Comet 10P/Tempel passes perihelion

Dominic Ford, Editor
From the Comets feed


Objects: 10P/Tempel

Comet 10P/Tempel will make its closest approach to the Sun on 3 June, at a distance of 1.42 AU.

From Los Angeles on the day of perihelion it will be visible in the dawn sky, rising at 02:09 (PDT) – 3 hours and 32 minutes before the Sun – and reaching an altitude of 27° above the south-eastern horizon before fading from view as dawn breaks at around 04:30.

The events that comprise the 1994 apparition of 10P/Tempel are as follows:

Date Event
03 Jun 1994Comet 10P/Tempel passes perihelion

The table below lists the times when 10P/Tempel will be visible from Los Angeles day-by-day through its apparition:

Date Constellation Comet visibility
13 May 1994AquariusVisible from 04:28 until 04:45
Highest at 04:45, 25° above SE horizon
15 May 1994AquariusVisible from 04:26 until 04:43
Highest at 04:43, 25° above SE horizon
17 May 1994AquariusVisible from 04:23 until 04:41
Highest at 04:41, 25° above SE horizon
19 May 1994AquariusVisible from 04:21 until 04:39
Highest at 04:39, 25° above SE horizon
21 May 1994AquariusVisible from 04:18 until 04:38
Highest at 04:38, 26° above SE horizon
23 May 1994AquariusVisible from 04:15 until 04:36
Highest at 04:36, 26° above SE horizon
25 May 1994AquariusVisible from 04:13 until 04:35
Highest at 04:35, 26° above SE horizon
27 May 1994AquariusVisible from 04:10 until 04:34
Highest at 04:34, 26° above SE horizon
29 May 1994AquariusVisible from 04:08 until 04:33
Highest at 04:33, 27° above SE horizon
31 May 1994AquariusVisible from 04:05 until 04:32
Highest at 04:32, 27° above SE horizon
02 Jun 1994AquariusVisible from 04:02 until 04:31
Highest at 04:31, 27° above SE horizon
04 Jun 1994PiscesVisible from 04:00 until 04:30
Highest at 04:30, 28° above SE horizon
06 Jun 1994PiscesVisible from 03:57 until 04:29
Highest at 04:29, 28° above SE horizon
08 Jun 1994PiscesVisible from 03:54 until 04:29
Highest at 04:29, 28° above SE horizon
10 Jun 1994PiscesVisible from 03:52 until 04:28
Highest at 04:28, 29° above SE horizon
12 Jun 1994PiscesVisible from 03:49 until 04:28
Highest at 04:28, 29° above SE horizon
14 Jun 1994CetusVisible from 03:46 until 04:28
Highest at 04:28, 30° above SE horizon
16 Jun 1994CetusVisible from 03:44 until 04:28
Highest at 04:28, 30° above SE horizon
18 Jun 1994CetusVisible from 03:41 until 04:28
Highest at 04:28, 31° above SE horizon
20 Jun 1994CetusVisible from 03:38 until 04:29
Highest at 04:29, 32° above SE horizon
22 Jun 1994CetusVisible from 03:35 until 04:29
Highest at 04:29, 32° above SE horizon

A more detailed table of 10P/Tempel's position on each night is available here. A diagram of the orbit of 10P/Tempel is available here.

Finder chart

The chart below shows the path of 10P/Tempel 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 10P/Tempel is currently available.

The comet's position at perihelion will be:

Object Right Ascension Declination Constellation Magnitude
Comet 10P/Tempel 23h54m20s 4°32'S Aquarius 9.8

The coordinates are given in J2000.0.

The sky on 27 Sep 2024

The sky on 27 September 2024
Sunrise
06:42
Sunset
18:41
Twilight ends
20:05
Twilight begins
05:18


Waning Crescent

17%

24 days old

Planets
Rise Culm. Set
Mercury 06:31 12:35 18:39
Venus 09:10 14:36 20:02
Moon 01:50 09:14 16:29
Mars 00:10 07:21 14:32
Jupiter 22:38 05:45 12:53
Saturn 17:47 23:28 05:08
All times shown in PDT.

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 16 Sep 2024.

Image credit

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

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