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Sky-Tonight.com / Nebulae and Deep-Sky Objects / M3
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Observation Settings

Or select it on the map:
This Earth map lets you select the observer’s location used to calculate the bearing and elevation of celestial objects. The selected point determines how the sky, rise and set times, and object positions are shown.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

M3 Position and Visibility Tonight

M3

Where is M3 right now?

M3 is located in the constellation Canes Venatici. It is currently below the horizon and is not visible from your location.
Twilight begins at 18:53 local time. At that moment, M3 will be 39° above the horizon toward the west.

M3 visibility on 2026-08-22

M3 Visible from sunset until early morning

M3 rise and set timetable

TimeElevation
Moonrise, 58.6% illuminated 13:5275°
M3 transit14:4881°
Sunset17:5051°
Civil sunset18:1945°
Twilight start18:5139°
Astronomical observing session begins19:2632°
M3 set22:24
Moonset22:59-5°
Astronomical observing session ends02:55-24°
M3 rise07:08

Track M3 Position Throughout the Night

← 22 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe M3 changing position in the night sky.

M3 - Globular Cluster

M3 is a globular cluster located in the constellation Canes Venatici. It was discovered by Charles Messier in 1764. M3 is one of the most outstanding globular clusters, notable for its large number of variable stars.

Spanning about 180 light-years across, M3 contains around 500,000 stars. It is approximately 33,900 light-years away from Earth and has an apparent magnitude of 6.2, making it visible with binoculars or a small telescope. The cluster is best observed in the northern hemisphere during the spring months.

M3 — Image Gallery

DSS Blue

M3 — blue-filter image
Blue images highlight younger, hotter stars that emit strongly at blue wavelengths.

DSS Red

M3 — red-filter image
Red images reveal older, cooler stars and emission nebulae glowing strongly in hydrogen-alpha light.

DSS Near-Infrared

M3 — near-infrared image
Near-infrared images penetrate dust that obscures visible light and reveal hidden structures.

DSS Composite Image

M3 — 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.

Finder Chart for M3

Double-click to unlock the map.
Object nameM3
Field of view
Limiting magnitude
M3 coordinates13.70312, 28.37544
Center coordinates13.70312, 28.37544

M3 Passage Through Night

Double-click to unlock the map.

Current position of M3

Time03:34
Latitude37.3541
Longitude-121.955
Elevation-23°
Azimuth11°
Here you can see the current position of M3 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.

Annual motion of M3


M3 will remain visible until September 11, when it moves too close to the Sun and temporarily disappears from the night sky.
Time
DateSat, 22 August 2026
Twilight start19:21
Twilight end02:49
Twilight duration7h 28m
Rise07:08
Set22:20
Elevation at transit81°
Transit time14:44
Equatorial coordinatesRA: 13h 42m 11s", Dec: 28° 22' 31s
Magnitude6
ConstellationCanes Venatici
The graph illustrates the annual visibility pattern of M3, 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 view detailed visibility information in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of M3

Coordinates and Visibility

Right Ascension13.70312°
Declination28.37544°
Magnitude6.39
ConstellationCanes Venatici
Elevation-23.5°
Azimuth10.5°

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.