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

Messier 10 is well placed

Dominic Ford, Editor
From the Deep Sky feed

Objects: M10
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The globular cluster M10 (NGC 6254; mag 6.6) in Ophiuchus will be well placed in the evening sky in coming weeks. On 5 June 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 21:03 (PDT), 25° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:48, 53° above your southern horizon. It will be lost to dawn twilight at around 04:29, 26° above your south-western horizon.

At a declination of 4°05'S, it is visible across much of the world; it can be seen at latitudes between 65°N and 74°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 6.6, M10 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 M10 is as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
M10 16h57m00s 4°05'S Ophiuchus 6.6 0'00"

The coordinates above are given in J2000.0.

The sky on 5 Jun 2020

The sky on 5 June 2020
Twilight ends
Twilight begins

14-day old moon
Waning Gibbous


14 days old

Rise Culm. Set
Mercury 07:16 14:28 21:39
Venus 05:28 12:32 19:35
Moon 18:57 00:18 05:35
Mars 01:19 07:01 12:43
Jupiter 22:38 03:44 08:49
Saturn 22:56 04:04 09:13
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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