Your Guide to the Solar System and the Night Sky
Content Menu
Major Objects Bright Comets Asteroids Near Earth Objects Space Probes Constellations & Deep Sky Objects Supernovae Solar Eclipses
3D Solar System Viewer Online Planetarium
Set Observing Location What is Visible Now Tonight's Observing Guide Moon Calendar Create Quick Access Page
Articles Donate
About
Feedback
Objects
Major Objects Bright Comets Asteroids Near Earth Objects Space Probes Constellations & Deep Sky Objects Supernovae
Charts
3D Solar System Viewer Online Planetarium
Plan Observations
Set Observing Location What is Visible Now Tonight's Observing Guide Moon Calendar Create Quick Access Page
Solar Eclipses
More
Articles Donate
About
Feedback
✖ This site is free and ad-free thanks to the support of our users. If you can, please consider a donation.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:04  
clear_day Transit: 12:47  
SunsetSet: 18:30 south
sunny  • Daytime • What's Visible Now

Support us

If you like TheSkyLive.com please consider a donation to support this project. Thank you!

In Evidence

Best Places to See the 2024 American Eclipse Based on Historical Weather Data
Using historical cloud coverage data we suggest the locations that could provide the better chances to have clear skies on April 8, 2024 to observe the eclipse. Read more...

Other deep sky objects in Hercules
All Constellations »  Hercules »  Deep Sky Objects » 

Messier 13 (Hercules Globular Cluster) - Globular Cluster in Hercules

Altitude: 31.2°   Azimuth: 69.2°   Direction: East-North-East

Messier 13 is a Globular Cluster in the Hercules constellation. Messier 13 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere.

Messier 13
Globular Cluster
Hercules

Messier 13 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 31.2°
Azimuth: 69.2°
Direction: East-North-East

See also Messier 13 rise and set times.

Given its visual magnitude of 5.8, Messier 13 is easily visible with the help of a small binocular.

Available Resources for Messier 13 (Hercules Globular Cluster) - Globular Cluster in Hercules

Photometric information of Messier 13

The following table lists the magnitude of Messier 13 in different bands of the electomagnetic spectrum (when available), from the B band (445nm wavelength, corresponding to the Blue color), to the V band ( 551nm wavelength, corresponding to Green/Yellow color), to the J, H, K bands (corresponding to 1220nm, 1630nm, 2190nm wavelengths respectively, which are colors not visible to the human eye).

5.8
4.45
3.94
3.85

For more information about photometry in astronomy, check the photometric system article on Wikipedia.

Apparent size of Messier 13

The following table reports Messier 13 apparent angular size. The green area displayed on top of the DSS2 image of Messier 13 is a visual representation of it.
16.5 arcmin
16.5 arcmin

Digitized Sky Survey image of Messier 13

The image below is a photograph of Messier 13 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.55x0.55 degrees (33x33 arcmins).

Image of Messier 13 (Hercules Globular Cluster) - Globular Cluster in Hercules star
/>
DSS2 image of Messier 13 in the Red band. The green region on the image is a representation of the major (16.5 arcmin) and minor (16.5 arcmin) axes of the object's apparent size.

Celestial coordinates and finder chart of Messier 13

Celestial coordinates for the J2000 equinox of Messier 13 are provided in the following table:

16h 41m 42s
+36° 27’ 40”

The simplified sky charts below show the position of Messier 13 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

Finder chart Messier 13 (Hercules Globular Cluster) - Globular Cluster in Hercules star
Simplified finder chart for Messier 13 (Hercules Globular Cluster) - Globular Cluster in Hercules.

Finder chart Messier 13 (Hercules Globular Cluster) - Globular Cluster in Hercules star
Simplified finder chart for Messier 13 (Hercules Globular Cluster) - Globular Cluster in Hercules.

Rise ans set times of Messier 13 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Messier 13 (Hercules Globular Cluster) - Globular Cluster in Hercules rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 53.5°
Max altitude: 75.0°
Azimuth: 306.5°