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

Comet C/2000 WM1 (LINEAR) reaches peak brightness

Dominic Ford, Editor
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Comet C/2000 WM1 (LINEAR) is forecast to reach the brightest point in its 2001 apparition on 28 November. At that time, it will lie at a distance of 1.11 AU from the Sun, and at a distance of 0.23 AU from the Earth.

From Cambridge on 28 November it will not be readily observable since it will lie so far south that it will never rise more than 11° above the horizon.

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The events that comprise the 2001–2002 apparition of C/2000 WM1 (LINEAR) are as follows:

Date Event
26 Nov 2001Comet C/2000 WM1 (LINEAR) passes perigee
28 Nov 2001Comet C/2000 WM1 (LINEAR) reaches peak brightness
12 Jan 2002Comet C/2000 WM1 (LINEAR) passes perihelion

The table below lists the times when C/2000 WM1 (LINEAR) will be visible from Cambridge day-by-day through its apparition:

Date Constellation Comet visibility
07 Nov 2001AurigaVisible from 19:42 until 05:15
Highest at 01:54, 83° above S horizon
09 Nov 2001AurigaVisible from 19:33 until 05:17
Highest at 01:42, 81° above S horizon
11 Nov 2001AurigaVisible from 19:25 until 05:20
Highest at 01:28, 79° above S horizon
13 Nov 2001TaurusVisible from 19:18 until 05:22
Highest at 01:13, 75° above S horizon
15 Nov 2001TaurusVisible from 19:12 until 05:24
Highest at 00:57, 72° above S horizon
17 Nov 2001TaurusVisible from 19:08 until 05:26
Highest at 00:40, 67° above S horizon
19 Nov 2001TaurusVisible from 19:06 until 05:29
Highest at 00:20, 60° above S horizon
21 Nov 2001TaurusVisible from 19:05 until 04:43
Highest at 23:54, 52° above S horizon
23 Nov 2001EridanusVisible from 19:16 until 03:43
Highest at 23:29, 42° above S horizon
25 Nov 2001EridanusVisible from 19:40 until 02:23
Highest at 23:01, 31° above S horizon
27 Nov 2001FornaxVisible from 20:37 until 00:21
Highest at 22:29, 20° above S horizon
29 Nov 2001FornaxNot observable
01 Dec 2001EridanusNot observable
03 Dec 2001EridanusNot observable
05 Dec 2001TucanaNot observable
07 Dec 2001TucanaNot observable
09 Dec 2001TucanaNot observable
11 Dec 2001TucanaNot observable
13 Dec 2001TucanaNot observable
15 Dec 2001IndusNot observable
17 Dec 2001IndusNot observable

A more detailed table of C/2000 WM1 (LINEAR)'s position on each night is available here. A diagram of the orbit of C/2000 WM1 (LINEAR) is available here.

Finder chart

The chart below shows the path of C/2000 WM1 (LINEAR) 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/2000 WM1 (LINEAR) is currently available.

The comet's position on 28 November 2001 will be:

Object Right Ascension Declination Constellation Magnitude
Comet C/2000 WM1 (LINEAR) 02h52m10s 36°11'S Fornax 4.4

The coordinates are given in J2000.0.

The sky on 14 Mar 2025

The sky on 14 March 2025
Sunrise
06:55
Sunset
18:49
Twilight ends
20:23
Twilight begins
05:21

14-day old moon
Waning Gibbous

99%

14 days old

Planets
Rise Culm. Set
Mercury 07:15 13:42 20:10
Venus 06:44 13:27 20:09
Moon 18:25 00:49 07:01
Mars 12:49 20:35 04:21
Jupiter 10:30 18:00 01:31
Saturn 07:02 12:47 18:32
All times shown in EDT.

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 23 Feb 2025.

Image credit

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

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Cambridge

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Longitude:
Timezone:

42.38°N
71.11°W
EDT

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