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Comet 325P/Yang-Gao

Comet 325P/Yang-Gao is currently in the constellation of Gemini. The current Right Ascension of Comet 325P/Yang-Gao is 06h 59m 11s and the Declination is +12° 32’ 16” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 325P/Yang-Gao is 24.64 (JPL).

Summary of key facts about Comet 325P/Yang-Gao [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]:

06h 59m 11s
+12° 32’ 16”

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Additional information about Comet 325P/Yang-Gao available on TheSkyLive:

Available Resources

Comet 325P/Yang-Gao Position and Finder Charts

Below we provide Comet 325P/Yang-Gao 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 325P/Yang-Gao in Gemini on May, 07 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 325P/Yang-Gao in Gemini 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 325P/Yang-Gao is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 06h 59m 11s
Dec: +12° 32’ 16”
Deep sky finder chart for Comet 325P/Yang-Gao
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 325P/Yang-Gao?, a page that provides all the information needed to find Comet 325P/Yang-Gao in the sky and additional links to sky charts.

Comet 325P/Yang-Gao Distance from Earth

The distance of Comet 325P/Yang-Gao from Earth is currently 547,320,499 kilometers, equivalent to 3.658612 Astronomical Units. Light takes 30 minutes and 25.6647 seconds to travel from Comet 325P/Yang-Gao and arrive to us.

30 minutes and 25.6647 seconds

The following chart shows the distance of Comet 325P/Yang-Gao 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 325P/Yang-Gao 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 325P/Yang-Gao from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 325P/Yang-Gao to Earth

Between January 2013 and December 2100, the closest approach of Comet 325P/Yang-Gao to Earth happens on Tue Jun 3 2042 at a distance of 0.506255 Astronomical Units, or 75,734,629 kilometers:

Tue Jun 3 2042

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

Comet 325P/Yang-Gao brightness

The current visual magnitude of Comet 325P/Yang-Gao is 24.64.


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 325P/Yang-Gao, 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 325P/Yang-Gao between January 2013 and December 2100

Comet 325P/Yang-Gao 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 325P/Yang-Gao rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 77.5°
Max altitude: 51.1°
Azimuth: 282.5°

The rise and set times are defined as the time at which the upper limb of Comet 325P/Yang-Gao 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 325P/Yang-Gao Orbital Elements

The following table lists the orbital elements of Comet 325P/Yang-Gao at epoch 07 August 2009 00:00 UTC (JD: 2455051.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.62096342
Orbit inclination i 16.15831730°
Perihelion distance q 1.29612655 AU
193,897,772 km
Aphelion distance Q 5.54293134 AU
829,210,727 km
Semi-major axis a 3.41952894 AU
511,554,250 km
Orbital period period 6.3200 years
2,309.6589 days
Date of perihelion transit Tp 2009-May-21 18:08:18
2,454,973.2558 JD
Next perihelion transit 2015-Sep-17 09:57
2,457,282.9147 JD
Argument of perihelion peri 346.95557885318°
Longitude of the ascending node node 259.30391475029°
Mean anomaly M 12.195706084429°
Mean motion n 0.15586717°/day

Visualization of Comet 325P/Yang-Gao Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 325P/Yang-Gao with respect of the Sun and the orbits of the major planets. The position of Comet 325P/Yang-Gao 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 325P/Yang-Gao
View Comet 325P/Yang-Gao in the 3D Solar System Simulator

Comet 325P/Yang-Gao 15 Days Ephemeris

The following table lists the ephemerides of Comet 325P/Yang-Gao computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 325P/Yang-Gao in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Apr 30 06h 51m 57s +12° 37’ 06” 24.68 Gemini
2021 May 01 06h 52m 50s +12° 36’ 42” 24.68 Gemini
2021 May 02 06h 53m 43s +12° 36’ 14” 24.67 Gemini
2021 May 03 06h 54m 36s +12° 35’ 42” 24.67 Gemini
2021 May 04 06h 55m 29s +12° 35’ 08” 24.66 Gemini
2021 May 05 06h 56m 25s +12° 34’ 29” 24.66 Gemini
2021 May 06 06h 57m 20s +12° 33’ 47” 24.65 Gemini
2021 May 07 06h 58m 17s +12° 33’ 03” 24.65 Gemini
2021 May 08 06h 59m 13s +12° 32’ 16” 24.64 Gemini
2021 May 09 07h 00m 11s +12° 31’ 23” 24.63 Gemini
2021 May 10 07h 01m 09s +12° 30’ 29” 24.63 Gemini
2021 May 11 07h 02m 09s +12° 29’ 30” 24.62 Gemini
2021 May 12 07h 03m 09s +12° 28’ 27” 24.62 Gemini
2021 May 13 07h 04m 09s +12° 27’ 21” 24.61 Gemini