Your guide to the Solar System and the night sky
By donating now you help keep this site alive and free from ads. Please consider supporting this project.
🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 5:52  ☀️ Transit: 12:04  🌅 Sunset: 18:18

Asteroid A/2017 U7

Asteroid A/2017 U7 is currently in the constellation of Hercules. The current Right Ascension of Asteroid A/2017 U7 is 16h 29m 02s and the Declination is +04° 25’ 52” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid A/2017 U7 is 19.47 (JPL).

16h 29m 02s
+04° 25’ 52”

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

Azimuth: 85.5°
Max altitude: 42.9°
Azimuth: 274.4°
  • A/2017 U7 is below the horizon from Greenwich, United Kingdom [change].
  • Given its current magnitude, A/2017 U7 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 A/2017 U7 Position and Finder Charts

Below we provide Asteroid A/2017 U7 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 A/2017 U7 in Hercules on March, 25 2023
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid A/2017 U7 in Hercules on March, 25 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 A/2017 U7 is right now. Click on the image to see a more detailed fullscreen tracker view.

A/2017 U7
RA: 16h 29m 02s
Dec: +04° 25’ 52”
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 from Earth

The distance of Asteroid A/2017 U7 from Earth is currently 1,496,421,379 kilometers, equivalent to 10.002959 Astronomical Units. Light takes 1 hours, 23 minutes and 11.5244 seconds to travel from Asteroid A/2017 U7 and arrive to us.

1 hours, 23 minutes and 11.5244 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.

Chart of the distance of Asteroid A/2017 U7 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 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 1 January 2013 and 30 December 2100, the closest approach of Asteroid A/2017 U7 to Earth happens on Fri Aug 2 2019 at a distance of 5.492951 Astronomical Units, or 821,733,791 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.

Chart of the magnitude of Asteroid A/2017 U7 as a function of time

Asteroid A/2017 U7 Orbital Elements

The following table lists the orbital elements of Asteroid A/2017 U7 at epoch 04 January 2020 00:00 UTC (JD: 2458853.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00161488
Orbit inclination i 142.63524235°
Perihelion distance q 6.41749738 AU
960,043,945 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2019-Sep-11 16:56:25
2,458,738.2058 JD
Argument of perihelion peri 326.06766279311°
Longitude of the ascending node node 276.23233456406°
Mean anomaly M 0.00045360100308687°
Mean motion n 0.00000393°/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
2023 Mar 18 16h 30m 55s +03° 55’ 22” 19.47 Hercules
2023 Mar 19 16h 30m 41s +03° 59’ 22” 19.47 Hercules
2023 Mar 20 16h 30m 28s +04° 03’ 24” 19.47 Hercules
2023 Mar 21 16h 30m 12s +04° 07’ 26” 19.47 Hercules
2023 Mar 22 16h 29m 58s +04° 11’ 27” 19.47 Hercules
2023 Mar 23 16h 29m 43s +04° 15’ 29” 19.47 Hercules
2023 Mar 24 16h 29m 27s +04° 19’ 32” 19.47 Hercules
2023 Mar 25 16h 29m 12s +04° 23’ 35” 19.47 Hercules
2023 Mar 26 16h 28m 55s +04° 27’ 38” 19.47 Hercules
2023 Mar 27 16h 28m 38s +04° 31’ 41” 19.47 Hercules
2023 Mar 28 16h 28m 22s +04° 35’ 44” 19.46 Hercules
2023 Mar 29 16h 28m 04s +04° 39’ 46” 19.46 Hercules
2023 Mar 30 16h 27m 46s +04° 43’ 49” 19.46 Hercules
2023 Mar 31 16h 27m 28s +04° 47’ 51” 19.46 Hercules