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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:39  
clear_day Transit: 12:56  
SunsetSet: 20:14
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Comets » 

Comet 242P/Spahr

Altitude: 20.1°   Azimuth: 119.3°   Direction: East-South-East

Comet 242P/Spahr is currently in the constellation of Cetus, at a distance of 760,122,339 kilometers from Earth.

Finder chart of 242P/Spahr in Cetus on April,27 2024
Map showing Comet 242P/Spahr in Cetus on April, 27 2024. Field of view: 50x30 degrees
View interactive star map
The current Right Ascension of Comet 242P/Spahr is 02h 09m 44s and the Declination is -01° 00’ 43” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of Comet 242P/Spahr is 19.19 (JPL).

02h 09m 44s
-01° 00’ 43”
Cetus
n/a
n/a
n/a
n/a
19.19

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 242P/Spahr from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

Azimuth: 91.0°
Max altitude: 37.5°
Azimuth: 269.0°
  • 242P/Spahr is above the horizon from Greenwich, United Kingdom edit_location_alt.
  • Right now it is placed in the East-South-East direction at an altitude of 20° above the horizon.
  • Given its current magnitude, 242P/Spahr 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.

Additional Resources

Comet 242P/Spahr Position and Finder Charts

Finder chart of 242P/Spahr
Map showing Comet 242P/Spahr in Cetus on April, 27 2024
Field of view: 10x6 degrees
View fullscreen

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet 242P/Spahr is right now. Click on the image to see a more detailed fullscreen tracker view.

242P/Spahr
RA: 02h 09m 44s
Dec: -01° 00’ 43”
Deep sky finder chart for Comet 242P/Spahr
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 242P/Spahr?, a page that provides all the information needed to find Comet 242P/Spahr in the sky and additional links to sky charts.

Comet 242P/Spahr Distance from Earth

The distance of Comet 242P/Spahr from Earth is currently 760,122,339 kilometers, equivalent to 5.081104 Astronomical Units. Light takes 42 minutes and 15.4952 seconds to travel from Comet 242P/Spahr and arrive to us.

760,122,339
5.081104
42 minutes and 15.4952 seconds

The following chart shows the distance of Comet 242P/Spahr 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 242P/Spahr 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 242P/Spahr from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet 242P/Spahr to Earth

Between 1 January 2000 and 31 December 2099, the closest approach of Comet 242P/Spahr to Earth happens on Fri Oct 17 2036 at a distance of 3.065836 Astronomical Units, or 458,642,481 kilometers:

Fri Oct 17 2036
458,642,481
3.065836

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

Comet 242P/Spahr Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 242P/Spahr, 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 242P/Spahr as a function of time

Comet 242P/Spahr Orbital Elements

The following table lists the orbital elements of Comet 242P/Spahr at epoch 30 September 2010 00:00 UTC (JD: 2455470.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.31060857
Orbit inclination i 32.70387937°
Perihelion distance q 3.91921318 AU
586,305,948 km
Aphelion distance Q 7.45085331 AU
1,114,631,792 km
Semi-major axis a 5.68503324 AU
850,468,870 km
Orbital period period 13.5553 years
4,951.0572 days
Date of perihelion transit Tp 2012-Mar-31 17:06:43
2,456,018.2130 JD
Next perihelion transit 2025-Oct-20 18:29
2,460,969.2702 JD
Argument of perihelion peri 248.52949968913°
Longitude of the ascending node node 181.02804796066°
Mean anomaly M 320.17483230633°
Mean motion n 0.07271174°/day

Visualization of Comet 242P/Spahr Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 242P/Spahr with respect of the Sun and the orbits of the major planets. The position of Comet 242P/Spahr 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 242P/Spahr
View Comet 242P/Spahr in the 3D Solar System Simulator

Comet 242P/Spahr 15 Days Ephemeris

The following table lists the ephemerides of Comet 242P/Spahr computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 242P/Spahr in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2024 Apr 20 02h 01m 19s -01° 22’ 57” 19.21 Cetus
2024 Apr 21 02h 02m 29s -01° 19’ 46” 19.21 Cetus
2024 Apr 22 02h 03m 37s -01° 16’ 40” 19.20 Cetus
2024 Apr 23 02h 04m 45s -01° 13’ 35” 19.20 Cetus
2024 Apr 24 02h 05m 53s -01° 10’ 32” 19.20 Cetus
2024 Apr 25 02h 07m 03s -01° 07’ 32” 19.20 Cetus
2024 Apr 26 02h 08m 12s -01° 04’ 36” 19.19 Cetus
2024 Apr 27 02h 09m 20s -01° 01’ 41” 19.19 Cetus
2024 Apr 28 02h 10m 28s -00° 58’ 49” 19.19 Cetus
2024 Apr 29 02h 11m 38s -00° 55’ 59” 19.18 Cetus
2024 Apr 30 02h 12m 47s -00° 53’ 12” 19.18 Cetus
2024 May 01 02h 13m 55s -00° 50’ 29” 19.18 Cetus
2024 May 02 02h 15m 05s -00° 47’ 48” 19.17 Cetus
2024 May 03 02h 16m 14s -00° 45’ 11” 19.17 Cetus