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

Comet 144P/Kushida passes perihelion

Dominic Ford, Editor
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Comet 144P/Kushida will make its closest approach to the Sun on 25 January, at a distance of 1.40 AU.

From Fairfield on the day of perihelion it will be visible in the evening sky, becoming accessible around 18:08 (EST), 59° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 19:25, 64° above your southern horizon. It will continue to be observable until around 00:21, when it sinks below 21° above your western horizon.

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The events that comprise the 2023–2024 apparition of 144P/Kushida are as follows:

Date Event
25 Jan 2024Comet 144P/Kushida passes perihelion

The table below lists the times when 144P/Kushida will be visible from Fairfield day-by-day through its apparition:

Date Constellation Comet visibility
04 Jan 2024AriesVisible from 17:47 until 00:59
Highest at 20:06, 63° above S horizon
06 Jan 2024AriesVisible from 17:49 until 00:54
Highest at 20:02, 63° above S horizon
08 Jan 2024AriesVisible from 17:51 until 00:50
Highest at 19:57, 63° above S horizon
10 Jan 2024AriesVisible from 17:53 until 00:46
Highest at 19:53, 63° above S horizon
12 Jan 2024TaurusVisible from 17:55 until 00:42
Highest at 19:49, 63° above S horizon
14 Jan 2024TaurusVisible from 17:56 until 00:38
Highest at 19:45, 63° above S horizon
16 Jan 2024TaurusVisible from 17:58 until 00:35
Highest at 19:41, 64° above S horizon
18 Jan 2024TaurusVisible from 18:01 until 00:32
Highest at 19:38, 64° above S horizon
20 Jan 2024TaurusVisible from 18:03 until 00:29
Highest at 19:34, 64° above S horizon
22 Jan 2024TaurusVisible from 18:05 until 00:26
Highest at 19:31, 64° above S horizon
24 Jan 2024TaurusVisible from 18:07 until 00:23
Highest at 19:28, 64° above S horizon
26 Jan 2024TaurusVisible from 18:09 until 00:21
Highest at 19:25, 64° above S horizon
28 Jan 2024TaurusVisible from 18:11 until 00:18
Highest at 19:22, 64° above S horizon
30 Jan 2024TaurusVisible from 18:13 until 00:16
Highest at 19:19, 64° above S horizon
01 Feb 2024TaurusVisible from 18:16 until 00:14
Highest at 19:17, 65° above S horizon
03 Feb 2024TaurusVisible from 18:18 until 00:12
Highest at 19:14, 65° above S horizon
05 Feb 2024TaurusVisible from 18:20 until 00:10
Highest at 19:12, 65° above S horizon
07 Feb 2024TaurusVisible from 18:22 until 00:08
Highest at 19:10, 65° above S horizon
09 Feb 2024TaurusVisible from 18:25 until 00:07
Highest at 19:08, 65° above S horizon
11 Feb 2024TaurusVisible from 18:27 until 00:05
Highest at 19:06, 65° above S horizon
13 Feb 2024TaurusVisible from 18:29 until 00:04
Highest at 19:03, 65° above S horizon

A more detailed table of 144P/Kushida's position on each night is available here. A diagram of the orbit of 144P/Kushida is available here.

Finder chart

The chart below shows the path of 144P/Kushida 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.

Based on the magnitude parameters published for this comet by the BAA Comet Section, we estimate that it may be around mag 10 on 25 January 2024. This estimate is based on observations that the BAA has received from amateur astronomers, assuming that its current level of activity will remain constant.

You will probably require a telescope to see this comet. It is unlikely to be visible through bird-watching binoculars, and even less likely to be visible to the unaided eye.

The comet's position at perihelion will be:

Object Right Ascension Declination Constellation Magnitude
Comet 144P/Kushida 03h51m50s 15°13'N Taurus 10.2

The coordinates are given in J2000.0.

The sky on 25 Jan 2024

The sky on 25 January 2024
Sunrise
07:08
Sunset
16:59
Twilight ends
18:35
Twilight begins
05:32

14-day old moon
Waning Gibbous

99%

14 days old

Planets
Rise Culm. Set
Mercury 06:00 10:37 15:13
Venus 05:07 09:46 14:25
Moon 16:54 00:30 07:57
Mars 06:07 10:42 15:17
Jupiter 11:03 17:51 00:39
Saturn 08:42 14:05 19:29
All times shown in EST.

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 10 Dec 2024.

Image credit

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

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Fairfield

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41.14°N
73.26°W
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