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

Comet C/2019 L3 (ATLAS) reaches peak brightness

Dominic Ford, Editor
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Comet C/2019 L3 (ATLAS) is forecast to reach the brightest point in its 2022 apparition on 6 January. At that time, it will lie at a distance of 3.56 AU from the Sun, and at a distance of 2.58 AU from the Earth.

From Fairfield on 6 January it will be visible between 18:02 and 05:43. It will become accessible at around 18:02, when it rises to an altitude of 21° above your north-eastern horizon. It will reach its highest point in the sky at 23:52, 80° above your southern horizon. It will become inaccessible at around 05:43 when it sinks below 21° above your north-western horizon.

Begin typing the name of a town near to you, and then select the town from the list of options which appear below.

The events that comprise the 2021–2022 apparition of C/2019 L3 (ATLAS) are as follows:

Date Event
06 Jan 2022Comet C/2019 L3 (ATLAS) reaches peak brightness
09 Jan 2022Comet C/2019 L3 (ATLAS) passes perihelion

The table below lists the times when C/2019 L3 (ATLAS) will be visible from Fairfield day-by-day through its apparition:

Date Constellation Comet visibility
16 Dec 2021AurigaVisible from 19:37 until 05:58
Highest at 01:39, 84° above S horizon
18 Dec 2021GeminiVisible from 19:28 until 05:59
Highest at 01:30, 84° above S horizon
20 Dec 2021GeminiVisible from 19:20 until 06:00
Highest at 01:20, 84° above S horizon
22 Dec 2021GeminiVisible from 19:11 until 06:01
Highest at 01:10, 83° above S horizon
24 Dec 2021GeminiVisible from 19:02 until 06:02
Highest at 01:00, 83° above S horizon
26 Dec 2021GeminiVisible from 18:53 until 06:03
Highest at 00:50, 83° above S horizon
28 Dec 2021GeminiVisible from 18:45 until 06:03
Highest at 00:40, 82° above S horizon
30 Dec 2021GeminiVisible from 18:36 until 06:04
Highest at 00:30, 82° above S horizon
01 Jan 2022GeminiVisible from 18:27 until 06:04
Highest at 00:20, 82° above S horizon
03 Jan 2022GeminiVisible from 18:19 until 06:02
Highest at 00:11, 81° above S horizon
05 Jan 2022GeminiVisible from 18:06 until 05:47
Highest at 23:57, 81° above S horizon
07 Jan 2022GeminiVisible from 17:57 until 05:36
Highest at 23:47, 80° above S horizon
09 Jan 2022GeminiVisible from 17:52 until 05:25
Highest at 23:37, 80° above S horizon
11 Jan 2022GeminiVisible from 17:54 until 05:14
Highest at 23:27, 80° above S horizon
13 Jan 2022GeminiVisible from 17:56 until 05:03
Highest at 23:17, 79° above S horizon
15 Jan 2022GeminiVisible from 17:58 until 04:51
Highest at 23:07, 79° above S horizon
17 Jan 2022GeminiVisible from 18:00 until 04:40
Highest at 22:58, 78° above S horizon
19 Jan 2022GeminiVisible from 18:02 until 04:29
Highest at 22:48, 78° above S horizon
21 Jan 2022GeminiVisible from 18:04 until 04:18
Highest at 22:38, 78° above S horizon
23 Jan 2022GeminiVisible from 18:06 until 04:07
Highest at 22:29, 77° above S horizon
25 Jan 2022GeminiVisible from 18:09 until 03:57
Highest at 22:19, 77° above S horizon

A more detailed table of C/2019 L3 (ATLAS)'s position on each night is available here. A diagram of the orbit of C/2019 L3 (ATLAS) is available here.

Finder chart

The chart below shows the path of C/2019 L3 (ATLAS) 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 C/2019 L3 (ATLAS) is currently available.

The comet's position on 6 January 2022 will be:

Object Right Ascension Declination Constellation Magnitude
Comet C/2019 L3 (ATLAS) 07h06m30s 31°54'N Gemini 8.3

The coordinates are given in J2000.0.

The sky on 6 Jan 2022

The sky on 6 January 2022
Sunrise
07:16
Sunset
16:38
Twilight ends
18:17
Twilight begins
05:37

4-day old moon
Waxing Crescent

24%

4 days old

Planets
Rise Culm. Set
Mercury 08:29 13:19 18:08
Venus 07:12 12:11 17:09
Moon 10:28 15:46 21:14
Mars 05:14 09:51 14:27
Jupiter 09:41 15:02 20:23
Saturn 08:49 13:47 18:45
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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Longitude:
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41.14°N
73.26°W
EST

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