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Sky-Tonight.com / Nebulae and Deep-Sky Objects / Blue Planetary (NGC3918)
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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

Blue Planetary (NGC3918) Position and Visibility Tonight

NGC3918

Where is NGC3918 right now?

NGC3918 is located in the constellation Centaurus. It is currently below the horizon and is not visible from your location.

NGC3918 visibility on 2026-08-18

NGC3918 is Not visible tonight

NGC3918 rise and set timetable

TimeElevation
NGC3918 is always below the horizon-
Moonrise, 21% illuminated 09:49-14°
NGC3918 transit13:12-5°
Astronomical observing session begins19:32-33°
Moonset20:26-40°
Astronomical observing session ends02:51-64°

Track NGC3918 Position Throughout the Night

← 18 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe NGC3918 changing position in the night sky.

Finder Chart for NGC3918

Double-click to unlock the map.
Object nameNGC3918
Field of view
Limiting magnitude
NGC3918 coordinates11.83832, -57.18233
Center coordinates11.83832, -57.18233

Blue Planetary (NGC3918) Passage Through Night

Double-click to unlock the map.

Current position of Blue Planetary (NGC3918)

Time06:19
Latitude37.3541
Longitude-121.955
Elevation-38°
Azimuth138°
Here you can see the current position of NGC3918 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 Blue Planetary (NGC3918)


Time
DateTue, 18 August 2026
Twilight start19:28
Twilight end02:44
Twilight duration7h 17m
RiseNGC3918 is always down
SetNGC3918 is always down
Elevation at transit-5°
Transit time13:08
Equatorial coordinatesRA: 11h 50m 17s", Dec: -57° 10' 56s
Magnitude8
ConstellationCentaurus
The graph illustrates the annual visibility pattern of NGC3918, 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 NGC3918

Coordinates and Visibility

Right Ascension11.83832°
Declination-57.18233°
Magnitude8.10
ConstellationCentaurus
Elevation-37.7°
Azimuth138.3°

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.