Comet 2P/Encke passes perihelion

Dominic Ford, Editor
From the Comets feed


Objects: 2P/Encke

Comet 2P/Encke will make its closest approach to the Sun on 22 November, at a distance of 0.34 AU.

From Fairfield on the day of perihelion it will not be readily observable since it will be very close to the Sun, at a separation of only 17° from it.

The events that comprise the 2013 apparition of 2P/Encke are as follows:

Date Event
22 Nov 2013Comet 2P/Encke passes perihelion

The table below lists the times when 2P/Encke will be visible from Fairfield day-by-day through its apparition:

Date Constellation Comet visibility
01 Nov 2013VirgoVisible from 06:00 until 06:15
Highest at 06:15, 25° above E horizon
03 Nov 2013VirgoVisible from 05:17 until 05:18
Highest at 05:18, 22° above E horizon
05 Nov 2013VirgoNot observable
07 Nov 2013VirgoNot observable
09 Nov 2013VirgoNot observable
11 Nov 2013VirgoNot observable
13 Nov 2013VirgoNot observable
15 Nov 2013VirgoNot observable
17 Nov 2013VirgoNot observable
19 Nov 2013VirgoNot observable
21 Nov 2013LibraNot observable
23 Nov 2013LibraNot observable
25 Nov 2013LibraNot observable
27 Nov 2013LibraNot observable
29 Nov 2013LibraNot observable
01 Dec 2013LibraNot observable
03 Dec 2013ScorpiusNot observable
05 Dec 2013ScorpiusNot observable
07 Dec 2013ScorpiusNot observable
09 Dec 2013ScorpiusNot observable
11 Dec 2013ScorpiusNot observable

A more detailed table of 2P/Encke's position on each night is available here. A diagram of the orbit of 2P/Encke is available here.

Finder chart

The chart below shows the path of 2P/Encke over the course of its apparition, as calculated from the orbital elements published by the Minor Planet Center (MPC). It is available for download, either on dark background, in PNG, PDF or SVG formats, or on a light background, in PNG, PDF or SVG formats. It was produced using StarCharter.

Comet brightnesses

Comets are intrinsically highly unpredictable objects, since their brightness depends on the scattering of sunlight from dust particles in the comet's coma and tail. This dust is continually streaming away from the comet's nucleus, and its density at any particular time is governed by the rate of sublimation of the ice in the comet's nucleus, as it is heated by the Sun's rays. It also depends on the amount of dust that is mixed in with that ice. This is very difficult to predict in advance, and can be highly variable even between successive apparitions of the same comet.

In consequence, while the future positions of comets are usually known with a high degree of confidence, their future brightnesses are not. For most comets, we do not publish any magnitude estimates at all. For the few comets where we do make estimates, we generally prefer the BAA's magnitude parameters to those published by the Minor Planet Center, since they are typically updated more often.

No estimate for the brightness of comet 2P/Encke is currently available.

The comet's position at perihelion will be:

Object Right Ascension Declination Constellation Magnitude
Comet 2P/Encke 14h39m00s 15°51'S Libra 5.9

The coordinates are given in J2000.0.

The sky on 12 May 2024

The sky on 12 May 2024
Sunrise
05:35
Sunset
20:01
Twilight ends
21:54
Twilight begins
03:42


Waxing Crescent

30%

4 days old

Planets
Rise Culm. Set
Mercury 04:42 11:10 17:38
Venus 05:23 12:24 19:24
Moon 09:03 17:09 01:06
Mars 03:52 10:04 16:15
Jupiter 05:54 13:06 20:18
Saturn 03:06 08:45 14:25
All times shown in EDT.

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

Source

This event was automatically generated on the basis of orbital elements published by the Minor Planet Center (MPC) , and is updated whenever new elements become available. It was last updated on 27 Apr 2024.

Image credit

© Andy Roberts 1997. Pictured comet is C/1995 O1 Hale-Bopp.

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