Dominic Ford, Editor
From the Deep Sky feed
The open star cluster IC 4665 in Ophiuchus will be well placed for observation. It will reach its highest point in the sky at around midnight local time.
At a declination of +05°38', it is visible across much of the world; it can be seen at latitudes between 75°N and 64°S.
From Cambridge, it will be visible all night. It will become visible at around 21:48 (EST) as the dusk sky fades, 37° above your south-eastern horizon. It will be lost to dawn twilight at around 03:35, 36° above your south-western horizon.
At magnitude 4.2, IC4665 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 IC4665 is as follows:
|Object||Right Ascension||Declination||Constellation||Magnitude||Angular Size|
The coordinates above are given in J2000.0.
|The sky on 19 June 2018|
6 days old
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.
© Digitised Sky Survey (DSS); Second Palomar Observatory Sky Survey (POSS-II)