© Digitised Sky Survey (DSS); Second Palomar Observatory Sky Survey (POSS-II)

The Triangulum Galaxy is well placed

Dominic Ford, Editor
From the Deep Sky feed

Objects: M33
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The Triangulum Galaxy M33 (mag 5.8) will be well placed in the evening sky in coming weeks. On 15 October it will reach its highest point in the sky at around midnight local time, and on subsequent evenings it will culminate four minutes earlier each day.

From San Diego , it is visible all night. It will become visible at around 19:13 (PDT), 21° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:46, 87° above your southern horizon. It will be lost to dawn twilight at around 05:52, 26° above your western horizon.

At a declination of 30°39'N, it is easiest to see from the northern hemisphere but cannot be seen from latitudes much south of 39°S.

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 5.8, M33 is quite faint, and certainly not visible to the naked eye, but can be viewed through a pair of binoculars or small telescope.

The position of M33 is as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
M33 01h33m50s 30°39'N Triangulum 5.8 0'00"

The coordinates above are given in J2000.0.

The sky on 15 Oct 2021

The sky on 15 October 2021
Twilight ends
Twilight begins

9-day old moon
Waxing Gibbous


9 days old

Rise Culm. Set
Mercury 05:57 11:49 17:41
Venus 10:41 15:35 20:29
Moon 16:02 21:27 02:59
Mars 06:40 12:24 18:08
Jupiter 15:25 20:48 02:10
Saturn 14:35 19:46 00:56
All times shown in PDT.


The circumstances of this event were computed using the DE430 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.

Image credit

© Digitised Sky Survey (DSS); Second Palomar Observatory Sky Survey (POSS-II)


San Diego



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