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Comet 28P/Neujmin 1

Comet 28P/Neujmin 1 is currently in the constellation of Scorpius. The current Right Ascension of Comet 28P/Neujmin 1 is 16h 29m 58s and the Declination is -32° 25’ 05” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 28P/Neujmin 1 is 17.07 (JPL).

Summary of key facts about Comet 28P/Neujmin 1 [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

16h 29m 58s
-32° 25’ 05”

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Additional information about Comet 28P/Neujmin 1 available on TheSkyLive:

Available Resources

Comet 28P/Neujmin 1 Position and Finder Charts

Below we provide Comet 28P/Neujmin 1 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.

Map showing Comet 28P/Neujmin 1 in Scorpius on October, 31 2020
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 28P/Neujmin 1 in Scorpius on October, 31 2020
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet 28P/Neujmin 1 is right now. Click on the image to see a more detailed fullscreen tracker view.

28P/Neujmin 1
RA: 16h 29m 58s
Dec: -32° 25’ 05”
Deep sky finder chart for Comet 28P/Neujmin 1
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 28P/Neujmin 1?, a page that provides all the information needed to find Comet 28P/Neujmin 1 in the sky and additional links to sky charts.

Comet 28P/Neujmin 1 Distance from Earth

The distance of Comet 28P/Neujmin 1 from Earth is currently 439,905,651 kilometers, equivalent to 2.940588 Astronomical Units. Light takes 24 minutes and 27.3673 seconds to travel from Comet 28P/Neujmin 1 and arrive to us.

24 minutes and 27.3673 seconds

The following chart shows the distance of Comet 28P/Neujmin 1 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.

Distance of Comet 28P/Neujmin 1 from Earth between January 2013 and December 2100

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 1 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 28P/Neujmin 1 to Earth

Between January 2013 and December 2100, the closest approach of Comet 28P/Neujmin 1 to Earth happens on Sun Sep 11 2039 at a distance of 0.786578 Astronomical Units, or 117,670,386 kilometers:

Sun Sep 11 2039

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

Comet 28P/Neujmin 1 brightness

The current visual magnitude of Comet 28P/Neujmin 1 is 17.07.


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 28P/Neujmin 1, 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.

Predicted magnitude of Comet 28P/Neujmin 1 between January 2013 and December 2100

Comet 28P/Neujmin 1 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 28P/Neujmin 1 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 122.4°
Max altitude: 6.1°
Azimuth: 237.6°

The rise and set times are defined as the time at which the upper limb of Comet 28P/Neujmin 1 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 28P/Neujmin 1 Orbital Elements

The following table lists the orbital elements of Comet 28P/Neujmin 1 at epoch 26 September 2011 00:00 UTC (JD: 2455831.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.77407450
Orbit inclination i 14.37789640°
Perihelion distance q 1.56398559 AU
233,968,914 km
Aphelion distance Q 12.28115889 AU
1,837,235,224 km
Semi-major axis a 6.92257224 AU
1,035,602,069 km
Orbital period period 18.2100 years
6,652.7265 days
Date of perihelion transit Tp 2002-Dec-28 03:29:23
2,452,636.6454 JD
Next perihelion transit 2021-Mar-15 20:55
2,459,289.3719 JD
Argument of perihelion peri 347.73865308227°
Longitude of the ascending node node 346.31609703174°
Mean anomaly M 172.8836510575°
Mean motion n 0.05411315°/day

Visualization of Comet 28P/Neujmin 1 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 28P/Neujmin 1 with respect of the Sun and the orbits of the major planets. The position of Comet 28P/Neujmin 1 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 1
View Comet 28P/Neujmin 1 in the 3D Solar System Simulator

Comet 28P/Neujmin 1 15 Days Ephemeris

The following table lists the ephemerides of Comet 28P/Neujmin 1 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 1 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Oct 24 16h 11m 54s -32° 04’ 45” 17.13 Scorpius
2020 Oct 25 16h 14m 09s -32° 07’ 36” 17.12 Scorpius
2020 Oct 26 16h 16m 26s -32° 10’ 23” 17.11 Scorpius
2020 Oct 27 16h 18m 43s -32° 13’ 06” 17.11 Scorpius
2020 Oct 28 16h 21m 02s -32° 15’ 45” 17.10 Scorpius
2020 Oct 29 16h 23m 21s -32° 18’ 19” 17.09 Scorpius
2020 Oct 30 16h 25m 41s -32° 20’ 47” 17.08 Scorpius
2020 Oct 31 16h 28m 03s -32° 23’ 11” 17.08 Scorpius
2020 Nov 01 16h 30m 24s -32° 25’ 28” 17.07 Scorpius
2020 Nov 02 16h 32m 48s -32° 27’ 42” 17.06 Scorpius
2020 Nov 03 16h 35m 12s -32° 29’ 48” 17.05 Scorpius
2020 Nov 04 16h 37m 39s -32° 31’ 50” 17.05 Scorpius
2020 Nov 05 16h 40m 05s -32° 33’ 44” 17.04 Scorpius
2020 Nov 06 16h 42m 33s -32° 35’ 34” 17.03 Scorpius