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Sky-Tonight.com / Nebulae and Deep-Sky Objects / M30
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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

M30 Position and Visibility Tonight

M30

Where is M30 right now?

M30 is located in the constellation Capricornus. It is currently above the horizon at an altitude of 17° toward the south-east, with an apparent magnitude of 7.10.
Twilight begins at 19:17 local time. At that moment, M30 will be 17° above the horizon toward the south-east.

M30 visibility on 2026-08-31

M30 Visible from sunset until early morning

M30 rise and set timetable

TimeElevation
M30 rise17:27
Sunset17:382°
Civil sunset18:066°
Twilight start18:3711°
Moonrise, 91.3% illuminated 18:4813°
Astronomical observing session begins19:1016°
M30 transit22:1029°
M30 set02:53
Astronomical observing session ends03:06-2°
Moonset08:20-63°

Track M30 Position Throughout the Night

← 31 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe M30 changing position in the night sky.

M30 - Globular Cluster

M30 is a globular cluster located in the constellation Capricornus. It was discovered by Charles Messier in 1764. This cluster is known for its collapsed core and high concentration of stars.

M30 spans about 93 light-years across and contains tens of thousands of stars. The cluster is approximately 27,100 light-years away from Earth and has an apparent magnitude of 7.2, making it visible with binoculars or a small telescope.

M30 — Image Gallery

DSS Blue

M30 — blue-filter image
Blue images highlight younger, hotter stars that emit strongly at blue wavelengths.

DSS Red

M30 — red-filter image
Red images reveal older, cooler stars and emission nebulae glowing strongly in hydrogen-alpha light.

DSS Near-Infrared

M30 — near-infrared image
Near-infrared images penetrate dust that obscures visible light and reveal hidden structures.

DSS Composite Image

M30 — 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 M30

Double-click to unlock the map.
Object nameM30
Field of view
Limiting magnitude
M30 coordinates21.67278, -23.17908
Center coordinates21.67278, -23.17908

M30 Passage Through Night

Double-click to unlock the map.

Current position of M30

Time19:17
Latitude37.3541
Longitude-121.955
Elevation17°
Azimuth139°
Here you can see the current position of M30 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 M30


M30 will remain visible until January 23, when it moves too close to the Sun and temporarily disappears from the night sky.
Time
DateTue, 1 September 2026
Twilight start19:08
Twilight end03:04
Twilight duration8h 56m
Rise17:23
Set02:49
Elevation at transit29°
Transit time22:06
Equatorial coordinatesRA: 21h 40m 22s", Dec: -23° 10' 44s
Magnitude7
ConstellationCapricornus
The graph illustrates the annual visibility pattern of M30, 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 M30

Coordinates and Visibility

Right Ascension21.67278°
Declination-23.17908°
Magnitude7.10
ConstellationCapricornus
Elevation17°
Azimuth138.7°

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.