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M31 is well placed

Dominic Ford, Editor
From the Deep Sky feed

Objects: M31
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The sky at

The Andromeda galaxy (M31; mag 4.4) will be well placed, high in the sky. It will reach its highest point in the sky at around midnight local time.

At a declination of +41°16', it is easiest to see from the northern hemisphere but cannot be seen from latitudes much south of 28°S.

From Cambridge, it will be visible all night. It will become visible around 19:31 (EDT) as the dusk sky fades, 34° above your north-eastern horizon. It will then reach its highest point in the sky at 00:45, 88° above your southern horizon. It will be lost to dawn twilight around 05:39, 37° 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.

At magnitude 3.4, M31 is tricky to make out with the naked eye except from a dark site, but is visible through a pair of binoculars or small telescope.

The position of M31 is as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
M31 00h42m40s +41°16' Andromeda 3.4 190'00"

The coordinates above are given in J2000.0.

The sky on 02 October 2019
Twilight ends
Twilight begins

4-day old moon
Waxing Crescent


4 days old

Rise Culm. Set
Mercury 08:28 13:46 19:04
Venus 07:50 13:24 18:59
Moon 11:17 16:13 21:09
Mars 05:50 11:58 18:06
Jupiter 12:35 17:09 21:43
Saturn 14:25 19:00 23:34
All times shown in EDT.


The circumstances of this event were computed using the DE405 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

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