Location settings
VA, US
39°/-77.5°
GMT -4
Waxing20:15 - 05:54
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M15: Rise, Set, Nighttime Path

M15

M15 Daily Motion

M15 will rise at 16:18, reaching 45° when twilight begins at 20:15. It will reach transit at 63° by 22:57 and will set before twilight ends at 05:36.
M15 will be visible until January, 14, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.

M15 Rise and Set Timetable

TimeElevation
M15 Rise16:18
Sunset19:1634°
Civil sunset19:4439°
Astrosession begin20:1545°
M15 transit22:5763°
M15 Set05:36
Astrosession end05:54-3°

M15 Sky Tracker Map

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe M15 changing position in the night sky.

M15 - Pegasus Cluster

The Pegasus Cluster (M15) is a globular cluster located in the constellation Pegasus. It was discovered by Jean-Dominique Maraldi in 1746 and included in Messier's catalog in 1764. M15 is one of the most densely packed globular clusters known.

M15 spans about 175 light-years across and contains over 100,000 stars. The cluster is approximately 33,600 light-years away from Earth and has an apparent magnitude of 6.2, making it visible with binoculars or a small telescope.

M15 Image Gallery

DSS Blue

M15 photo taken with blue filter
These images are valuable for highlighting the presence of younger, hotter stars, which emit more light in the blue wavelengths.

DSS Red

M15 photo taken with red filter
These images are excellent for detecting older, cooler stars, as well as emission nebulae, which glow primarily in the red due to hydrogen alpha emissions.

DSS Near-Infrared

M15 photo taken with Near-Infrared filter
These images can penetrate dust clouds that obscure visible light, revealing structures and objects hidden within.

DSS Composite image

M15 color image
DSS Color images are composite images created by combining the blue, red, and often near-infrared images to produce a full-color representation.

The photos are taken from the Digitized Sky Survey 2 (DSS2), which was produced at the Space Telescope Science Institute (STScI) under NASA contract, using data from the UK Science and Technology Facilities Council (STFC), the European Southern Observatory (ESO), and the National Geographic Society-Palomar Observatory Sky Survey (POSS II).

Special thanks to the National Optical Astronomy Observatory (NOAO), the Royal Observatory, Edinburgh, and the California Institute of Technology for their significant contributions.

Finder Chart for M15

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Object nameM15
Field of view
Limiting magnitude
M15 coordinates21.49955, 12.16683
Center coordinates21.49955, 12.16683

M15 Passage Through Night

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Current position of M15

Time19:37
Latitude39.0469
Longitude-77.4903
M15 elevation38°
M15 Azimuth-107°
Here you can see the current position of the M15 on the map, as well as its positions for rise and set. This tool allows you to track the M15's movement throughout the night, providing you with accurate and up-to-date information.

Annual motion of M15

Time
DateMon, 16 September 2024
Twighlight start20:43
Twighlight end05:16
Twighlight duration9h 33m
Rise16:14
Set05:32
Elevation at transit63°
Transit time22:53
Equatorial coordinateRA: 21h 29m 58s, Dec: 12° 10' 00"
Magnitude6
ConstellationPegasus
The graph illustrates the annual visibility pattern of a M15, providing a comprehensive overview of its daily appearances and transit times throughout the year.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the M15 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.