Globular cluster · Scorpius

M80

Also known as: NGC 6093

mag 7.29′ across

About

M80 is a globular cluster of magnitude 7.2 in Scorpius, about 9′ across.

M80 is in the constellation Scorpius.
Best evenings: around mid-July it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
Where on Earth: it is seen well, at least 10° up, from south of 57° N.

When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.

EyesNot visible to the naked eye.
Binoculars (10×50)A small fuzzy star.
Telescope (6–8 inch)Resolves into a swarm of stars at medium power, with a dense core.

For a dark country sky with no Moon. From a city, faint galaxies and nebulae can disappear completely.

Designations	M80, NGC 6093
Type	Globular cluster
Magnitude	7.2The smaller the number, the brighter.
Apparent size	9′the full Moon is 31′ across
Surface brightness	≈ 20.6 mag/arcsec²Estimate from the magnitude and size, per square arcsecond.
Constellation	Scorpius
Right ascension (J2000)	16h 17m 02.5s
Declination (J2000)	−22° 58′ 30″