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Near Earth Objects » 

Asteroid (NEO) 2015 XH55

Below the horizon.  Rise: 5:01 | Tran: 8:58 | Set: 12:55
Alt: -21.87°   Az: 98.39°   Direction: East
Please note: this information pertains to a Near-Earth Object (NEO). During close approaches, our current computational model is not able to provide an accurate position, due to the high speeds of these objects. We plan to refine our algorithms to improve accuracy in the future. JPL Horizons can compute precise positions in these situations.

Asteroid (NEO) 2015 XH55 is in the constellation of Sagittarius, at a distance of 213,056,893.0 kilometers from Earth. The current Right Ascension is 18h 43m 20s and the Declination is -22° 04’ 20” (apparent coordinates). The magnitude of Asteroid (NEO) 2015 XH55 is 31.77 (data provided by JPL Horizons).

Finder Charts

Map showing Asteroid (NEO) 2015 XH55 in Sagittarius on February, 16 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid (NEO) 2015 XH55 in Sagittarius on February, 16 2025. Field of view: 15x9 degrees. View in interactive sky chart

Also check out Where is Asteroid (NEO) 2015 XH55?, a page that provides all the information needed to find Asteroid (NEO) 2015 XH55 in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

18h 43m 20s
-22° 04’ 20”
17h 28m 42s
12h 12m 03s

J2000

18h 41m 50s
-22° 05’ 53”

Additional Information

Sagittarius
31.77

Rise and Set Times

Today's rise, transit and set times of Asteroid (NEO) 2015 XH55 from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 112.1°
Max altitude: 16.5°
Azimuth: 247.9°
  • 2015 XH55 is below the horizon from Greenwich, UK.
  • Given its current magnitude, 2015 XH55 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 (NEO) 2015 XH55 from Earth is currently 213,056,893.0 kilometers, equivalent to 1.4241973633 Astronomical Units. Light takes 11m 50.681s to travel from Asteroid (NEO) 2015 XH55 and arrive to us.

213,056,893.0
1.4241973633
11m 50.681s

The following chart shows the distance of Asteroid (NEO) 2015 XH55 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 (NEO) 2015 XH55 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.

Closest Approach

During the next 10 years, the closest approach of Asteroid (NEO) 2015 XH55 to Earth happens on Thu Nov 28 2030 at a distance of 0.007072 Astronomical Units, or 1,058,018 kilometers:

Thu Nov 28 2030
1,058,018
0.007072

Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2015 XH55, 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 (NEO) 2015 XH55 as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2015 XH55 at epoch 16 October 2024 00:00 UTC (JD: 2460600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.21197131
Orbit inclination i 5.18805148°
Perihelion distance q 0.82517163 AU
123,443,920 km
Aphelion distance Q 1.26909637 AU
189,854,115 km
Semi-major axis a 1.04713400 AU
156,649,017 km
Orbital period period 1.0715 years
391.3829 days
Date of perihelion transit Tp 2024-Apr-16 21:52:53
2,460,417.4117 JD
Next perihelion transit 2025-May-13 07:04
2,460,808.7946 JD
Argument of perihelion peri 268.65074488017°
Longitude of the ascending node node 70.697985497743°
Mean anomaly M 168.40740862916°
Mean motion n 0.91981541°/day

Orbit Visualization

Orbit Diagram of Asteroid (NEO) 2015 XH55
View Asteroid (NEO) 2015 XH55 in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 2015 XH55 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 Feb 09 18h 11m 39s -22° 01’ 35” 31.83 Sagittarius
2025 Feb 10 18h 16m 04s -22° 03’ 20” 31.82 Sagittarius
2025 Feb 11 18h 20m 29s -22° 04’ 39” 31.82 Sagittarius
2025 Feb 12 18h 24m 56s -22° 05’ 31” 31.81 Sagittarius
2025 Feb 13 18h 29m 23s -22° 05’ 56” 31.80 Sagittarius
2025 Feb 14 18h 33m 52s -22° 05’ 54” 31.79 Sagittarius
2025 Feb 15 18h 38m 21s -22° 05’ 26” 31.78 Sagittarius
2025 Feb 16 18h 42m 52s -22° 04’ 28” 31.77 Sagittarius
2025 Feb 17 18h 47m 25s -22° 03’ 03” 31.76 Sagittarius
2025 Feb 18 18h 51m 58s -22° 01’ 10” 31.75 Sagittarius
2025 Feb 19 18h 56m 32s -21° 58’ 47” 31.74 Sagittarius
2025 Feb 20 19h 01m 07s -21° 55’ 57” 31.74 Sagittarius
2025 Feb 21 19h 05m 43s -21° 52’ 36” 31.73 Sagittarius
2025 Feb 22 19h 10m 20s -21° 48’ 46” 31.72 Sagittarius

Additional Resources