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Asteroid 2012 TC4

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Asteroid 2012 TC4 Position

Asteroid 2012 TC4 is currently in the constellation of Aquarius. The current Right Ascension is 23h 03m 31s and the Declination is -04° 19’ 42”.

23h 03m 31s
-04° 19’ 42”

Simplified sky chart showing where Asteroid 2012 TC4 is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Asteroid 2012 TC4 in Aquarius on December, 14 2019
Field of view: 60x30 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]

Hihgher precision deep sky finder chart showing where Asteroid 2012 TC4 is right now (view fullscreen)

2012 TC4
RA: 23h 03m 31s
Dec: -04° 19’ 42”
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

The distance of Asteroid 2012 TC4 from Earth is currently 37,457,690 kilometers, equivalent to 0.250389 Astronomical Units. Light takes 2 minutes and 4.9454 seconds to travel from Asteroid 2012 TC4 and arrive to us.

2 minutes and 4.9454 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.

Distance of Asteroid 2012 TC4 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 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 January 2013 and December 2100 the closest approach of Asteroid 2012 TC4 to Earth happens on Thu Oct 12 2017 at a distance of 0.00100917 Astronomical Units, or 150,969 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 26.54.


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.

Predicted magnitude of Asteroid 2012 TC4 between January 2013 and December 2100

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

Azimuth: 94.6°
Max altitude: 34.1°
Azimuth: 265.7°
Asteroid 2012 TC4 is above the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Asteroid 2012 TC4 touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Asteroid 2012 TC4 Orbital Elements

The following table lists the orbital elements of Asteroid 2012 TC4 at epoch 30 September 2017 00:00 UTC (JD: 2458027.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.33607838
Orbit inclination i 0.85717234°
Perihelion distance q 0.93353169 AU
139,654,353 km
Aphelion distance Q 1.87864270 AU
281,040,948 km
Semi-major axis a 1.40608719 AU
210,347,650 km
Orbital period period 1.6700 years
608.9993 days
Date of perihelion transit Tp 2017-Nov-16 00:45:42
2,458,073.5317 JD
Next perihelion transit 2019-Jul-18 00:44
2,458,682.5311 JD
Argument of perihelion peri 222.58388030278°
Longitude of the ascending node node 198.23273433597°
Mean anomaly M 332.78908664834°
Mean motion n 0.59113367°/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
2019 Dec 07 22h 20m 06s -09° 05’ 34” 26.79 Aquarius
2019 Dec 08 22h 25m 14s -08° 32’ 49” 26.76 Aquarius
2019 Dec 09 22h 30m 29s -07° 59’ 04” 26.73 Aquarius
2019 Dec 10 22h 35m 51s -07° 24’ 20” 26.70 Aquarius
2019 Dec 11 22h 41m 17s -06° 48’ 35” 26.67 Aquarius
2019 Dec 12 22h 46m 50s -06° 11’ 49” 26.64 Aquarius
2019 Dec 13 22h 52m 29s -05° 34’ 02” 26.61 Aquarius
2019 Dec 14 22h 58m 15s -04° 55’ 14” 26.57 Aquarius
2019 Dec 15 23h 04m 09s -04° 15’ 28” 26.54 Aquarius
2019 Dec 16 23h 10m 08s -03° 34’ 41” 26.51 Aquarius
2019 Dec 17 23h 16m 13s -02° 52’ 59” 26.47 Pisces
2019 Dec 18 23h 22m 24s -02° 10’ 20” 26.44 Pisces
2019 Dec 19 23h 28m 44s -01° 26’ 49” 26.41 Pisces
2019 Dec 20 23h 35m 08s -00° 42’ 28” 26.37 Pisces