Comet Leonard (C/2021 A1)
Comet Leonard (C/2021 A1) is currently in the constellation of Ophiucus.
The current Right Ascension of Comet Leonard (C/2021 A1) is 16h 38m 47s and the Declination is -14° 04’ 35” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom ). The current estimated magnitude of Comet Leonard (C/2021 A1) is 19.84 (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 Leonard (C/2021 A1) from Greenwich, United Kingdom (all times relative to the local timezone Europe/London):
- C/2021 A1 (Leonard) is above the horizon from Greenwich, United Kingdom .
- Right now it is placed in the South-South-East direction at an altitude of 20° above the horizon.
- Given its current magnitude, C/2021 A1 (Leonard) is visible only through long exposure photography.
- Go to interactive sky chart
If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.
Comet Leonard (C/2021 A1) Position and Finder Charts
Below we provide Comet Leonard (C/2021 A1) finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.
Field of view: 50x30 degrees
Field of view: 10x6 degrees
Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet Leonard (C/2021 A1) is right now. Click on the image to see a more detailed fullscreen tracker view.
RA: 16h 38m 47s
Dec: -14° 04’ 35”
Field of view: 60x40 arcmins
Also check out Where is Comet Leonard (C/2021 A1)?, a page that provides all the information needed to find Comet Leonard (C/2021 A1) in the sky and additional links to sky charts.
Comet Leonard (C/2021 A1) Distance from Earth
The distance of Comet Leonard (C/2021 A1) from Earth is currently 817,215,911 kilometers, equivalent to 5.462751 Astronomical Units. Light takes 45 minutes and 25.9389 seconds to travel from Comet Leonard (C/2021 A1) and arrive to us.
The following chart shows the distance of Comet Leonard (C/2021 A1) 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/2021 A1 (Leonard) from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach of Comet Leonard (C/2021 A1) to Earth
Between 1 January 2013 and 30 December 2100, the closest approach of Comet Leonard (C/2021 A1) to Earth happens on Mon Dec 13 2021 at a distance of 0.233994 Astronomical Units, or 35,005,002 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Comet Leonard (C/2021 A1) Brightness and Light Curve
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet Leonard (C/2021 A1), 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 Leonard (C/2021 A1) Orbital Elements
The following table lists the orbital elements of Comet Leonard (C/2021 A1) at epoch 10 July 2021 00:00 UTC (JD: 2459406.5). Source: JPL Small-Body Database
|Perihelion distance||q||0.61523023 AU
|Date of perihelion transit||Tp||2022-Jan-03 07:01:27
|Argument of perihelion||peri||225.0877083271°|
|Longitude of the ascending node||node||255.8891008128°|
Visualization of Comet Leonard (C/2021 A1) Orbit
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet Leonard (C/2021 A1) with respect of the Sun and the orbits of the major planets. The position of Comet Leonard (C/2021 A1) 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 Leonard (C/2021 A1) in the 3D Solar System Simulator
Comet Leonard (C/2021 A1) 15 Days Ephemeris
The following table lists the ephemerides of Comet Leonard (C/2021 A1) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet Leonard (C/2021 A1) in our Online Planetarium at the chosen date.
|2023 May 21||16h 45m 11s||-14° 28’ 50”||19.79||Ophiucus|
|2023 May 22||16h 44m 21s||-14° 25’ 42”||19.80||Ophiucus|
|2023 May 23||16h 43m 33s||-14° 22’ 36”||19.80||Ophiucus|
|2023 May 24||16h 42m 44s||-14° 19’ 31”||19.81||Ophiucus|
|2023 May 25||16h 41m 57s||-14° 16’ 27”||19.81||Ophiucus|
|2023 May 26||16h 41m 08s||-14° 13’ 23”||19.82||Ophiucus|
|2023 May 27||16h 40m 19s||-14° 10’ 20”||19.82||Ophiucus|
|2023 May 28||16h 39m 32s||-14° 07’ 21”||19.83||Ophiucus|
|2023 May 29||16h 38m 44s||-14° 04’ 20”||19.84||Ophiucus|
|2023 May 30||16h 37m 55s||-14° 01’ 23”||19.84||Ophiucus|
|2023 May 31||16h 37m 08s||-13° 58’ 26”||19.85||Ophiucus|
|2023 Jun 01||16h 36m 20s||-13° 55’ 30”||19.85||Ophiucus|
|2023 Jun 02||16h 35m 31s||-13° 52’ 36”||19.86||Ophiucus|
|2023 Jun 03||16h 34m 45s||-13° 49’ 44”||19.87||Ophiucus|