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Sky-Tonight.com / Nebulae and Deep-Sky Objects / M54
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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

M54 Position and Visibility Tonight

M54

Where is M54 right now?

M54 is located in the constellation Sagittarius. It is currently below the horizon and is not visible from your location.
Twilight begins at 18:57 local time. At that moment, M54 will be 20° above the horizon toward the south-east.

M54 visibility on 2026-08-18

M54 Visible from sunset until early morning

M54 rise and set timetable

TimeElevation
Moonrise, 21% illuminated 09:49-70°
M54 rise16:03
Sunset17:5515°
Civil sunset18:2417°
Twilight start18:5720°
Astronomical observing session begins19:3221°
M54 transit20:1622°
Moonset20:2622°
M54 set00:29
Astronomical observing session ends02:51-24°

Track M54 Position Throughout the Night

← 18 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe M54 changing position in the night sky.

M54 - Globular Cluster

M54 is a globular cluster located in the constellation Sagittarius. It was discovered by Charles Messier in 1778. The cluster contains a rich population of old stars and is one of the most massive globular clusters known.

M54 spans about 150 light-years across and contains around 1 million stars. The cluster is approximately 87,000 light-years away from Earth and has an apparent magnitude of 7.6, making it visible with binoculars or a small telescope.

M54 — Image Gallery

DSS Blue

M54 — blue-filter image
Blue images highlight younger, hotter stars that emit strongly at blue wavelengths.

DSS Red

M54 — red-filter image
Red images reveal older, cooler stars and emission nebulae glowing strongly in hydrogen-alpha light.

DSS Near-Infrared

M54 — near-infrared image
Near-infrared images penetrate dust that obscures visible light and reveal hidden structures.

DSS Composite Image

M54 — 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 M54

Double-click to unlock the map.
Object nameM54
Field of view
Limiting magnitude
M54 coordinates18.91758, -30.4785
Center coordinates18.91758, -30.4785

M54 Passage Through Night

Double-click to unlock the map.

Current position of M54

Time09:37
Latitude37.3541
Longitude-121.955
Elevation-72°
Azimuth73°
Here you can see the current position of M54 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 M54


M54 will remain visible until December 11, when it moves too close to the Sun and temporarily disappears from the night sky.
Time
DateTue, 18 August 2026
Twilight start19:28
Twilight end02:44
Twilight duration7h 17m
Rise16:00
Set00:25
Elevation at transit22°
Transit time20:12
Equatorial coordinatesRA: 18h 55m 03s", Dec: -30° 28' 42s
Magnitude8
ConstellationSagittarius
The graph illustrates the annual visibility pattern of M54, 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 M54

Coordinates and Visibility

Right Ascension18.91758°
Declination-30.4785°
Magnitude7.70
ConstellationSagittarius
Elevation-72.2°
Azimuth73.1°

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.