The Dumbbell Nebula or M27 is a showpiece object that's a popular visual and imaging target for amateur astronomers. It's arguably the finest planetary nebula in the night sky and was the first of its type to be discovered. The name derives from its resemblance to a dumbbell shape, but it has also been compared to an apple core and an hourglass figure. With a mag. of +7.4, M27 is the second brightest planetary nebula in the sky. Only the Helix Nebula (NGC 7293) in Aquarius is brighter. However, the Dumbbell Nebula has a higher surface brightness and therefore the easier of the two targets to spot.

M27 The Dumbbell Nebula (credit:- ESO)

Finder Chart for M27 (credit:- freestarcharts)

Finder Chart for M27 - pdf format (credit:- freestarcharts)

M27 is found in the constellation of Vulpecula. It's visible in binoculars, appearing as a small oblong shaped patch of light. With 15x70 models it appears much larger and brighter with a distinct central section surrounded by fainter outer regions. An 80mm (3.1-inch) telescope will show the famous hourglass shape, especially when using averted vision. With larger telescopes, M27 displays more intricate surface details. It's a wonderful sight when viewed through 200mm (8-inch) scopes and as with many objects of this type a nebula filter often enhances the view.

M27 was discovered by Charles Messier on July 12, 1764. It's located 1,360 light-years from Earth and has an apparent diameter of 8.0 x 5.6 arc minutes.

M27 Data Table

Messier27
NGC6853
NameDumbbell Nebula
Object TypePlanetary Nebula
ConstellationVulpecula
Distance (light-years)1,360
Apparent Mag.+7.4
RA (J2000)19h 59m 36s
DEC (J2000)+22d 43m 17s
Apparent Size (arc mins)8.0 x 5.6
Radius (light-years)1.44

Sky Highlights - July 2017

The Planets
This Month's Guide

Algol Minima
Algol eclipse dates and times for July

Meteor Shower
Southern Delta Aquariids (Aquarids) meteor shower peaks on July 29

Northern Hemisphere
Evening
West:- Mercury (mag. -0.5 to +0.3) (second half of month)
Southwest:- Jupiter (mag. -2.0)
South:- Saturn (mag. +0.2)
Midnight
West:- Jupiter
South:- Saturn
East:- Neptune (mag. +7.8)
Morning
Southwest:- Saturn
South:- Neptune
Southeast:- Uranus (mag. +5.8)
East:- Venus (mag. -4.1)

Southern Hemisphere
Evening
West:- Mercury (second half of month)
Northwest:- Jupiter
East:- Saturn
Midnight
West:- Jupiter
North:- Saturn
East:- Neptune
Morning
West:- Saturn
North:- Neptune
Northeast:- Venus, Uranus

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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