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

The cluster NGC 6633 is well placed

Dominic Ford, Editor
From the Deep Sky feed

Objects: NGC6633
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The open star cluster NGC 6633 (mag 4.6) in Ophiuchus will be well placed in the evening sky in coming weeks. On 28 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 Fairfield , it is visible all night. It will become visible at around 21:54 (EDT), 37° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:54, 55° above your southern horizon. It will be lost to dawn twilight at around 03:55, 36° above your south-western horizon.

At a declination of 6°30'N, it is visible across much of the world; it can be seen at latitudes between 76°N and 63°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 4.6, NGC6633 is too faint to be seen with the naked eye from any but the very darkest sites, but is visible through a pair of binoculars or small telescope.

The position of NGC6633 is as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
NGC6633 18h27m10s 6°30'N Ophiuchus 4.6 0'00"

The coordinates above are given in J2000.0.

The sky on 28 Jun 2021

The sky on 28 June 2021
Twilight ends
Twilight begins

18-day old moon
Waning Gibbous


18 days old

Rise Culm. Set
Mercury 04:18 11:30 18:43
Venus 07:17 14:41 22:04
Moon 23:19 04:19 09:27
Mars 08:04 15:16 22:29
Jupiter 23:21 04:42 10:04
Saturn 22:28 03:26 08:24
All times shown in EDT.


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)





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