Comet C/2018 R3 (Lemmon)

Available Resources

• Position (see also Where is Comet C/2018 R3 (Lemmon)?)
• Distance (see also How far is Comet C/2018 R3 (Lemmon) from Earth?)
• Rise and set times (see also When does Comet C/2018 R3 (Lemmon) rise and set?)
• Brightness (see also How bright is Comet C/2018 R3 (Lemmon)?)
• Orbital elements. Detailed information about Comet C/2018 R3 (Lemmon) orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Comet C/2018 R3 (Lemmon) with respect to the major Solar System objects.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Comet C/2018 R3 (Lemmon) for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Comet C/2018 R3 (Lemmon) in the sky from your location.
• Live position tracker. A hight precision sky chart that uses real deep sky imagery to help locate Comet C/2018 R3 (Lemmon) with your telescope or on your astrophotographies.

Closest approach of Comet C/2018 R3 (Lemmon) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2018 R3 (Lemmon) to Earth happens on Thu May 23 2019 at a distance of 1.92175259 Astronomical Units, or 287,490,097 kilometers:

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

Comet C/2018 R3 (Lemmon) brightness

The current visual magnitude of Comet C/2018 R3 (Lemmon) is 15.45.

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/2018 R3 (Lemmon), 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.

Comet C/2018 R3 (Lemmon) rise and set times

Comet C/2018 R3 (Lemmon) is circumpolar and transits at 13:13 UTC (altitude: 88.3°)

The rise and set times are defined as the time at which the upper limb of Comet C/2018 R3 (Lemmon) 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.

Visualization of Comet C/2018 R3 (Lemmon) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2018 R3 (Lemmon) with respect of the Sun and the orbits of the major planets. The position of Comet C/2018 R3 (Lemmon) 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 C/2018 R3 (Lemmon) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2018 R3 (Lemmon) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2018 R3 (Lemmon) in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2019 Jun 10	06h 04m 05s	+57° 00’ 24”	15.37	Camelopardalis
2019 Jun 11	06h 11m 13s	+56° 35’ 08”	15.38	Camelopardalis
2019 Jun 12	06h 18m 11s	+56° 08’ 42”	15.39	Lynx
2019 Jun 13	06h 24m 55s	+55° 41’ 08”	15.39	Lynx
2019 Jun 14	06h 31m 27s	+55° 12’ 33”	15.41	Lynx
2019 Jun 15	06h 37m 49s	+54° 43’ 03”	15.42	Lynx
2019 Jun 16	06h 43m 59s	+54° 12’ 39”	15.43	Lynx
2019 Jun 17	06h 49m 56s	+53° 41’ 30”	15.44	Lynx
2019 Jun 18	06h 55m 44s	+53° 09’ 37”	15.45	Lynx
2019 Jun 19	07h 01m 19s	+52° 37’ 05”	15.47	Lynx
2019 Jun 20	07h 06m 46s	+52° 03’ 59”	15.48	Lynx
2019 Jun 21	07h 12m 02s	+51° 30’ 20”	15.50	Lynx
2019 Jun 22	07h 17m 07s	+50° 56’ 16”	15.52	Lynx
2019 Jun 23	07h 22m 04s	+50° 21’ 47”	15.53	Lynx