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Sky-Tonight.com / Nebulae and Deep-Sky Objects / M10

M10 Position and Visibility Tonight

Where is M10 right now?

M10 is located in the constellation Ophiuchus. Although M10 is currently 43° above the horizon, it is not visible because it is daytime.
Twilight begins at 18:56 local time. At that moment, M10 will be 47° above the horizon toward the south-west.

M10 visibility on 2026-08-19

M10 Visible from sunset until early morning

M10 rise and set timetable

	Time	Elevation
Moonrise, 29.9% illuminated	10:53	-19°
M10 rise	12:28
Sunset	17:54	48°
M10 transit	18:15	49°
Civil sunset	18:23	49°
Twilight start	18:56	47°
Astronomical observing session begins	19:31	45°
Moonset	20:56	34°
M10 set	00:01
Astronomical observing session ends	02:52	-33°

Track M10 Position Throughout the Night

← 19 August 2026 →

Time
Altitude
Azimuth

Shift the map to change the time and observe M10 changing position in the night sky.

M10 - Globular Cluster

M10 is a globular cluster located in the constellation Ophiuchus. It was discovered by Charles Messier in 1764. This cluster is moderately concentrated with a rich population of stars.

M10 spans about 83 light-years across and contains tens of thousands of stars. The cluster is approximately 14,300 light-years away from Earth and has an apparent magnitude of 6.6, making it visible with binoculars or a small telescope.

M10 — Image Gallery

DSS Blue

Blue images highlight younger, hotter stars that emit strongly at blue wavelengths.

DSS Red

Red images reveal older, cooler stars and emission nebulae glowing strongly in hydrogen-alpha light.

DSS Near-Infrared

Near-infrared images penetrate dust that obscures visible light and reveal hidden structures.

DSS Composite 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 M10

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Object name	M10
Field of view
Limiting magnitude
M10 coordinates	16.9525, -4.09933
Center coordinates	16.9525, -4.09933

M10 Passage Through Night

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Current position of M10

Time	16:40
Latitude	37.3541
Longitude	-121.955
Elevation	43°
Azimuth	147°

Here you can see the current position of M10 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 M10

M10 will remain visible until October 19, when it moves too close to the Sun and temporarily disappears from the night sky.

Date	Thu, 20 August 2026
Twilight start	19:28
Twilight end	02:51
Twilight duration	7h 22m
Rise	12:24
Set	23:57
Elevation at transit	49°
Transit time	18:11
Equatorial coordinates	RA: 16h 57m 09s", Dec: -4° 05' 57s
Magnitude	5
Constellation	Ophiuchus

The graph illustrates the annual visibility pattern of M10, 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 M10

Coordinates and Visibility

Right Ascension	16.9525°
Declination	-4.09933°
Magnitude	4.98
Constellation	Ophiuchus
Elevation	43°
Azimuth	146.6°

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.

Observation Settings