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Asteroid 2015 BN509

Asteroid 2015 BN509 is currently in the constellation of Cancer. The current Right Ascension of Asteroid 2015 BN509 is 08h 30m 55s and the Declination is +15° 58’ 55” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid 2015 BN509 is 23.74 (JPL).

Summary of key facts about Asteroid 2015 BN509 [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]:

08h 30m 55s
+15° 58’ 55”
  • 2015 BN509 is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the West direction at an altitude of 28° above the horizon.
  • Given its current magnitude, 2015 BN509 is visible only through long exposure photography.
  • See also 2015 BN509 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 2015 BN509 available on TheSkyLive:

Available Resources

Asteroid 2015 BN509 Position and Finder Charts

Below we provide Asteroid 2015 BN509 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 2015 BN509 in Cancer on October, 27 2020
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid 2015 BN509 in Cancer on October, 27 2020
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 2015 BN509 is right now. Click on the image to see a more detailed fullscreen tracker view.

2015 BN509
RA: 08h 30m 55s
Dec: +15° 58’ 55”
Deep sky finder chart for Asteroid 2015 BN509
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 2015 BN509?, a page that provides all the information needed to find Asteroid 2015 BN509 in the sky and additional links to sky charts.

Asteroid 2015 BN509 Distance from Earth

The distance of Asteroid 2015 BN509 from Earth is currently 187,760,267 kilometers, equivalent to 1.255100 Astronomical Units. Light takes 10 minutes and 26.3008 seconds to travel from Asteroid 2015 BN509 and arrive to us.

10 minutes and 26.3008 seconds

The following chart shows the distance of Asteroid 2015 BN509 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 2015 BN509 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 2015 BN509 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Asteroid 2015 BN509 to Earth

Between January 2013 and December 2100, the closest approach of Asteroid 2015 BN509 to Earth happens on Sat Feb 10 2018 at a distance of 0.033030 Astronomical Units, or 4,941,279 kilometers:

Sat Feb 10 2018

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

Asteroid 2015 BN509 brightness

The current visual magnitude of Asteroid 2015 BN509 is 23.74.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 2015 BN509, 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 2015 BN509 between January 2013 and December 2100

Asteroid 2015 BN509 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 2015 BN509 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 74.1°
Max altitude: 54.5°
Azimuth: 286.0°

The rise and set times are defined as the time at which the upper limb of Asteroid 2015 BN509 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 2015 BN509 Orbital Elements

The following table lists the orbital elements of Asteroid 2015 BN509 at epoch 30 May 2020 00:00 UTC (JD: 2459000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.56846891
Orbit inclination i 4.15399237°
Perihelion distance q 0.43433512 AU
64,975,609 km
Aphelion distance Q 1.57866061 AU
236,164,266 km
Semi-major axis a 1.00649786 AU
150,569,937 km
Orbital period period 1.0100 years
368.8228 days
Date of perihelion transit Tp 2020-Apr-15 02:15:51
2,458,954.5944 JD
Next perihelion transit 2021-Apr-18 22:00
2,459,323.4171 JD
Argument of perihelion peri 143.1979500714°
Longitude of the ascending node node 120.11445933053°
Mean anomaly M 44.807520689756°
Mean motion n 0.97607859°/day

Visualization of Asteroid 2015 BN509 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 2015 BN509 with respect of the Sun and the orbits of the major planets. The position of Asteroid 2015 BN509 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 2015 BN509
View Asteroid 2015 BN509 in the 3D Solar System Simulator

Asteroid 2015 BN509 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 2015 BN509 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 2015 BN509 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Oct 20 08h 19m 56s +16° 38’ 08” 23.88 Cancer
2020 Oct 21 08h 21m 29s +16° 32’ 52” 23.86 Cancer
2020 Oct 22 08h 22m 59s +16° 27’ 36” 23.85 Cancer
2020 Oct 23 08h 24m 29s +16° 22’ 19” 23.83 Cancer
2020 Oct 24 08h 25m 58s +16° 17’ 03” 23.81 Cancer
2020 Oct 25 08h 27m 25s +16° 11’ 47” 23.79 Cancer
2020 Oct 26 08h 28m 53s +16° 06’ 30” 23.77 Cancer
2020 Oct 27 08h 30m 19s +16° 01’ 15” 23.75 Cancer
2020 Oct 28 08h 31m 44s +15° 56’ 00” 23.72 Cancer
2020 Oct 29 08h 33m 09s +15° 50’ 47” 23.70 Cancer
2020 Oct 30 08h 34m 32s +15° 45’ 33” 23.68 Cancer
2020 Oct 31 08h 35m 54s +15° 40’ 22” 23.66 Cancer
2020 Nov 01 08h 37m 17s +15° 35’ 11” 23.63 Cancer
2020 Nov 02 08h 38m 38s +15° 30’ 02” 23.61 Cancer