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public  Triandaíika, Greece Triandaíika, Greece  ⓘ
TimezoneEurope/Athens
Sunrise: 6:21 
Transit: 13:40 
Sunset: 20:58
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Comets » 

Comet 325P/Yang-Gao

Above the horizon.  Rise: 3:10 | Tran: 10:38 | Set: 18:07
Alt: 39.77°   Az: 86.68°   Direction: East

Comet 325P/Yang-Gao is in the constellation of Taurus, at a distance of 950,868,391.0 kilometers from Earth. The current Right Ascension is 04h 26m 00s and the Declination is +25° 44’ 44” (apparent coordinates). The estimated magnitude of comet 325P/Yang-Gao, computed using JPL Horizons's data, is 30.30.

Finder Charts

The sky charts below show, at different resolutions, the position of comet 325P/Yang-Gao in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of comet 325P/Yang-Gao in the constellation of Taurus on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of comet 325P/Yang-Gao in the constellation of Taurus on F, d Y. Field of view: 15x9 degrees. View in interactive star map.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of comet 325P/Yang-Gao against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.

325P/Yang-Gao
RA: 04h 24m 26s
Dec: +25° 41’ 18”
Simplified high-resolution deep sky chart showing the current position of comet 325P/Yang-Gao. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

04h 26m 00s
+25° 44’ 44”
20h 06m 20s
00h 32m 20s

J2000

04h 24m 26s
+25° 41’ 18”

Additional Information

Taurus
n/a
n/a
n/a
n/a
30.30

The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.

Rise and Set Times

The following table lists today's rise, transit and set times of comet 325P/Yang-Gao from Triandaíika, Greece (all times relative to the local timezone Europe/Athens):

Azimuth: 64.3°
Max altitude: 77.1°
Azimuth: 295.8°

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.

Distance from Earth

The distance of comet 325P/Yang-Gao from Earth is currently 950,868,391.0 kilometers, equivalent to 6.3561626015 Astronomical Units. Light takes 52m 51.756s to travel from comet 325P/Yang-Gao and arrive to us.

950,868,391.0
6.3561626015
52m 51.756s

The following graph shows the distance of comet 325P/Yang-Gao from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.

Chart of the distance of comet 325P/Yang-Gao from Earth in Astronomical Units (au)
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).

The value of the distance of 325P/Yang-Gao from Earth is also available as a real time updated value in the live position tracker.

Closest Approach to Earth

In the period between January 1, 2000 and December 31, 2099, the closest approach of comet 325P/Yang-Gao to Earth happened on Wednesday 3 June 2009 at a distance of 0.302897 Astronomical Units, or 45,312,800 kilometers:

Wednesday 3 June 2009
45,312,800
0.302897

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

Light Curve

The following chart shows the light curve of comet 325P/Yang-Gao, i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.

Chart of the magnitude of comet 325P/Yang-Gao as a function of time

Orbital Elements

The following table lists the orbital elements of comet 325P/Yang-Gao at epoch February, 20 2012 00:00 UTC (JD: 2455978.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.62430563
Orbit inclination i 16.33206574°
Perihelion distance q 1.27948415 AU
191,408,104 km
Aphelion distance Q 5.53181910 AU
827,548,361 km
Semi-major axis a 3.40565163 AU
509,478,232 km
Orbital period period 6.2850 years
2,295.6134 days
Date of perihelion transit Tp May 22, 2009
2,454,973.9439 JD
Next perihelion transit September 4, 2015
2,457,269.5573 JD
Argument of perihelion peri 346.99924909728°
Longitude of the ascending node node 258.85419935605°
Mean anomaly M 157.53532668597°
Mean motion n 0.15682083°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of comet 325P/Yang-Gao relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.

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. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
Jul 05 2025 04h 21m 00s +25° 35’ 55” 30.33 Taurus
Jul 06 2025 04h 21m 43s +25° 37’ 11” 30.32 Taurus
Jul 07 2025 04h 22m 25s +25° 38’ 28” 30.32 Taurus
Jul 08 2025 04h 23m 07s +25° 39’ 42” 30.32 Taurus
Jul 09 2025 04h 23m 49s +25° 40’ 56” 30.31 Taurus
Jul 10 2025 04h 24m 31s +25° 42’ 10” 30.31 Taurus
Jul 11 2025 04h 25m 12s +25° 43’ 21” 30.31 Taurus
Jul 12 2025 04h 25m 53s +25° 44’ 33” 30.30 Taurus
Jul 13 2025 04h 26m 34s +25° 45’ 42” 30.30 Taurus
Jul 14 2025 04h 27m 14s +25° 46’ 52” 30.30 Taurus
Jul 15 2025 04h 27m 54s +25° 48’ 01” 30.29 Taurus
Jul 16 2025 04h 28m 34s +25° 49’ 07” 30.29 Taurus
Jul 17 2025 04h 29m 13s +25° 50’ 14” 30.28 Taurus
Jul 18 2025 04h 29m 52s +25° 51’ 20” 30.28 Taurus

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