We use cookies to deliver essential features and to measure their performance. Learn more.
Love TheSkyLive? Donate Now!
public LocationGreenwich, UK
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
wb_twilight   (Astronomical Twilight)   What's Visible Now?
Dwarf Planets and Asteroids » 

Asteroid 2015 TB145

Above the horizon.  Rise: 2:16 | Tran: 7:26 | Set: 12:36
Alt: 10.30°   Az: 119.78°   Direction: East-South-East

Asteroid 2015 TB145 is in the constellation of Cetus, at a distance of 371,684,230.0 kilometers from Earth. The current Right Ascension is 02h 36m 18s and the Declination is -09° 27’ 58” (apparent coordinates). The magnitude of Asteroid 2015 TB145 is 25.22 (data provided by JPL Horizons).

Finder chart of 2015 TB145 in Cetus on July,24 2024
Map showing Asteroid 2015 TB145 in Cetus on July, 24 2024. Field of view: 50x30 degrees
View interactive star map

Celestial Coordinates


02h 36m 18s
-09° 27’ 58”
20h 00m 07s
22h 36m 25s


02h 35m 06s
-09° 34’ 21”

Additional Information


Rise and Set Times

Today's rise, transit and set times of Asteroid 2015 TB145 from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 99.5°
Max altitude: 29.0°
Azimuth: 260.5°
  • 2015 TB145 is above the horizon from Greenwich, UK.
  • Right now it is placed in the East-South-East direction at an altitude of 10.30° above the horizon.
  • Given its current magnitude, 2015 TB145 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 2015 TB145
Sky map showing Asteroid 2015 TB145 in Cetus on July, 24 2024. Field of view: 10x6 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 2015 TB145 is right now. Click on the image to see a more detailed fullscreen tracker view.

2015 TB145
RA: 02h 35m 06s
Dec: -09° 34’ 21”
Deep sky finder chart for Asteroid 2015 TB145. Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Asteroid 2015 TB145?, a page that provides all the information needed to find Asteroid 2015 TB145 in the sky and additional links to sky charts.

Distance from Earth

The distance of Asteroid 2015 TB145 from Earth is currently 371,684,230.0 kilometers, equivalent to 2.4845556174 Astronomical Units. Light takes 20m 39.805s to travel from Asteroid 2015 TB145 and arrive to us.

20m 39.805s

The following chart shows the distance of Asteroid 2015 TB145 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 2015 TB145 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 2015 TB145 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 2015 TB145 to Earth happens on Sun Nov 1 2015 at a distance of 0.006724 Astronomical Units, or 1,005,856 kilometers:

Sun Nov 1 2015

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 2015 TB145, 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 2015 TB145 as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid 2015 TB145 at epoch 24 February 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.86000796
Orbit inclination i 39.72271011°
Perihelion distance q 0.29412412 AU
44,000,342 km
Aphelion distance Q 3.90788779 AU
584,611,694 km
Semi-major axis a 2.10100596 AU
314,306,018 km
Orbital period period 3.0454 years
1,112.3446 days
Date of perihelion transit Tp 2022-Jan-12 16:19:28
2,459,592.1802 JD
Next perihelion transit 2025-Jan-29 00:35
2,460,704.5248 JD
Argument of perihelion peri 121.80958554389°
Longitude of the ascending node node 37.62481737408°
Mean anomaly M 132.14891455088°
Mean motion n 0.32364071°/day

Orbit Visualization

Orbit Diagram of Asteroid 2015 TB145
View Asteroid 2015 TB145 in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Asteroid 2015 TB145 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
2024 Jul 17 02h 31m 09s -09° 21’ 45” 25.37 Cetus
2024 Jul 18 02h 31m 55s -09° 22’ 12” 25.35 Cetus
2024 Jul 19 02h 32m 39s -09° 22’ 47” 25.33 Cetus
2024 Jul 20 02h 33m 23s -09° 23’ 30” 25.31 Cetus
2024 Jul 21 02h 34m 07s -09° 24’ 22” 25.28 Cetus
2024 Jul 22 02h 34m 50s -09° 25’ 22” 25.26 Cetus
2024 Jul 23 02h 35m 32s -09° 26’ 31” 25.24 Cetus
2024 Jul 24 02h 36m 14s -09° 27’ 49” 25.22 Cetus
2024 Jul 25 02h 36m 54s -09° 29’ 16” 25.20 Cetus
2024 Jul 26 02h 37m 34s -09° 30’ 51” 25.17 Cetus
2024 Jul 27 02h 38m 14s -09° 32’ 36” 25.15 Cetus
2024 Jul 28 02h 38m 52s -09° 34’ 31” 25.13 Cetus
2024 Jul 29 02h 39m 30s -09° 36’ 34” 25.10 Cetus
2024 Jul 30 02h 40m 07s -09° 38’ 48” 25.08 Cetus

Additional Resources