A star that never sets from an observer's location. For example, from latitude 50N all stars with a declination greater than 40N will be circumpolar.

The term circumpolar applies in general to all objects that never set from an observer's location. For example, deep sky objects, comets etc.

Glossary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


Sky Highlights - June 2017

Saturn
Saturn reaches opposition on June 15

The Planets
This Month's Guide

Algol Minima
Algol eclipse dates and times for June

Northern Hemisphere
Evening
Southwest:- Jupiter (mag. -2.2)
Southeast:- Saturn (mag. 0.0)
Midnight
West:- Jupiter
South:- Saturn
Morning
Southwest:- Saturn
Southeast:- Neptune (mag. +7.9)
East:- Venus (mag. -4.3), Uranus (mag. +5.9)

Southern Hemisphere
Evening
North:- Jupiter
East:- Saturn
Midnight
West:- Jupiter
North:- Saturn
Morning
West:- Saturn
Northeast:- Neptune
East:- Venus, Uranus, Mercury (first half of month (mag. -0.4 to -1.2)

Deep Sky

Small telescopes:-
Messier 13 - M13 - Great Hercules Globular Cluster
Messier 92 - M92 - Globular Cluster
Messier 11 - M11 - The Wild Duck Cluster (Open Cluster)
Messier 7 - M7 - The Ptolemy Cluster (Open Cluster)
Messier 6 - M6 - The Butterfly Cluster (Open Cluster)
Messier 4 - M4 - Globular Cluster
Messier 8 - M8 - Lagoon Nebula (Emission Nebula)
Messier 16 - M16 - Eagle Nebula (Emission Nebula with Open Cluster)
Messier 20 - M20 - Trifid Nebula (Emission and Reflection Nebula)

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