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Comet C/2013 A1 (Siding Spring)

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Comet C/2013 A1 (Siding Spring) Position

Comet C/2013 A1 (Siding Spring) is currently in the constellation of Leo Minor. The current Right Ascension is 10h 28m 34s and the Declination is +35° 15’ 46”.

10h 28m 34s
+35° 15’ 46”

Simplified sky chart showing where Comet C/2013 A1 (Siding Spring) is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet C/2013 A1 (Siding Spring) in Leo Minor on September, 15 2019
Field of view: 60x30 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]

Hihgher precision deep sky finder chart showing where Comet C/2013 A1 (Siding Spring) is right now (view fullscreen)

C/2013 A1 (Siding Spring)
RA: 10h 28m 34s
Dec: +35° 15’ 46”
Deep sky finder chart for Comet C/2013 A1 (Siding Spring)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2013 A1 (Siding Spring)?, a page that provides all the information needed to find Comet C/2013 A1 (Siding Spring) in the sky and additional links to sky charts.

Comet C/2013 A1 (Siding Spring) Distance

The distance of Comet C/2013 A1 (Siding Spring) from Earth is currently 2,352,972,553 kilometers, equivalent to 15.728650 Astronomical Units. Light takes 2 hours, 10 minutes and 48.6716 seconds to travel from Comet C/2013 A1 (Siding Spring) and arrive to us.

2,352,972,553
15.728650
2 hours, 10 minutes and 48.6716 seconds

The following chart shows the distance of Comet C/2013 A1 (Siding Spring) 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 A1 (Siding Spring) 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 A1 (Siding Spring) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2013 A1 (Siding Spring) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2013 A1 (Siding Spring) to Earth happens on Fri Sep 5 2014 at a distance of 0.89102368 Astronomical Units, or 133,295,246 kilometers:

Fri Sep 5 2014
133,295,246
0.891024

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

Comet C/2013 A1 (Siding Spring) brightness

The current visual magnitude of Comet C/2013 A1 (Siding Spring) is 25.05.

25.05
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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 behvior 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 A1 (Siding Spring), 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 A1 (Siding Spring) between January 2013 and December 2100

Comet C/2013 A1 (Siding Spring) 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 A1 (Siding Spring) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 54.7°
Max altitude: 73.8°
Azimuth: 305.3°
Comet C/2013 A1 (Siding Spring) is above the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet C/2013 A1 (Siding Spring) touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet C/2013 A1 (Siding Spring) Orbital Elements

The following table lists the orbital elements of Comet C/2013 A1 (Siding Spring) at epoch 01 April 2016 00:00 UTC (JD: 2457480.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00008553
Orbit inclination i 129.03291761°
Perihelion distance q 1.39976499 AU
209,401,862 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2014-Oct-25 04:13:10
2,456,955.6758 JD
Argument of perihelion peri 2.4491694821387°
Longitude of the ascending node node 300.99940992437°
Mean anomaly M 0.00024704994536109°
Mean motion n 0.00000047°/day

Visualization of Comet C/2013 A1 (Siding Spring) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2013 A1 (Siding Spring) with respect of the Sun and the orbits of the major planets. The position of Comet C/2013 A1 (Siding Spring) 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 A1 (Siding Spring)
View Comet C/2013 A1 (Siding Spring) in the 3D Solar System Simulator

Comet C/2013 A1 (Siding Spring) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2013 A1 (Siding Spring) 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 A1 (Siding Spring) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Sep 08 10h 26m 45s +35° 22’ 36” 25.04 Leo Minor
2019 Sep 09 10h 27m 01s +35° 21’ 37” 25.04 Leo Minor
2019 Sep 10 10h 27m 15s +35° 20’ 39” 25.04 Leo Minor
2019 Sep 11 10h 27m 29s +35° 19’ 41” 25.04 Leo Minor
2019 Sep 12 10h 27m 43s +35° 18’ 47” 25.04 Leo Minor
2019 Sep 13 10h 27m 59s +35° 17’ 53” 25.04 Leo Minor
2019 Sep 14 10h 28m 13s +35° 17’ 03” 25.04 Leo Minor
2019 Sep 15 10h 28m 27s +35° 16’ 14” 25.05 Leo Minor
2019 Sep 16 10h 28m 41s +35° 15’ 25” 25.05 Leo Minor
2019 Sep 17 10h 28m 55s +35° 14’ 39” 25.05 Leo Minor
2019 Sep 18 10h 29m 09s +35° 13’ 57” 25.05 Leo Minor
2019 Sep 19 10h 29m 24s +35° 13’ 14” 25.05 Leo Minor
2019 Sep 20 10h 29m 36s +35° 12’ 33” 25.05 Leo Minor
2019 Sep 21 10h 29m 51s +35° 11’ 56” 25.05 Leo Minor