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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. It is currently above the horizon at an altitude of 31° toward the south-west, with an apparent magnitude of 4.98.
Twilight begins at 18:16 local time. At that moment, M10 will be 31° above the horizon toward the south-west.

Open the interactive guide to M10’s position and path tonight

M10 visibility on 2026-10-03

M10 Visible from sunset until before midnight

M10 rise and set timetable

	Time	Elevation
M10 transit	15:18	49°
Sunset	16:47	44°
Civil sunset	17:15	40°
Twilight start (−12°)	17:45	36°
Astronomical observing session begins	18:15	31°
M10 set	21:04
Moonrise, 56.5% illuminated	21:14	-2°
Astronomical observing session ends	03:38	-56°
M10 rise	09:27
Moonset	12:53	37°

Track M10 position throughout the night

← 3 October 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

Open the step-by-step guide Open the full sky map

M10 Passage Through Night

Double-click to unlock the map.

Current position of M10

Time	18:16
Latitude	37.3541
Longitude	-121.955
Elevation	31°
Azimuth	235°

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.

When Is M10 Visible Throughout the Year?

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

Date	Sun, 4 October 2026
Astronomical observing session begins	18:13
Astronomical observing session ends	03:36
Astronomical observing duration	9h 23m
Rise	09:27
Set	21:00
Elevation at transit	49°
Transit time	15:14
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 see when M10 is visible throughout the year in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of M10

Coordinates and Visibility

Right Ascension	16h 57m 09s
Declination	-4° 05′ 58″
Magnitude	4.98
Constellation	Ophiuchus
Elevation	31.4°
Azimuth	235.2°

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