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Sky-Tonight.com / Nebulae and Deep-Sky Objects / NGC6540
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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

NGC6540 Position and Visibility Tonight

NGC6540

Where is NGC6540 right now?

NGC6540 is located in the constellation Sagittarius. It is currently below the horizon and is not visible from your location.
Twilight begins at 18:57 local time. At that moment, NGC6540 will be 25° above the horizon toward the south.

NGC6540 visibility on 2026-08-18

NGC6540 Visible from sunset until early morning

NGC6540 rise and set timetable

TimeElevation
Moonrise, 21% illuminated 09:49-59°
NGC6540 rise15:03
Sunset17:5521°
Civil sunset18:2423°
Twilight start18:5725°
NGC6540 transit19:2725°
Astronomical observing session begins19:3225°
Moonset20:2623°
NGC6540 set23:52
Astronomical observing session ends02:51-32°

Track NGC6540 Position Throughout the Night

← 18 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe NGC6540 changing position in the night sky.

Finder Chart for NGC6540

Double-click to unlock the map.
Object nameNGC6540
Field of view
Limiting magnitude
NGC6540 coordinates18.10221, -27.76281
Center coordinates18.10221, -27.76281

NGC6540 Passage Through Night

Double-click to unlock the map.

Current position of NGC6540

Time07:56
Latitude37.3541
Longitude-121.955
Elevation-79°
Azimuth33°
Here you can see the current position of NGC6540 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 NGC6540


NGC6540 will remain visible until December 2, when it moves too close to the Sun and temporarily disappears from the night sky.
Time
DateTue, 18 August 2026
Twilight start19:28
Twilight end02:44
Twilight duration7h 17m
Rise14:59
Set23:48
Elevation at transit25°
Transit time19:23
Equatorial coordinatesRA: 18h 06m 07s", Dec: -27° 45' 46s
Magnitude-
ConstellationSagittarius
The graph illustrates the annual visibility pattern of NGC6540, 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 NGC6540

Coordinates and Visibility

Right Ascension18.10221°
Declination-27.76281°
Magnitude
ConstellationSagittarius
Elevation-78.8°
Azimuth32.8°

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.