Asteroid 1999 KW4

Asteroid 1999 KW4 is currently in the constellation of Sagittarius. The current Right Ascension of Asteroid 1999 KW4 is 18h 50m 07s and the Declination is -15° 50’ 06” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid 1999 KW4 is 19.17 (JPL).

Summary of key facts about Asteroid 1999 KW4 [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]:

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Additional information about Asteroid 1999 KW4 available on TheSkyLive:

Available Resources

• Position and finder charts (see also Where is Asteroid 1999 KW4?)
• Distance from Earth (see also How far is Asteroid 1999 KW4 from Earth?)
• Rise and set times (see also When does Asteroid 1999 KW4 rise and set?)
• Brightness (see also How bright is Asteroid 1999 KW4?)
• Orbital elements. Detailed information about Asteroid 1999 KW4 orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Asteroid 1999 KW4 with respect to the major Solar System objects.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Asteroid 1999 KW4 for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Asteroid 1999 KW4 in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Asteroid 1999 KW4 with your telescope or on your astrophotographies.

Higher precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 1999 KW4 is right now. Click on the image to see a more detailed fullscreen tracker view.

Also check out Where is Asteroid 1999 KW4?, a page that provides all the information needed to find Asteroid 1999 KW4 in the sky and additional links to sky charts.

Asteroid 1999 KW4 Distance from Earth

The distance of Asteroid 1999 KW4 from Earth is currently 283,245,086 kilometers, equivalent to 1.893376 Astronomical Units. Light takes 15 minutes and 44.8039 seconds to travel from Asteroid 1999 KW4 and arrive to us.

The following chart shows the distance of Asteroid 1999 KW4 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.

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 1999 WK4 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Asteroid 1999 KW4 to Earth

Between January 2013 and December 2100, the closest approach of Asteroid 1999 KW4 to Earth happens on Mon May 26 2036 at a distance of 0.016363 Astronomical Units, or 2,447,892 kilometers:

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

Asteroid 1999 KW4 brightness

The current visual magnitude of Asteroid 1999 KW4 is 19.17.

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 1999 KW4, 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.

Asteroid 1999 KW4 rise and set times

Today's Asteroid 1999 KW4 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

The rise and set times are defined as the time at which the upper limb of Asteroid 1999 KW4 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.

Visualization of Asteroid 1999 KW4 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 1999 KW4 with respect of the Sun and the orbits of the major planets. The position of Asteroid 1999 KW4 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!

Asteroid 1999 KW4 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 1999 KW4 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 1999 KW4 in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2021 Jan 17	18h 27m 56s	-17° 29’ 47”	19.17	Sagittarius
2021 Jan 18	18h 30m 54s	-17° 17’ 09”	19.17	Sagittarius
2021 Jan 19	18h 33m 51s	-17° 04’ 18”	19.17	Sagittarius
2021 Jan 20	18h 36m 51s	-16° 51’ 10”	19.17	Sagittarius
2021 Jan 21	18h 39m 50s	-16° 37’ 47”	19.17	Sagittarius
2021 Jan 22	18h 42m 48s	-16° 24’ 10”	19.17	Sagittarius
2021 Jan 23	18h 45m 50s	-16° 10’ 17”	19.17	Sagittarius
2021 Jan 24	18h 48m 50s	-15° 56’ 07”	19.17	Sagittarius
2021 Jan 25	18h 51m 51s	-15° 41’ 42”	19.16	Scutum
2021 Jan 26	18h 54m 53s	-15° 26’ 59”	19.16	Scutum
2021 Jan 27	18h 57m 56s	-15° 12’ 01”	19.15	Scutum
2021 Jan 28	19h 01m 00s	-14° 56’ 45”	19.15	Sagittarius
2021 Jan 29	19h 04m 05s	-14° 41’ 13”	19.14	Sagittarius
2021 Jan 30	19h 07m 10s	-14° 25’ 23”	19.14	Sagittarius