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Comet 327P/Van Ness

Comet 327P/Van Ness is currently in the constellation of Bootes. The current Right Ascension of Comet 327P/Van Ness is 15h 01m 49s and the Declination is +20° 23’ 39” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 327P/Van Ness is 28.20 (JPL).

Summary of key facts about Comet 327P/Van Ness [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]:

15h 01m 49s
+20° 23’ 39”
  • 327P/Van Ness is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-South-East direction at an altitude of 57° above the horizon.
  • Given its current magnitude, 327P/Van Ness is visible only through long exposure photography.
  • See also 327P/Van Ness 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 Comet 327P/Van Ness available on TheSkyLive:

Available Resources

Comet 327P/Van Ness Position and Finder Charts

Below we provide Comet 327P/Van Ness 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 Comet 327P/Van Ness in Bootes on May, 07 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 327P/Van Ness in Bootes on May, 07 2021
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 Comet 327P/Van Ness is right now. Click on the image to see a more detailed fullscreen tracker view.

327P/Van Ness
RA: 15h 01m 49s
Dec: +20° 23’ 39”
Deep sky finder chart for Comet 327P/Van Ness
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 327P/Van Ness?, a page that provides all the information needed to find Comet 327P/Van Ness in the sky and additional links to sky charts.

Comet 327P/Van Ness Distance from Earth

The distance of Comet 327P/Van Ness from Earth is currently 469,580,932 kilometers, equivalent to 3.138955 Astronomical Units. Light takes 26 minutes and 6.3534 seconds to travel from Comet 327P/Van Ness and arrive to us.

26 minutes and 6.3534 seconds

The following chart shows the distance of Comet 327P/Van Ness 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 Comet 327P/Van Ness 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 327P/Van Ness from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 327P/Van Ness to Earth

Between January 2013 and December 2100, the closest approach of Comet 327P/Van Ness to Earth happens on Thu Sep 18 2042 at a distance of 0.572447 Astronomical Units, or 85,636,921 kilometers:

Thu Sep 18 2042

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

Comet 327P/Van Ness brightness

The current visual magnitude of Comet 327P/Van Ness is 28.20.


The observed magnitude and coma diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behavior of comets. When available, please refer to the Observed Magnitude value and consider the Estimated Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 327P/Van Ness, 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 Comet 327P/Van Ness between January 2013 and December 2100

Comet 327P/Van Ness rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Comet 327P/Van Ness rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 69.6°
Max altitude: 58.8°
Azimuth: 290.3°

The rise and set times are defined as the time at which the upper limb of Comet 327P/Van Ness 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.

Comet 327P/Van Ness Orbital Elements

The following table lists the orbital elements of Comet 327P/Van Ness at epoch 26 March 2009 00:00 UTC (JD: 2454917.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.56400192
Orbit inclination i 36.28205442°
Perihelion distance q 1.55123234 AU
232,061,056 km
Aphelion distance Q 5.56454361 AU
832,443,878 km
Semi-major axis a 3.55788798 AU
532,252,467 km
Orbital period period 6.7100 years
2,451.2456 days
Date of perihelion transit Tp 2009-Mar-21 17:13:11
2,454,912.2175 JD
Next perihelion transit 2015-Dec-06 23:06
2,457,363.4631 JD
Argument of perihelion peri 185.02213980987°
Longitude of the ascending node node 173.99914507925°
Mean anomaly M 0.77581041199143°
Mean motion n 0.14686411°/day

Visualization of Comet 327P/Van Ness Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 327P/Van Ness with respect of the Sun and the orbits of the major planets. The position of Comet 327P/Van Ness 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 Comet 327P/Van Ness
View Comet 327P/Van Ness in the 3D Solar System Simulator

Comet 327P/Van Ness 15 Days Ephemeris

The following table lists the ephemerides of Comet 327P/Van Ness computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 327P/Van Ness in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Apr 30 15h 07m 42s +19° 30’ 21” 28.31 Bootes
2021 May 01 15h 07m 00s +19° 37’ 41” 28.29 Bootes
2021 May 02 15h 06m 15s +19° 44’ 49” 28.28 Bootes
2021 May 03 15h 05m 31s +19° 51’ 47” 28.27 Bootes
2021 May 04 15h 04m 48s +19° 58’ 36” 28.25 Bootes
2021 May 05 15h 04m 03s +20° 05’ 12” 28.24 Bootes
2021 May 06 15h 03m 17s +20° 11’ 39” 28.23 Bootes
2021 May 07 15h 02m 33s +20° 17’ 53” 28.21 Bootes
2021 May 08 15h 01m 47s +20° 23’ 56” 28.20 Bootes
2021 May 09 15h 01m 03s +20° 29’ 48” 28.19 Bootes
2021 May 10 15h 00m 18s +20° 35’ 26” 28.18 Bootes
2021 May 11 14h 59m 31s +20° 40’ 54” 28.17 Bootes
2021 May 12 14h 58m 46s +20° 46’ 08” 28.15 Bootes
2021 May 13 14h 58m 01s +20° 51’ 11” 28.14 Bootes