Comet 45P/Honda-Mrkos-Pajdusakova passes perihelion

Dominic Ford, Editor
From the Comets feed


Comet 45P/Honda-Mrkos-Pajdusakova will make its closest approach to the Sun on 27 April, at a distance of 0.56 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 6° from it.

The events that comprise the 2022 apparition of 45P/Honda-Mrkos-Pajdusakova are as follows:

Date Event
27 Apr 2022Comet 45P/Honda-Mrkos-Pajdusakova passes perihelion

The table below lists the times when 45P/Honda-Mrkos-Pajdusakova will be visible from Fairfield day-by-day through its apparition:

Date Constellation Comet visibility
06 Apr 2022CetusNot observable
08 Apr 2022PiscesNot observable
10 Apr 2022PiscesNot observable
12 Apr 2022PiscesNot observable
14 Apr 2022PiscesNot observable
16 Apr 2022PiscesNot observable
18 Apr 2022PiscesNot observable
20 Apr 2022AriesNot observable
22 Apr 2022AriesNot observable
24 Apr 2022AriesNot observable
26 Apr 2022AriesNot observable
28 Apr 2022AriesNot observable
30 Apr 2022AriesNot observable
02 May 2022TaurusNot observable
04 May 2022TaurusNot observable
06 May 2022TaurusNot observable
08 May 2022TaurusNot observable
10 May 2022TaurusNot observable
12 May 2022TaurusNot observable
14 May 2022TaurusNot observable
16 May 2022TaurusNot observable

A more detailed table of 45P/Honda-Mrkos-Pajdusakova's position on each night is available here. A diagram of the orbit of 45P/Honda-Mrkos-Pajdusakova is available here.

Finder chart

The chart below shows the path of 45P/Honda-Mrkos-Pajdusakova 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 45P/Honda-Mrkos-Pajdusakova is currently available.

The comet's position at perihelion will be:

Object Right Ascension Declination Constellation Magnitude
Comet 45P/Honda-Mrkos-Pajdusakova 02h46m30s 15°13'N Aries 8.8

The coordinates are given in J2000.0.

The sky on 27 Apr 2022

The sky on 27 April 2022
Sunrise
05:54
Sunset
19:45
Twilight ends
21:30
Twilight begins
04:09


Waning Crescent

7%

26 days old

Planets
Rise Culm. Set
Mercury 06:41 14:08 21:34
Venus 04:19 10:10 16:01
Moon 04:47 10:32 16:28
Mars 03:46 09:16 14:45
Jupiter 04:26 10:21 16:16
Saturn 03:06 08:16 13:27
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 13 Oct 2024.

Image credit

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

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