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🌎  Greenwich, United Kingdom [change]

Asteroid A/2017 U7

Asteroid A/2017 U7 is currently in the constellation of Serpens. The current Right Ascension of Asteroid A/2017 U7 is 16h 08m 31s and the Declination is -00° 14’ 04” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid A/2017 U7 is 19.23 (JPL).

Summary of key facts about Asteroid A/2017 U7 [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

16h 08m 31s
-00° 14’ 04”
  • A/2017 U7 is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-West direction at an altitude of 24° above the horizon.
  • Given its current magnitude, A/2017 U7 is visible only through long exposure photography.
  • See also A/2017 U7 rise and set times.
  • 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.

Additional information about Asteroid A/2017 U7 available on TheSkyLive:

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 Serpens on September, 30 2022
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid A/2017 U7 in Serpens on September, 30 2022
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 08m 31s
Dec: -00° 14’ 04”
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 1,526,884,647 kilometers, equivalent to 10.206593 Astronomical Units. Light takes 1 hours, 24 minutes and 53.1390 seconds to travel from Asteroid A/2017 U7 and arrive to us.

1 hours, 24 minutes and 53.1390 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 5.492950 Astronomical Units, or 821,733,555 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 19.23.


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: 90.2°
Max altitude: 38.3°
Azimuth: 269.8°

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 02 January 2020 00:00 UTC (JD: 2458851.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00159171
Orbit inclination i 142.63525319°
Perihelion distance q 6.41748803 AU
960,042,546 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 16:41:26
2,458,738.1954 JD
Argument of perihelion peri 326.06681079719°
Longitude of the ascending node node 276.23232860192°
Mean anomaly M 0.00043621553244789°
Mean motion n 0.00000385°/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
2022 Sep 23 16h 07m 47s -00° 07’ 18” 19.19 Serpens
2022 Sep 24 16h 07m 51s -00° 08’ 11” 19.19 Serpens
2022 Sep 25 16h 07m 57s -00° 09’ 03” 19.20 Serpens
2022 Sep 26 16h 08m 02s -00° 09’ 56” 19.20 Serpens
2022 Sep 27 16h 08m 08s -00° 10’ 49” 19.21 Serpens
2022 Sep 28 16h 08m 13s -00° 11’ 40” 19.21 Serpens
2022 Sep 29 16h 08m 20s -00° 12’ 33” 19.22 Serpens
2022 Sep 30 16h 08m 26s -00° 13’ 23” 19.23 Serpens
2022 Oct 01 16h 08m 32s -00° 14’ 14” 19.23 Serpens
2022 Oct 02 16h 08m 39s -00° 15’ 05” 19.24 Serpens
2022 Oct 03 16h 08m 47s -00° 15’ 55” 19.24 Serpens
2022 Oct 04 16h 08m 54s -00° 16’ 44” 19.25 Serpens
2022 Oct 05 16h 09m 02s -00° 17’ 32” 19.25 Serpens
2022 Oct 06 16h 09m 11s -00° 18’ 20” 19.26 Serpens