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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:47  
clear_day Transit: 12:50  
SunsetSet: 18:52 south
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Comets » 

Comet 28P/Neujmin

Altitude: -9.3°   Azimuth: 353.8°   Direction: North

Comet 28P/Neujmin is currently in the constellation of Cancer. The current Right Ascension of Comet 28P/Neujmin is 08h 37m 53s and the Declination is +28° 59’ 53” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of Comet 28P/Neujmin is 21.56 (JPL).

08h 37m 53s
+28° 59’ 53”

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 28P/Neujmin from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

Azimuth: 61.0°
Max altitude: 67.5°
Azimuth: 299.0°
  • 28P/Neujmin is below the horizon from Greenwich, United Kingdom edit_location_alt.
  • Given its current magnitude, 28P/Neujmin 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.

Available Resources

Comet 28P/Neujmin Position and Finder Charts

Below we provide Comet 28P/Neujmin 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 28P/Neujmin in Cancer on September,24 2023
Map showing Comet 28P/Neujmin in Cancer on September, 24 2023
Field of view: 50x30 degrees
View fullscreen
Finder chart of 28P/Neujmin
Map showing Comet 28P/Neujmin in Cancer on September, 24 2023
Field of view: 10x6 degrees
View fullscreen

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet 28P/Neujmin is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 08h 37m 53s
Dec: +28° 59’ 53”
Deep sky finder chart for Comet 28P/Neujmin
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 28P/Neujmin?, a page that provides all the information needed to find Comet 28P/Neujmin in the sky and additional links to sky charts.

Comet 28P/Neujmin Distance from Earth

The distance of Comet 28P/Neujmin from Earth is currently 1,170,949,558 kilometers, equivalent to 7.827314 Astronomical Units. Light takes 1 hours, 5 minutes and 5.8673 seconds to travel from Comet 28P/Neujmin and arrive to us.

1 hours, 5 minutes and 5.8673 seconds

The following chart shows the distance of Comet 28P/Neujmin 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 28P/Neujmin 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 28P/Neujmin from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet 28P/Neujmin to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Comet 28P/Neujmin to Earth happens on Sun Sep 11 2039 at a distance of 0.786575 Astronomical Units, or 117,669,931 kilometers:

Sun Sep 11 2039

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

Comet 28P/Neujmin Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 28P/Neujmin, 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 28P/Neujmin as a function of time

Comet 28P/Neujmin Orbital Elements

The following table lists the orbital elements of Comet 28P/Neujmin at epoch 05 February 2016 00:00 UTC (JD: 2457424.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.77244794
Orbit inclination i 14.31693142°
Perihelion distance q 1.57863617 AU
236,160,610 km
Aphelion distance Q 12.29630887 AU
1,839,501,628 km
Semi-major axis a 6.93747252 AU
1,037,831,119 km
Orbital period period 18.2730 years
6,674.2173 days
Date of perihelion transit Tp 2021-Mar-15 14:58:34
2,459,289.1240 JD
Next perihelion transit 2039-Jun-23 20:11
2,465,963.3413 JD
Argument of perihelion peri 347.58180991202°
Longitude of the ascending node node 346.35031736435°
Mean anomaly M 259.42421470812°
Mean motion n 0.05393891°/day

Visualization of Comet 28P/Neujmin Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 28P/Neujmin with respect of the Sun and the orbits of the major planets. The position of Comet 28P/Neujmin 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 28P/Neujmin
View Comet 28P/Neujmin in the 3D Solar System Simulator

Comet 28P/Neujmin 15 Days Ephemeris

The following table lists the ephemerides of Comet 28P/Neujmin computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 28P/Neujmin in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Sep 17 08h 34m 24s +29° 05’ 35” 21.57 Cancer
2023 Sep 18 08h 34m 53s +29° 04’ 45” 21.57 Cancer
2023 Sep 19 08h 35m 20s +29° 03’ 57” 21.57 Cancer
2023 Sep 20 08h 35m 47s +29° 03’ 11” 21.57 Cancer
2023 Sep 21 08h 36m 14s +29° 02’ 26” 21.57 Cancer
2023 Sep 22 08h 36m 41s +29° 01’ 45” 21.57 Cancer
2023 Sep 23 08h 37m 06s +29° 01’ 04” 21.57 Cancer
2023 Sep 24 08h 37m 32s +29° 00’ 25” 21.56 Cancer
2023 Sep 25 08h 37m 58s +28° 59’ 48” 21.56 Cancer
2023 Sep 26 08h 38m 21s +28° 59’ 15” 21.56 Cancer
2023 Sep 27 08h 38m 47s +28° 58’ 41” 21.56 Cancer
2023 Sep 28 08h 39m 11s +28° 58’ 11” 21.56 Cancer
2023 Sep 29 08h 39m 34s +28° 57’ 43” 21.56 Cancer
2023 Sep 30 08h 39m 57s +28° 57’ 16” 21.56 Cancer