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Comet 402P/LINEAR

Comet 402P/LINEAR is currently in the constellation of Eridanus. The current Right Ascension of Comet 402P/LINEAR is 04h 02m 48s and the Declination is -02° 19’ 44” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 402P/LINEAR is 18.18 (JPL).

Summary of key facts about Comet 402P/LINEAR [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]:

04h 02m 48s
-02° 19’ 44”
Eridanus
18.18

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 information about Comet 402P/LINEAR available on TheSkyLive:

Available Resources

Comet 402P/LINEAR Position and Finder Charts

Below we provide Comet 402P/LINEAR 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 402P/LINEAR in Eridanus on May, 07 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 402P/LINEAR in Eridanus on May, 07 2021
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 402P/LINEAR is right now. Click on the image to see a more detailed fullscreen tracker view.

402P/LINEAR
RA: 04h 02m 48s
Dec: -02° 19’ 44”
Deep sky finder chart for Comet 402P/LINEAR
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 402P/LINEAR?, a page that provides all the information needed to find Comet 402P/LINEAR in the sky and additional links to sky charts.

Comet 402P/LINEAR Distance from Earth

The distance of Comet 402P/LINEAR from Earth is currently 751,972,796 kilometers, equivalent to 5.026628 Astronomical Units. Light takes 41 minutes and 48.3113 seconds to travel from Comet 402P/LINEAR and arrive to us.

751,972,796
5.026628
41 minutes and 48.3113 seconds

The following chart shows the distance of Comet 402P/LINEAR 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 402P/LINEAR 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 402P/LINEAR from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 402P/LINEAR to Earth

Between January 2013 and December 2100, the closest approach of Comet 402P/LINEAR to Earth happens on Tue Dec 28 2021 at a distance of 3.002067 Astronomical Units, or 449,102,778 kilometers:

Tue Dec 28 2021
449,102,778
3.002067

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

Comet 402P/LINEAR brightness

The current visual magnitude of Comet 402P/LINEAR is 18.18.

18.18
-
-

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 402P/LINEAR, 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 402P/LINEAR between January 2013 and December 2100

Comet 402P/LINEAR 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 402P/LINEAR rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 92.4°
Max altitude: 36.1°
Azimuth: 267.7°

The rise and set times are defined as the time at which the upper limb of Comet 402P/LINEAR 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 402P/LINEAR Orbital Elements

The following table lists the orbital elements of Comet 402P/LINEAR at epoch 18 March 2007 00:00 UTC (JD: 2454178.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.43661593
Orbit inclination i 30.84167463°
Perihelion distance q 3.94652244 AU
590,391,355 km
Aphelion distance Q 10.06353805 AU
1,505,483,866 km
Semi-major axis a 7.00503024 AU
1,047,937,611 km
Orbital period period 18.5400 years
6,771.9454 days
Date of perihelion transit Tp 2003-Jun-28 09:22:10
2,452,818.8904 JD
Next perihelion transit 2022-Jan-11 08:03
2,459,590.8358 JD
Argument of perihelion peri 327.20745952793°
Longitude of the ascending node node 123.21805149246°
Mean anomaly M 72.27752531407°
Mean motion n 0.05316050°/day

Visualization of Comet 402P/LINEAR Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 402P/LINEAR with respect of the Sun and the orbits of the major planets. The position of Comet 402P/LINEAR 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 402P/LINEAR
View Comet 402P/LINEAR in the 3D Solar System Simulator

Comet 402P/LINEAR 15 Days Ephemeris

The following table lists the ephemerides of Comet 402P/LINEAR computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 402P/LINEAR in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Apr 30 03h 53m 50s -03° 11’ 12” 18.20 Eridanus
2021 May 01 03h 54m 57s -03° 04’ 31” 18.20 Eridanus
2021 May 02 03h 56m 04s -02° 57’ 52” 18.20 Eridanus
2021 May 03 03h 57m 12s -02° 51’ 19” 18.19 Eridanus
2021 May 04 03h 58m 19s -02° 44’ 48” 18.19 Eridanus
2021 May 05 03h 59m 27s -02° 38’ 21” 18.19 Eridanus
2021 May 06 04h 00m 35s -02° 31’ 59” 18.19 Eridanus
2021 May 07 04h 01m 44s -02° 25’ 40” 18.19 Eridanus
2021 May 08 04h 02m 52s -02° 19’ 24” 18.18 Eridanus
2021 May 09 04h 04m 00s -02° 13’ 14” 18.18 Eridanus
2021 May 10 04h 05m 08s -02° 07’ 05” 18.18 Eridanus
2021 May 11 04h 06m 16s -02° 01’ 03” 18.18 Eridanus
2021 May 12 04h 07m 26s -01° 55’ 03” 18.17 Eridanus
2021 May 13 04h 08m 35s -01° 49’ 06” 18.17 Eridanus