M 133.3556410329°
Mean motion n 0.47782328°/day
2h1>Orbit Visualization
Orbit Diagram of Asteroid 2012 TC4
View Asteroid 2012 TC4 in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Asteroid 2012 TC4 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 15 17h 49m 35s -24° 10’ 15” 29.60 Sagittarius
2025 May 16 17h 48m 39s -24° 10’ 28” 29.57 Sagittarius
2025 May 17 17h 47m 41s -24° 10’ 40” 29.53 Sagittarius
2025 May 18 17h 46m 40s -24° 10’ 48” 29.49 Sagittarius
2025 May 19 17h 45m 37s -24° 10’ 53” 29.46 Sagittarius
2025 May 20 17h 44m 31s -24° 10’ 57” 29.42 Ophiuchus
2025 May 21 17h 43m 23s -24° 10’ 57” 29.38 Ophiuchus
2025 May 22 17h 42m 12s -24° 10’ 55” 29.34 Ophiuchus
2025 May 23 17h 40m 59s -24° 10’ 49” 29.30 Ophiuchus
2025 May 24 17h 39m 43s -24° 10’ 39” 29.27 Ophiuchus
2025 May 25 17h 38m 25s -24° 10’ 24” 29.23 Ophiuchus
2025 May 26 17h 37m 05s -24° 10’ 07” 29.19 Ophiuchus
2025 May 27 17h 35m 42s -24° 09’ 46” 29.15 Ophiuchus
2025 May 28 17h 34m 17s -24° 09’ 19” 29.10 Ophiuchus

Additional Resources on TheSkyLive