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Dwarf Planets and Asteroids » 

Asteroid A/2017 U7

Below the horizon.  Rise: 23:15 | Tran: 6:28 | Set: 13:36
Alt: -9.31°   Az: 53.80°   Direction: North-East

Asteroid A/2017 U7 is in the constellation of Serpens, at a distance of 2,050,192,571.0 kilometers from Earth. The current Right Ascension is 15h 34m 43s and the Declination is +13° 40’ 23” (apparent coordinates). The magnitude of Asteroid A/2017 U7 is 21.09 (data provided by JPL Horizons).

Finder Charts

Map showing Asteroid A/2017 U7 in Serpens on February, 06 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid A/2017 U7 in Serpens on February, 06 2025. Field of view: 15x9 degrees. View in interactive sky chart

High 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: 15h 33m 33s
Dec: +13° 45’ 22”
Deep sky finder chart for Asteroid A/2017 U7. Field of view: 60x40 arcmins. View in deep sky object tracker

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.

Celestial Coordinates

Apparent

15h 34m 43s
+13° 40’ 23”
15h 40m 11s
07h 14m 54s

J2000

15h 33m 33s
+13° 45’ 22”

Additional Information

Serpens
21.09

Rise and Set Times

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

Azimuth: 76.3°
Max altitude: 52.2°
Azimuth: 283.7°
  • A/2017 U7 is below the horizon from Greenwich, UK.
  • 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.

Distance from Earth

The distance of Asteroid A/2017 U7 from Earth is currently 2,050,192,571.0 kilometers, equivalent to 13.7046908583 Astronomical Units. Light takes 1h 53m 58.706s to travel from Asteroid A/2017 U7 and arrive to us.

2,050,192,571.0
13.7046908583
1h 53m 58.706s

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

Between 1 January 2000 and 31 December 2099, the closest approach of Asteroid A/2017 U7 to Earth happens on Fri Aug 2 2019 at a distance of 5.492952 Astronomical Units, or 821,733,894 kilometers:

Fri Aug 2 2019
821,733,894
5.492952

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 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

Orbital Elements

The following table lists the orbital elements of Asteroid A/2017 U7 at epoch 07 January 2020 00:00 UTC (JD: 2458856.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00164840
Orbit inclination i 142.63521868°
Perihelion distance q 6.41751019 AU
960,045,862 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 17:19:45
2,458,738.2221 JD
Argument of perihelion peri 326.06899422804°
Longitude of the ascending node node 276.23235254662°
Mean anomaly M 0.00047990051701852°
Mean motion n 0.00000406°/day

Orbit Visualization

Orbit Diagram of Asteroid A/2017 U7
View Asteroid A/2017 U7 in the 3D Solar System Simulator

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. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2025 Jan 30 15h 34m 44s +13° 17’ 42” 21.10 Serpens
2025 Jan 31 15h 34m 45s +13° 20’ 28” 21.10 Serpens
2025 Feb 01 15h 34m 46s +13° 23’ 15” 21.10 Serpens
2025 Feb 02 15h 34m 46s +13° 26’ 05” 21.09 Serpens
2025 Feb 03 15h 34m 46s +13° 28’ 56” 21.09 Serpens
2025 Feb 04 15h 34m 45s +13° 31’ 49” 21.09 Serpens
2025 Feb 05 15h 34m 45s +13° 34’ 43” 21.09 Serpens
2025 Feb 06 15h 34m 44s +13° 37’ 39” 21.09 Serpens
2025 Feb 07 15h 34m 43s +13° 40’ 37” 21.09 Serpens
2025 Feb 08 15h 34m 41s +13° 43’ 36” 21.09 Serpens
2025 Feb 09 15h 34m 39s +13° 46’ 37” 21.09 Serpens
2025 Feb 10 15h 34m 37s +13° 49’ 38” 21.09 Serpens
2025 Feb 11 15h 34m 34s +13° 52’ 42” 21.09 Serpens
2025 Feb 12 15h 34m 32s +13° 55’ 46” 21.09 Serpens

Additional Resources