Comet 161P/Hartley-IRAS

Comet 161P/Hartley-IRAS is currently in the constellation of Carina.

The current Right Ascension of Comet 161P/Hartley-IRAS is 07h 39m 01s and the Declination is -52° 48’ 00” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of Comet 161P/Hartley-IRAS is 27.56 (JPL).

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.

Today's rise, transit and set times of Comet 161P/Hartley-IRAS from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

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Available Resources

• Position and finder charts (see also Where is Comet 161P/Hartley-IRAS?)
• Distance from Earth (see also How far is Comet 161P/Hartley-IRAS from Earth?)
• When does Comet 161P/Hartley-IRAS rise and set?
• Brightness (see also How bright is Comet 161P/Hartley-IRAS?)
• Orbital elements. Detailed information about Comet 161P/Hartley-IRAS orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Comet 161P/Hartley-IRAS with respect to the major Solar System objects.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Comet 161P/Hartley-IRAS for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Comet 161P/Hartley-IRAS in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Comet 161P/Hartley-IRAS with your telescope or on your astrophotographies.

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet 161P/Hartley-IRAS is right now. Click on the image to see a more detailed fullscreen tracker view.

Also check out Where is Comet 161P/Hartley-IRAS?, a page that provides all the information needed to find Comet 161P/Hartley-IRAS in the sky and additional links to sky charts.

Comet 161P/Hartley-IRAS Distance from Earth

The distance of Comet 161P/Hartley-IRAS from Earth is currently 1,407,641,540 kilometers, equivalent to 9.409503 Astronomical Units. Light takes 1 hours, 18 minutes and 15.3868 seconds to travel from Comet 161P/Hartley-IRAS and arrive to us.

The following chart shows the distance of Comet 161P/Hartley-IRAS 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.

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 161P/Hartley-IRAS from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet 161P/Hartley-IRAS to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Comet 161P/Hartley-IRAS to Earth happens on Fri Oct 2 2026 at a distance of 0.505482 Astronomical Units, or 75,618,969 kilometers:

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

Comet 161P/Hartley-IRAS Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 161P/Hartley-IRAS, 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.

Visualization of Comet 161P/Hartley-IRAS Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 161P/Hartley-IRAS with respect of the Sun and the orbits of the major planets. The position of Comet 161P/Hartley-IRAS 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!

Comet 161P/Hartley-IRAS 15 Days Ephemeris

The following table lists the ephemerides of Comet 161P/Hartley-IRAS computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 161P/Hartley-IRAS in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2023 May 21	07h 36m 47s	-53° 18’ 03”	27.57	Carina
2023 May 22	07h 37m 05s	-53° 13’ 38”	27.57	Carina
2023 May 23	07h 37m 22s	-53° 09’ 19”	27.57	Carina
2023 May 24	07h 37m 41s	-53° 05’ 03”	27.56	Carina
2023 May 25	07h 37m 59s	-53° 00’ 51”	27.56	Carina
2023 May 26	07h 38m 18s	-52° 56’ 43”	27.56	Carina
2023 May 27	07h 38m 38s	-52° 52’ 38”	27.56	Carina
2023 May 28	07h 38m 57s	-52° 48’ 38”	27.56	Carina
2023 May 29	07h 39m 19s	-52° 44’ 43”	27.55	Carina
2023 May 30	07h 39m 39s	-52° 40’ 51”	27.55	Carina
2023 May 31	07h 40m 00s	-52° 37’ 05”	27.55	Carina
2023 Jun 01	07h 40m 23s	-52° 33’ 21”	27.55	Carina
2023 Jun 02	07h 40m 45s	-52° 29’ 44”	27.55	Carina
2023 Jun 03	07h 41m 08s	-52° 26’ 09”	27.54	Carina