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Comet 110P/Hartley 3

Available Resources

Comet 110P/Hartley 3 Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 110P/Hartley 3 is now with respect to the brightest stars and constellations.

More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.

Comet 110P/Hartley 3 in Sagittarius on April, 21 2018
High Precision Live Sky Chart
19h 05m 35s
-25° 50’ 17”
24.08
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet 110P/Hartley 3 Rise and Set Times

Today's Comet 110P/Hartley 3 rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 115.8°
Max altitude: 12.7°
Azimuth: 244.2°

Comet 110P/Hartley 3 Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 110P/Hartley 3 with respect of the Sun and the orbits of the major planets. The position of Comet 110P/Hartley 3 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 110P/Hartley 3
View Comet 110P/Hartley 3 in the 3D Solar System Simulator

Comet 110P/Hartley 3 Ephemeris

The following table lists the ephemerides of Comet 110P/Hartley 3 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 110P/Hartley 3 in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2018 Apr 14 24.13 19h 04m 31s -25° 54’ 07” Sagittarius
2018 Apr 15 24.12 19h 04m 42s -25° 53’ 31” Sagittarius
2018 Apr 16 24.11 19h 04m 54s -25° 52’ 57” Sagittarius
2018 Apr 17 24.10 19h 05m 03s -25° 52’ 23” Sagittarius
2018 Apr 18 24.10 19h 05m 13s -25° 51’ 50” Sagittarius
2018 Apr 19 24.09 19h 05m 21s -25° 51’ 18” Sagittarius
2018 Apr 20 24.08 19h 05m 30s -25° 50’ 47” Sagittarius
2018 Apr 21 24.08 19h 05m 35s -25° 50’ 17” Sagittarius
2018 Apr 22 24.07 19h 05m 41s -25° 49’ 47” Sagittarius
2018 Apr 23 24.06 19h 05m 47s -25° 49’ 19” Sagittarius
2018 Apr 24 24.05 19h 05m 49s -25° 48’ 52” Sagittarius
2018 Apr 25 24.05 19h 05m 53s -25° 48’ 27” Sagittarius
2018 Apr 26 24.04 19h 05m 54s -25° 48’ 02” Sagittarius
2018 Apr 27 24.03 19h 05m 56s -25° 47’ 38” Sagittarius

Distance of Comet 110P/Hartley 3 from Earth

The following chart shows the distance of Comet 110P/Hartley 3 from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.

The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 110P/Hartley 3 is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 110P/Hartley 3 from Earth between January 2013 and December 2075

Light Curve of Comet 110P/Hartley 3

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 110P/Hartley 3, 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 110P/Hartley 3 between January 2013 and December 2075

Comet 110P/Hartley 3 Orbital Elements

The following table lists the orbital elements of Comet 110P/Hartley 3 at epoch 07 September 2011 00:00 UTC (JD: 2455812.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.31348058
Orbit inclination i 11.68733184°
Perihelion distance q 2.48099115 AU
371,150,995 km
Aphelion distance Q 4.74674656 AU
710,103,179 km
Semi-major axis a 3.61386885 AU
540,627,087 km
Orbital period period 6.8700 years
2,509.3256 days
Date of perihelion transit Tp 2014-Dec-18 00:28:07
2,457,009.5195 JD
Next perihelion transit 2021-Oct-31 08:16
2,459,518.8451 JD
Argument of perihelion peri 167.59582598398°
Longitude of the ascending node node 287.70603608175°
Mean anomaly M 188.26977894764°
Mean motion n 0.14346484°/day
Closest approach to Earth* 2014-Dec-31
Distance of closest approach* 1.49411902 AU
223,517,024 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.