Comet C/2019 J1 (Lemmon)
Comet C/2019 J1 (Lemmon) Position
Comet C/2019 J1 (Lemmon) is currently in the constellation of Cetus. The current Right Ascension is 00h 05m 41s and the Declination is -20° 25’ 30”.
Simplified sky chart showing where Comet C/2019 J1 (Lemmon) is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)
Field of view: 60x30 degrees
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Higher precision deep sky finder chart showing where Comet C/2019 J1 (Lemmon) is right now (view fullscreen)
Also check out Where is Comet C/2019 J1 (Lemmon)?, a page that provides all the information needed to find Comet C/2019 J1 (Lemmon) in the sky and additional links to sky charts.
Comet C/2019 J1 (Lemmon) Distance
The distance of Comet C/2019 J1 (Lemmon) from Earth is currently 783,277,627 kilometers, equivalent to 5.235888 Astronomical Units. Light takes 43 minutes and 32.7329 seconds to travel from Comet C/2019 J1 (Lemmon) and arrive to us.
The following chart shows the distance of Comet C/2019 J1 (Lemmon) 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 C/2019 J1 (Lemmon) from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest approach of Comet C/2019 J1 (Lemmon) to Earth
Between January 2013 and December 2100 the closest approach of Comet C/2019 J1 (Lemmon) to Earth happens on Wed Jul 3 2019 at a distance of 1.67216035 Astronomical Units, or 250,151,629 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Comet C/2019 J1 (Lemmon) brightness
The current visual magnitude of Comet C/2019 J1 (Lemmon) is 23.58.
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 behavior 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/2019 J1 (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/2019 J1 (Lemmon) 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/2019 J1 (Lemmon) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):
The rise and set times are defined as the time at which the upper limb of Comet C/2019 J1 (Lemmon) touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.
Comet C/2019 J1 (Lemmon) Orbital Elements
The following table lists the orbital elements of Comet C/2019 J1 (Lemmon) at epoch 12 June 2019 00:00 UTC (JD: 2458647.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.96535804 |
| Orbit inclination | i | 24.54961655° |
| Perihelion distance | q | 2.47866300 AU 370,802,708 km |
| Aphelion distance | Q |
140.62310168 AU 21,036,916,624 km |
| Semi-major axis | a |
71.55088234 AU 10,703,859,666 km |
| Orbital period | period |
605.2400 years 221,065.4728 days |
| Date of perihelion transit | Tp | 2019-Apr-09 08:14:51 2,458,582.8436 JD |
| Next perihelion transit | 2624-Jul-11 19:35 2,679,648.3164 JD |
|
| Argument of perihelion | peri | 167.7956012751° |
| Longitude of the ascending node | node | 98.087004048968° |
| Mean anomaly | M | 0.10529136910206° |
| Mean motion | n | 0.00162848°/day |
Visualization of Comet C/2019 J1 (Lemmon) Orbit
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2019 J1 (Lemmon) with respect of the Sun and the orbits of the major planets. The position of Comet C/2019 J1 (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!
View Comet C/2019 J1 (Lemmon) in the 3D Solar System Simulator
Comet C/2019 J1 (Lemmon) 15 Days Ephemeris
The following table lists the ephemerides of Comet C/2019 J1 (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/2019 J1 (Lemmon) in our Online Planetarium at the chosen date.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2020 Mar 28 | 23h 57m 42s | -20° 59’ 49” | 23.50 | Cetus |
| 2020 Mar 29 | 23h 58m 50s | -20° 54’ 52” | 23.51 | Cetus |
| 2020 Mar 30 | 23h 59m 57s | -20° 49’ 59” | 23.52 | Cetus |
| 2020 Mar 31 | 00h 01m 03s | -20° 45’ 11” | 23.53 | Cetus |
| 2020 Apr 01 | 00h 02m 09s | -20° 40’ 24” | 23.55 | Cetus |
| 2020 Apr 02 | 00h 03m 15s | -20° 35’ 43” | 23.56 | Cetus |
| 2020 Apr 03 | 00h 04m 20s | -20° 31’ 05” | 23.57 | Cetus |
| 2020 Apr 04 | 00h 05m 26s | -20° 26’ 30” | 23.58 | Cetus |
| 2020 Apr 05 | 00h 06m 32s | -20° 21’ 59” | 23.59 | Cetus |
| 2020 Apr 06 | 00h 07m 36s | -20° 17’ 31” | 23.60 | Cetus |
| 2020 Apr 07 | 00h 08m 40s | -20° 13’ 08” | 23.61 | Cetus |
| 2020 Apr 08 | 00h 09m 46s | -20° 08’ 48” | 23.63 | Cetus |
| 2020 Apr 09 | 00h 10m 49s | -20° 04’ 32” | 23.64 | Cetus |
| 2020 Apr 10 | 00h 11m 53s | -20° 00’ 20” | 23.65 | Cetus |