Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Comet 29P/Schwassmann-Wachmann 1

Comet 29P/Schwassmann-Wachmann 1 is currently in the constellation of Aries. The current Right Ascension of Comet 29P/Schwassmann-Wachmann 1 is 02h 16m 49s and the Declination is +23° 56’ 16” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 29P/Schwassmann-Wachmann 1 is 15.81 (JPL).

Summary of key facts about Comet 29P/Schwassmann-Wachmann 1 [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]:

02h 16m 49s
+23° 56’ 16”
  • 29P/Schwassmann-Wachmann 1 is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-East direction at an altitude of 53° above the horizon.
  • Given its current magnitude, 29P/Schwassmann-Wachmann 1 is visible only through long exposure photography.
  • See also 29P/Schwassmann-Wachmann 1 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 29P/Schwassmann-Wachmann 1 available on TheSkyLive:

Available Resources

Comet 29P/Schwassmann-Wachmann 1 Position and Finder Charts

Below we provide Comet 29P/Schwassmann-Wachmann 1 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 29P/Schwassmann-Wachmann 1 in Aries on January, 21 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 29P/Schwassmann-Wachmann 1 in Aries on January, 21 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 29P/Schwassmann-Wachmann 1 is right now. Click on the image to see a more detailed fullscreen tracker view.

29P/Schwassmann-Wachmann 1
RA: 02h 16m 49s
Dec: +23° 56’ 16”
Deep sky finder chart for Comet 29P/Schwassmann-Wachmann 1
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 29P/Schwassmann-Wachmann 1?, a page that provides all the information needed to find Comet 29P/Schwassmann-Wachmann 1 in the sky and additional links to sky charts.

Comet 29P/Schwassmann-Wachmann 1 Distance from Earth

The distance of Comet 29P/Schwassmann-Wachmann 1 from Earth is currently 842,061,857 kilometers, equivalent to 5.628836 Astronomical Units. Light takes 46 minutes and 48.8160 seconds to travel from Comet 29P/Schwassmann-Wachmann 1 and arrive to us.

46 minutes and 48.8160 seconds

The following chart shows the distance of Comet 29P/Schwassmann-Wachmann 1 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 29P/Schwassmann-Wachmann 1 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 29P/Schwassmann-Wachmann 1 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 29P/Schwassmann-Wachmann 1 to Earth

Between January 2013 and December 2100, the closest approach of Comet 29P/Schwassmann-Wachmann 1 to Earth happens on Fri Oct 13 2034 at a distance of 4.725860 Astronomical Units, or 706,978,587 kilometers:

Fri Oct 13 2034

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

Comet 29P/Schwassmann-Wachmann 1 brightness

The current visual magnitude of Comet 29P/Schwassmann-Wachmann 1 is 15.81.


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 29P/Schwassmann-Wachmann 1, 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 29P/Schwassmann-Wachmann 1 between January 2013 and December 2100

Comet 29P/Schwassmann-Wachmann 1 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 29P/Schwassmann-Wachmann 1 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 66.1°
Max altitude: 62.5°
Azimuth: 293.9°

The rise and set times are defined as the time at which the upper limb of Comet 29P/Schwassmann-Wachmann 1 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 29P/Schwassmann-Wachmann 1 Orbital Elements

The following table lists the orbital elements of Comet 29P/Schwassmann-Wachmann 1 at epoch 06 July 2011 00:00 UTC (JD: 2455749.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.04457993
Orbit inclination i 9.38392271°
Perihelion distance q 5.72730507 AU
856,792,645 km
Aphelion distance Q 6.26177749 AU
936,748,581 km
Semi-major axis a 5.99454128 AU
896,770,613 km
Orbital period period 14.6800 years
5,360.8340 days
Date of perihelion transit Tp 2004-Jul-25 08:52:32
2,453,211.8698 JD
Next perihelion transit 2019-Mar-30 04:53
2,458,572.7038 JD
Argument of perihelion peri 50.022017275467°
Longitude of the ascending node node 312.60626335192°
Mean anomaly M 170.41133191042°
Mean motion n 0.06715373°/day

Visualization of Comet 29P/Schwassmann-Wachmann 1 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 29P/Schwassmann-Wachmann 1 with respect of the Sun and the orbits of the major planets. The position of Comet 29P/Schwassmann-Wachmann 1 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 29P/Schwassmann-Wachmann 1
View Comet 29P/Schwassmann-Wachmann 1 in the 3D Solar System Simulator

Comet 29P/Schwassmann-Wachmann 1 15 Days Ephemeris

The following table lists the ephemerides of Comet 29P/Schwassmann-Wachmann 1 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 29P/Schwassmann-Wachmann 1 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Jan 14 02h 15m 23s +24° 03’ 33” 15.76 Aries
2021 Jan 15 02h 15m 30s +24° 02’ 23” 15.76 Aries
2021 Jan 16 02h 15m 41s +24° 01’ 18” 15.77 Aries
2021 Jan 17 02h 15m 51s +24° 00’ 16” 15.78 Aries
2021 Jan 18 02h 16m 01s +23° 59’ 18” 15.78 Aries
2021 Jan 19 02h 16m 14s +23° 58’ 23” 15.79 Aries
2021 Jan 20 02h 16m 27s +23° 57’ 33” 15.79 Aries
2021 Jan 21 02h 16m 40s +23° 56’ 45” 15.80 Aries
2021 Jan 22 02h 16m 54s +23° 56’ 03” 15.81 Aries
2021 Jan 23 02h 17m 08s +23° 55’ 23” 15.81 Aries
2021 Jan 24 02h 17m 22s +23° 54’ 46” 15.82 Aries
2021 Jan 25 02h 17m 39s +23° 54’ 12” 15.83 Aries
2021 Jan 26 02h 17m 56s +23° 53’ 44” 15.83 Aries
2021 Jan 27 02h 18m 12s +23° 53’ 17” 15.84 Aries