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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:00  
clear_day Transit: 12:48  
SunsetSet: 18:34 south
sunny DaytimeWhat's Visible Now
Comets » 

Comet C/2023 P1 (Nishimura)

Altitude: 22.1°   Azimuth: 180.9°   Direction: South

Comet C/2023 P1 (Nishimura) has been discovered on August 11, 2023 by amateur astronomer Hideo Nishimura. The comet will pass its perihelion on September 18, 2023, at a distance of 34 million kilometers from the Sun (or 0.23 Astronomical Units). During its journey, it will reach the closest approach to Earth on September 13, 2023 at a distance of 128 million kilometers (or 0.85 Astronomical Units). The maximum brightness will happen on September 17, when the comet is predicted to reach magnitude 5, which could make it potentially visible to the naked eye. On that day, from the Northern Hemisphere, attempts to locate comet C/2023 P1 (Nishimura) in the sky - which will be in the constellation of Virgo - should be made soon after sunset, as it will set about one hour after the Sun. Useful maps to locate the comet from your location can be obtained using TheSkyLive Planetarium.

Comet C/2023 P1 (Nishimura) is currently in the constellation of Virgo. The current Right Ascension of Comet C/2023 P1 (Nishimura) is 13h 03m 33s and the Declination is -16° 25’ 43” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of Comet C/2023 P1 (Nishimura) is 9.53 (JPL) while the latest observed magnitude is 4.6 (COBS).

13h 03m 33s
-16° 25’ 43”

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 C/2023 P1 (Nishimura) from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

Azimuth: 106.2°
Max altitude: 22.1°
Azimuth: 253.4°
  • C/2023 P1 (Nishimura) is above the horizon from Greenwich, United Kingdom edit_location_alt.
  • Right now it is placed in the South direction at an altitude of 22° above the horizon.
  • Given its current magnitude, C/2023 P1 (Nishimura) is barely visible to the naked eye, easily visible with the help of a small binocular.
  • 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.

Available Resources

Comet C/2023 P1 (Nishimura) Position and Finder Charts

Below we provide Comet C/2023 P1 (Nishimura) 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.

Finder chart of C/2023 P1 (Nishimura) in Virgo on October,02 2023
Map showing Comet C/2023 P1 (Nishimura) in Virgo on October, 02 2023
Field of view: 50x30 degrees
View fullscreen
Finder chart of C/2023 P1 (Nishimura)
Map showing Comet C/2023 P1 (Nishimura) in Virgo on October, 02 2023
Field of view: 10x6 degrees
View fullscreen

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2023 P1 (Nishimura) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2023 P1 (Nishimura)
RA: 13h 03m 33s
Dec: -16° 25’ 43”
Deep sky finder chart for Comet C/2023 P1 (Nishimura)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2023 P1 (Nishimura)?, a page that provides all the information needed to find Comet C/2023 P1 (Nishimura) in the sky and additional links to sky charts.

Comet C/2023 P1 (Nishimura) Distance from Earth

The distance of Comet C/2023 P1 (Nishimura) from Earth is currently 213,866,944 kilometers, equivalent to 1.429612 Astronomical Units. Light takes 11 minutes and 53.3833 seconds to travel from Comet C/2023 P1 (Nishimura) and arrive to us.

11 minutes and 53.3833 seconds

The following chart shows the distance of Comet C/2023 P1 (Nishimura) 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.

Chart of the distance of Comet C/2023 P1 (Nishimura) from Earth in Astronomical Units (au)

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/2023 P1 (Nishimura) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet C/2023 P1 (Nishimura) to Earth

Between 1 January 2000 and 31 December 2099, the closest approach of Comet C/2023 P1 (Nishimura) to Earth happens on Wed Sep 13 2023 at a distance of 0.853948 Astronomical Units, or 127,748,861 kilometers:

Wed Sep 13 2023

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

Comet C/2023 P1 (Nishimura) Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2023 P1 (Nishimura), 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.

Chart of the magnitude of Comet C/2023 P1 (Nishimura) as a function of time

Comet C/2023 P1 (Nishimura) Orbital Elements

The following table lists the orbital elements of Comet C/2023 P1 (Nishimura) at epoch 13 August 2023 00:00 UTC (JD: 2460170.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.04427384
Orbit inclination i 129.16639834°
Perihelion distance q 0.22603538 AU
33,814,412 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2023-Sep-18 00:18:34
2,460,205.5129 JD
Argument of perihelion peri 115.3336688248°
Longitude of the ascending node node 68.947088814601°
Mean anomaly M -2.9914952905709°
Mean motion n 0.08543980°/day

Visualization of Comet C/2023 P1 (Nishimura) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2023 P1 (Nishimura) with respect of the Sun and the orbits of the major planets. The position of Comet C/2023 P1 (Nishimura) 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 C/2023 P1 (Nishimura)
View Comet C/2023 P1 (Nishimura) in the 3D Solar System Simulator

Comet C/2023 P1 (Nishimura) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2023 P1 (Nishimura) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2023 P1 (Nishimura) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Sep 25 12h 58m 17s -07° 13’ 19” 7.13 Virgo
2023 Sep 26 12h 59m 39s -08° 46’ 10” 7.51 Virgo
2023 Sep 27 13h 00m 41s -10° 11’ 35” 7.87 Virgo
2023 Sep 28 13h 01m 30s -11° 30’ 32” 8.21 Virgo
2023 Sep 29 13h 02m 08s -12° 43’ 48” 8.53 Virgo
2023 Sep 30 13h 02m 39s -13° 52’ 05” 8.84 Virgo
2023 Oct 01 13h 03m 03s -14° 55’ 59” 9.12 Virgo
2023 Oct 02 13h 03m 24s -15° 56’ 03” 9.40 Virgo
2023 Oct 03 13h 03m 42s -16° 52’ 42” 9.66 Virgo
2023 Oct 04 13h 03m 56s -17° 46’ 19” 9.90 Virgo
2023 Oct 05 13h 04m 09s -18° 37’ 14” 10.13 Virgo
2023 Oct 06 13h 04m 20s -19° 25’ 45” 10.36 Virgo
2023 Oct 07 13h 04m 31s -20° 12’ 02” 10.57 Virgo
2023 Oct 08 13h 04m 41s -20° 56’ 24” 10.77 Virgo