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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:36  ☀️ Transit: 13:02  🌅 Sunset: 19:29

Asteroid 2012 TC4

Asteroid 2012 TC4 is currently in the constellation of Sagittarius. The current Right Ascension of Asteroid 2012 TC4 is 18h 18m 02s and the Declination is -23° 50’ 48” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid 2012 TC4 is 30.91 (JPL).

18h 18m 02s
-23° 50’ 48”

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

Azimuth: 113.8°
Max altitude: 14.7°
Azimuth: 246.2°
  • 2012 TC4 is above the horizon from Greenwich, United Kingdom [change].
  • Right now it is placed in the South-South-West direction at an altitude of 9° 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.

Available Resources

Asteroid 2012 TC4 Position and Finder Charts

Below we provide Asteroid 2012 TC4 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 2012 TC4 in Sagittarius on April, 01 2023
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid 2012 TC4 in Sagittarius on April, 01 2023
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 2012 TC4 is right now. Click on the image to see a more detailed fullscreen tracker view.

2012 TC4
RA: 18h 18m 02s
Dec: -23° 50’ 48”
Deep sky finder chart for Asteroid 2012 TC4
Field of view: 60x40 arcmins
View fullscreen

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.

Asteroid 2012 TC4 Distance from Earth

The distance of Asteroid 2012 TC4 from Earth is currently 272,262,421 kilometers, equivalent to 1.819962 Astronomical Units. Light takes 15 minutes and 8.1697 seconds to travel from Asteroid 2012 TC4 and arrive to us.

15 minutes and 8.1697 seconds

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 of Asteroid 2012 TC4 to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Asteroid 2012 TC4 to Earth happens on Thu Oct 12 2017 at a distance of 0.001009 Astronomical Units, or 150,973 kilometers:

Thu Oct 12 2017

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

Asteroid 2012 TC4 Brightness

The current visual magnitude of Asteroid 2012 TC4 is 30.91.


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

Asteroid 2012 TC4 Orbital Elements

The following table lists the orbital elements of Asteroid 2012 TC4 at epoch 24 February 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.40388371
Orbit inclination i 0.53461574°
Perihelion distance q 0.96597444 AU
144,507,720 km
Aphelion distance Q 2.27491816 AU
340,322,914 km
Semi-major axis a 1.62044630 AU
242,415,317 km
Orbital period period 2.0628 years
753.4430 days
Date of perihelion transit Tp 2024-Jan-11 22:18:11
2,460,321.4293 JD
Argument of perihelion peri 26.525695953657°
Longitude of the ascending node node 19.719098619017°
Mean anomaly M 206.65787485296°
Mean motion n 0.47780656°/day

Visualization of Asteroid 2012 TC4 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 2012 TC4 with respect of the Sun and the orbits of the major planets. The position of Asteroid 2012 TC4 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 2012 TC4
View Asteroid 2012 TC4 in the 3D Solar System Simulator

Asteroid 2012 TC4 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. Click on each row of the table to locate Asteroid 2012 TC4 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Mar 25 18h 10m 05s -23° 51’ 11” 31.06 Sagittarius
2023 Mar 26 18h 11m 13s -23° 51’ 11” 31.04 Sagittarius
2023 Mar 27 18h 12m 20s -23° 51’ 11” 31.02 Sagittarius
2023 Mar 28 18h 13m 27s -23° 51’ 07” 31.00 Sagittarius
2023 Mar 29 18h 14m 32s -23° 51’ 03” 30.98 Sagittarius
2023 Mar 30 18h 15m 37s -23° 50’ 58” 30.96 Sagittarius
2023 Mar 31 18h 16m 40s -23° 50’ 53” 30.94 Sagittarius
2023 Apr 01 18h 17m 42s -23° 50’ 47” 30.92 Sagittarius
2023 Apr 02 18h 18m 42s -23° 50’ 39” 30.90 Sagittarius
2023 Apr 03 18h 19m 41s -23° 50’ 30” 30.88 Sagittarius
2023 Apr 04 18h 20m 39s -23° 50’ 22” 30.86 Sagittarius
2023 Apr 05 18h 21m 37s -23° 50’ 13” 30.84 Sagittarius
2023 Apr 06 18h 22m 32s -23° 50’ 03” 30.82 Sagittarius
2023 Apr 07 18h 23m 26s -23° 49’ 54” 30.80 Sagittarius