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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:55  
clear_day Transit: 12:49  
SunsetSet: 18:41 south
sleep NighttimeWhat's Visible Now
Dwarf Planets and Asteroids » 

Asteroid 2012 TC4

Altitude: -32.3°   Azimuth: 271.2°   Direction: West

Asteroid 2012 TC4 is currently in the constellation of Ophiucus. The current Right Ascension of Asteroid 2012 TC4 is 17h 41m 24s and the Declination is -23° 58’ 21” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current magnitude of Asteroid 2012 TC4 is 29.54 (JPL).

17h 41m 24s
-23° 58’ 21”

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

Azimuth: 114.0°
Max altitude: 14.5°
Azimuth: 246.0°
  • 2012 TC4 is below the horizon from Greenwich, United Kingdom edit_location_alt.
  • 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.

Finder chart of 2012 TC4 in Ophiucus on September,29 2023
Map showing Asteroid 2012 TC4 in Ophiucus on September, 29 2023
Field of view: 50x30 degrees
View fullscreen
Finder chart of 2012 TC4
Map showing Asteroid 2012 TC4 in Ophiucus on September, 29 2023
Field of view: 10x6 degrees
View fullscreen

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: 17h 41m 24s
Dec: -23° 58’ 21”
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 177,366,194 kilometers, equivalent to 1.185620 Astronomical Units. Light takes 9 minutes and 51.6299 seconds to travel from Asteroid 2012 TC4 and arrive to us.

9 minutes and 51.6299 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 and 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

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 Sep 22 17h 28m 36s -23° 53’ 18” 29.53 Ophiucus
2023 Sep 23 17h 30m 20s -23° 54’ 11” 29.53 Ophiucus
2023 Sep 24 17h 32m 06s -23° 55’ 00” 29.54 Ophiucus
2023 Sep 25 17h 33m 54s -23° 55’ 46” 29.54 Ophiucus
2023 Sep 26 17h 35m 43s -23° 56’ 30” 29.54 Ophiucus
2023 Sep 27 17h 37m 33s -23° 57’ 10” 29.54 Ophiucus
2023 Sep 28 17h 39m 26s -23° 57’ 44” 29.54 Ophiucus
2023 Sep 29 17h 41m 21s -23° 58’ 15” 29.54 Ophiucus
2023 Sep 30 17h 43m 18s -23° 58’ 42” 29.54 Ophiucus
2023 Oct 01 17h 45m 17s -23° 59’ 04” 29.54 Sagittarius
2023 Oct 02 17h 47m 17s -23° 59’ 21” 29.53 Sagittarius
2023 Oct 03 17h 49m 19s -23° 59’ 32” 29.53 Sagittarius
2023 Oct 04 17h 51m 24s -23° 59’ 39” 29.53 Sagittarius
2023 Oct 05 17h 53m 30s -23° 59’ 39” 29.53 Sagittarius