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Sky-Tonight.com / Nebulae / M17

Checkmark Nebula (M17) Observation Details

M17 Daily Motion

M17 will reach transit at 14:47. By the time twilight starts at 18:13 it will be at an elevation of 16° degrees and will set at 19:50, before twilight ends.
M17 will become visible in March, 16. After being too close to the Sun to observe, it will reappear in the night sky. Starting from March, 16, M17 can be seen again, providing a good opportunity for observation.

M17 Rise and Set Timetable

	Time	Elevation
M17 transit	14:47	34°
Sunset	17:09	25°
Civil sunset	17:40	21°
Astrosession begin	18:13	16°
M17 Set	19:50
Astrosession end	06:22	-37°
M17 Rise	09:40

Track M17 Position Throughout the Night

Time
Altitude
Azimuth

Shift the map to change the time and observe M17 changing position in the night sky.

M17 - Omega Nebula

The Omega Nebula (M17), also known as the Swan Nebula, is an emission nebula located in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745 and later included in Messier's catalog in 1764. The nebula is a region of active star formation.

M17 spans about 15 light-years across and is illuminated by a group of young, massive stars. The nebula is approximately 5,000 light-years away from Earth and has an apparent magnitude of 6.0, making it visible with binoculars or a small telescope.

M17 Image Gallery

DSS Blue

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

DSS Red

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

M17 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

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 M17

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Object name	M17
Field of view
Limiting magnitude
M17 coordinates	18.34642, -16.17153
Center coordinates	18.34642, -16.17153

M17 Passage Through Night

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Current position of M17

Time	10:46
Latitude	39.9625
Longitude	-83.0061
M17 elevation	11°
M17 Azimuth	-122°

Here you can see the current position of the M17 on the map, as well as its positions for rise and set. This tool allows you to track the M17's movement throughout the night, providing you with accurate and up-to-date information.

Annual motion of M17

Date	Fri, 22 November 2024
Twighlight start	18:42
Twighlight end	05:44
Twighlight duration	11h 2m
Rise	09:40
Set	19:46
Elevation at transit	34°
Transit time	14:43
Equatorial coordinate	RA: 18h 20m 47s, Dec: -16° 10' 17"
Magnitude	7
Constellation	Sagittarius

The graph illustrates the annual visibility pattern of a M17, 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 M17 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.

Data Credits

The nebulae information on this page is sourced from the OpenNGC project, developed by Matteo Verga. OpenNGC provides detailed data on the NGC catalog, which is a valuable resource for exploring deep-sky objects such as nebulae.

For more details or to contribute to OpenNGC, visit the official GitHub repository: OpenNGC on GitHub.

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