The Ptolemy cluster (M7, NGC 6475; mag 4.1) in Scorpius 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 34°47'S, it is easiest to see from the southern hemisphere but cannot be seen from latitudes much north of 35°N.
From San Diego, it will be visible between 22:46 and 02:52. It will become accessible around 22:46, when it rises to an altitude of 16° above your south-eastern horizon. It will reach its highest point in the sky at 00:49, 22° above your southern horizon. It will become inaccessible around 02:52 when it sinks below 16° above your south-western horizon.
At magnitude 3.3, M7 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 M7 is as follows:
|Object||Right Ascension||Declination||Constellation||Magnitude||Angular Size|
The coordinates above are given in J2000.0.
|The sky on 20 June 2023|
2 days old
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.
© Digitised Sky Survey (DSS); Second Palomar Observatory Sky Survey (POSS-II)