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Sky-Tonight.com / Nebulae and Deep-Sky Objects / Hercules Globular Cluster (M13)

Hercules Globular Cluster (M13) Position and Visibility Tonight

M13

Where is Hercules Globular Cluster (M13) right now?

Hercules Globular Cluster (M13) is located in the constellation Hercules. It is currently above the horizon at an altitude of 27° toward the north-west, with an apparent magnitude of 5.80.
Twilight begins at 19:15 local time. At that moment, Hercules Globular Cluster (M13) will be 27° above the horizon toward the north-west.
Open the interactive guide to Hercules Globular Cluster (M13)’s position and path tonight

Hercules Globular Cluster (M13) tonight

Hercules Globular Cluster (M13) tonight

Hercules Globular Cluster (M13) visibility on 2026-10-22

Hercules Globular Cluster (M13) Visible from sunset until before midnight

Hercules Globular Cluster (M13) rise and set timetable

TimeElevation
Hercules Globular Cluster (M13) transit13:4789°
Moonrise, 71.9% illuminated 14:0187°
Sunset16:2159°
Civil sunset16:4954°
Twilight start (−12°)17:1948°
Astronomical observing session begins17:4942°
Hercules Globular Cluster (M13) set22:03
Moonset01:36-16°
Astronomical observing session ends03:55-10°
Hercules Globular Cluster (M13) rise05:28

Track Hercules Globular Cluster (M13) position throughout the night

← 22 October 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe Hercules Globular Cluster (M13) changing position in the night sky.

M13 - Great Hercules Cluster

The Great Hercules Cluster (M13) is a globular cluster located in the constellation Hercules. It was discovered by Edmond Halley in 1714 and included in Messier's catalog in 1764. M13 is one of the most prominent and well-known globular clusters in the northern hemisphere.

M13 spans about 145 light-years across and contains several hundred thousand stars. The cluster is approximately 22,200 light-years away from Earth and has an apparent magnitude of 5.8, making it visible to the naked eye under dark skies and easily seen with binoculars or a small telescope.

M13 — Image Gallery

DSS Blue

M13 — blue-filter image
Blue images highlight younger, hotter stars that emit strongly at blue wavelengths.

DSS Red

M13 — red-filter image
Red images reveal older, cooler stars and emission nebulae glowing strongly in hydrogen-alpha light.

DSS Near-Infrared

M13 — near-infrared image
Near-infrared images penetrate dust that obscures visible light and reveal hidden structures.

DSS Composite Image

M13 — composite color image
DSS color images combine blue, red and often near-infrared exposures into a composite view.

The images come from the Digitized Sky Survey 2 (DSS2), produced at the Space Telescope Science Institute (STScI) under contract with NASA, using data from UK Science and Technology Facilities Council (STFC), European Southern Observatory (ESO), National Geographic Society-Palomar Observatory Sky Survey (POSS II).

Special thanks to National Optical Astronomy Observatory (NOAO), Royal Observatory, Edinburgh, California Institute of Technology for their significant contributions.

Open the step-by-step guide View on Sky Map

Hercules Globular Cluster (M13) Passage Through Night

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Current position of Hercules Globular Cluster (M13)

Time19:15
Latitude37.3541
Longitude-121.955
Elevation27°
Azimuth297°
Here you can see the current position of Hercules Globular Cluster (M13) on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.

When Is Hercules Globular Cluster (M13) Visible Throughout the Year?

Hercules Globular Cluster (M13) will remain visible until November 23, when it moves too close to the Sun and temporarily disappears from the night sky. Time
DateFri, 23 October 2026
Astronomical observing session begins17:48
Astronomical observing session ends03:53
Astronomical observing duration10h 6m
Rise05:28
Set22:00
Elevation at transit89°
Transit time13:44
Equatorial coordinatesRA: 16h 41m 41s", Dec: 36° 27' 40s
Magnitude6
ConstellationHercules
The graph illustrates the annual visibility pattern of Hercules Globular Cluster (M13), including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also see when Hercules Globular Cluster (M13) is visible throughout the year in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of M13

Coordinates and Visibility

Right Ascension16h 41m 42s
Declination36° 27′ 41″
Magnitude5.8
ConstellationHercules
Elevation26.6°
Azimuth297°

Data Credits

The deep-sky information on this page comes from the OpenNGC project developed by Matteo Verga. OpenNGC provides detailed catalog data for nebulae, galaxies, clusters and other deep-sky objects.

For details or contributions, visit the official repository: OpenNGC GitHub.