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🌎 Location: Greenwich, United Kingdom [change]

Comet C/2013 YG46 (Spacewatch)

Comet C/2013 YG46 (Spacewatch) is currently in the constellation of Leo. The current Right Ascension of Comet C/2013 YG46 (Spacewatch) is 09h 55m 53s and the Declination is +20° 31’ 53” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2013 YG46 (Spacewatch) is 20.53 (JPL).

Summary of key facts about Comet C/2013 YG46 (Spacewatch) [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]:

09h 55m 53s
+20° 31’ 53”
  • C/2013 YG46 (Spacewatch) is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-East direction at an altitude of 55° above the horizon.
  • Given its current magnitude, C/2013 YG46 (Spacewatch) is visible only through long exposure photography.
  • See also C/2013 YG46 (Spacewatch) 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 C/2013 YG46 (Spacewatch) available on TheSkyLive:

Available Resources

Comet C/2013 YG46 (Spacewatch) Position and Finder Charts

Below we provide Comet C/2013 YG46 (Spacewatch) 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 C/2013 YG46 (Spacewatch) in Leo on October, 29 2020
Field of view: 50x30 degrees
View fullscreen
Map showing Comet C/2013 YG46 (Spacewatch) in Leo on October, 29 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 Comet C/2013 YG46 (Spacewatch) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2013 YG46 (Spacewatch)
RA: 09h 55m 53s
Dec: +20° 31’ 53”
Deep sky finder chart for Comet C/2013 YG46 (Spacewatch)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2013 YG46 (Spacewatch)?, a page that provides all the information needed to find Comet C/2013 YG46 (Spacewatch) in the sky and additional links to sky charts.

Comet C/2013 YG46 (Spacewatch) Distance from Earth

The distance of Comet C/2013 YG46 (Spacewatch) from Earth is currently 707,759,956 kilometers, equivalent to 4.731083 Astronomical Units. Light takes 39 minutes and 20.8331 seconds to travel from Comet C/2013 YG46 (Spacewatch) and arrive to us.

39 minutes and 20.8331 seconds

The following chart shows the distance of Comet C/2013 YG46 (Spacewatch) 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 C/2013 YG46 (Spacewatch) 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 C/2013 YG46 (Spacewatch) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2013 YG46 (Spacewatch) to Earth

Between January 2013 and December 2100, the closest approach of Comet C/2013 YG46 (Spacewatch) to Earth happens on Mon Jul 23 2040 at a distance of 0.596770 Astronomical Units, or 89,275,537 kilometers:

Mon Jul 23 2040

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

Comet C/2013 YG46 (Spacewatch) brightness

The current visual magnitude of Comet C/2013 YG46 (Spacewatch) is 20.53.


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 C/2013 YG46 (Spacewatch), 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 C/2013 YG46 (Spacewatch) between January 2013 and December 2100

Comet C/2013 YG46 (Spacewatch) 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 C/2013 YG46 (Spacewatch) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 69.5°
Max altitude: 59.1°
Azimuth: 290.5°

The rise and set times are defined as the time at which the upper limb of Comet C/2013 YG46 (Spacewatch) 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 C/2013 YG46 (Spacewatch) Orbital Elements

The following table lists the orbital elements of Comet C/2013 YG46 (Spacewatch) at epoch 22 March 2014 00:00 UTC (JD: 2456739.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.45405612
Orbit inclination i 8.10810695°
Perihelion distance q 1.80442232 AU
269,937,738 km
Aphelion distance Q 4.80586264 AU
718,946,819 km
Semi-major axis a 3.30514248 AU
494,442,278 km
Orbital period period 6.0100 years
2,194.7432 days
Date of perihelion transit Tp 2017-Jan-20 07:30:32
2,457,773.8129 JD
Next perihelion transit 2023-Jan-24 01:20
2,459,968.5560 JD
Argument of perihelion peri 234.19374331526°
Longitude of the ascending node node 55.696456987327°
Mean anomaly M 190.34341259922°
Mean motion n 0.16402830°/day

Visualization of Comet C/2013 YG46 (Spacewatch) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2013 YG46 (Spacewatch) with respect of the Sun and the orbits of the major planets. The position of Comet C/2013 YG46 (Spacewatch) 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 C/2013 YG46 (Spacewatch)
View Comet C/2013 YG46 (Spacewatch) in the 3D Solar System Simulator

Comet C/2013 YG46 (Spacewatch) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2013 YG46 (Spacewatch) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2013 YG46 (Spacewatch) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Oct 22 09h 51m 21s +20° 43’ 57” 20.60 Leo
2020 Oct 23 09h 52m 00s +20° 42’ 06” 20.59 Leo
2020 Oct 24 09h 52m 40s +20° 40’ 19” 20.58 Leo
2020 Oct 25 09h 53m 17s +20° 38’ 35” 20.57 Leo
2020 Oct 26 09h 53m 54s +20° 36’ 56” 20.56 Leo
2020 Oct 27 09h 54m 32s +20° 35’ 18” 20.55 Leo
2020 Oct 28 09h 55m 09s +20° 33’ 46” 20.54 Leo
2020 Oct 29 09h 55m 45s +20° 32’ 16” 20.53 Leo
2020 Oct 30 09h 56m 21s +20° 30’ 50” 20.53 Leo
2020 Oct 31 09h 56m 54s +20° 29’ 26” 20.52 Leo
2020 Nov 01 09h 57m 29s +20° 28’ 09” 20.51 Leo
2020 Nov 02 09h 58m 02s +20° 26’ 53” 20.50 Leo
2020 Nov 03 09h 58m 36s +20° 25’ 42” 20.49 Leo
2020 Nov 04 09h 59m 08s +20° 24’ 34” 20.48 Leo