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 4 August, 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 7° from it.

The events that comprise the 2010 apparition of 2P/Encke are as follows:

Date Event
04 Aug 2010Comet 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
14 Jul 2010GeminiNot observable
16 Jul 2010GeminiNot observable
18 Jul 2010GeminiNot observable
20 Jul 2010GeminiNot observable
22 Jul 2010GeminiNot observable
24 Jul 2010GeminiNot observable
26 Jul 2010CancerNot observable
28 Jul 2010CancerNot observable
30 Jul 2010CancerNot observable
01 Aug 2010CancerNot observable
03 Aug 2010CancerNot observable
05 Aug 2010LeoNot observable
07 Aug 2010LeoNot observable
09 Aug 2010LeoNot observable
11 Aug 2010LeoNot observable
13 Aug 2010SextansNot observable
15 Aug 2010SextansNot observable
17 Aug 2010LeoNot observable
19 Aug 2010LeoNot observable
21 Aug 2010LeoNot observable
23 Aug 2010VirgoNot 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 09h26m40s 14°34'N Leo 6.3

The coordinates are given in J2000.0.

The sky on 23 Nov 2024

The sky on 23 November 2024
Sunrise
06:48
Sunset
16:27
Twilight ends
18:04
Twilight begins
05:11


Waning Crescent

36%

22 days old

Planets
Rise Culm. Set
Mercury 08:37 13:04 17:30
Venus 10:14 14:41 19:08
Moon 23:20 06:15 12:58
Mars 20:49 04:12 11:35
Jupiter 17:22 00:49 08:16
Saturn 13:05 18:37 00:09
All times shown in EST.

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 13 Oct 2024.

Image credit

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

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