Your guide to the Solar System
🌎 Location: Greenwich, United Kingdom [change]
Dwarf Planets and Asteroids » 

Asteroid A/2017 U7

Available Resources

Asteroid A/2017 U7 Position

Asteroid A/2017 U7 is currently in the constellation of Sagittarius. The current Right Ascension is 20h 10m 56s and the Declination is -30° 09’ 06”.

20h 10m 56s
-30° 09’ 06”

Simplified sky chart showing where Asteroid A/2017 U7 is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Asteroid A/2017 U7 in Sagittarius on March, 28 2020
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]

Higher precision deep sky finder chart showing where Asteroid A/2017 U7 is right now (view fullscreen)

A/2017 U7
RA: 20h 10m 56s
Dec: -30° 09’ 06”
Deep sky finder chart for Asteroid A/2017 U7
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid A/2017 U7?, a page that provides all the information needed to find Asteroid A/2017 U7 in the sky and additional links to sky charts.

Asteroid A/2017 U7 Distance

The distance of Asteroid A/2017 U7 from Earth is currently 1,021,802,980 kilometers, equivalent to 6.830331 Astronomical Units. Light takes 56 minutes and 48.3679 seconds to travel from Asteroid A/2017 U7 and arrive to us.

56 minutes and 48.3679 seconds

The following chart shows the distance of Asteroid A/2017 U7 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 A/2017 U7 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 A/2017 U7 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Asteroid A/2017 U7 to Earth

Between January 2013 and December 2100 the closest approach of Asteroid A/2017 U7 to Earth happens on Fri Aug 2 2019 at a distance of 5.49289452 Astronomical Units, or 821,725,326 kilometers:

Fri Aug 2 2019

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

Asteroid A/2017 U7 brightness

The current visual magnitude of Asteroid A/2017 U7 is 19.47.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid A/2017 U7, 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 A/2017 U7 between January 2013 and December 2100

Asteroid A/2017 U7 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 A/2017 U7 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 120.2°
Max altitude: 8.4°
Azimuth: 239.8°
Asteroid A/2017 U7 is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Asteroid A/2017 U7 touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Asteroid A/2017 U7 Orbital Elements

The following table lists the orbital elements of Asteroid A/2017 U7 at epoch 10 January 2019 00:00 UTC (JD: 2458494.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00081572
Orbit inclination i 142.63634329°
Perihelion distance q 6.41754148 AU
960,050,542 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2019-Sep-10 22:46:22
2,458,737.4489 JD
Argument of perihelion peri 326.00245566963°
Longitude of the ascending node node 276.2303541161°
Mean anomaly M -0.00034314400271245°
Mean motion n 0.00000141°/day

Visualization of Asteroid A/2017 U7 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid A/2017 U7 with respect of the Sun and the orbits of the major planets. The position of Asteroid A/2017 U7 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 A/2017 U7
View Asteroid A/2017 U7 in the 3D Solar System Simulator

Asteroid A/2017 U7 15 Days Ephemeris

The following table lists the ephemerides of Asteroid A/2017 U7 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid A/2017 U7 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Mar 21 20h 11m 16s -30° 18’ 21” 19.49 Sagittarius
2020 Mar 22 20h 11m 16s -30° 17’ 02” 19.48 Sagittarius
2020 Mar 23 20h 11m 15s -30° 15’ 43” 19.48 Sagittarius
2020 Mar 24 20h 11m 12s -30° 14’ 27” 19.48 Sagittarius
2020 Mar 25 20h 11m 09s -30° 13’ 14” 19.48 Sagittarius
2020 Mar 26 20h 11m 07s -30° 12’ 02” 19.48 Sagittarius
2020 Mar 27 20h 11m 03s -30° 10’ 53” 19.48 Sagittarius
2020 Mar 28 20h 10m 59s -30° 09’ 45” 19.47 Sagittarius
2020 Mar 29 20h 10m 54s -30° 08’ 39” 19.47 Sagittarius
2020 Mar 30 20h 10m 49s -30° 07’ 36” 19.47 Sagittarius
2020 Mar 31 20h 10m 41s -30° 06’ 33” 19.47 Sagittarius
2020 Apr 01 20h 10m 35s -30° 05’ 35” 19.46 Sagittarius
2020 Apr 02 20h 10m 27s -30° 04’ 36” 19.46 Sagittarius
2020 Apr 03 20h 10m 19s -30° 03’ 42” 19.46 Sagittarius