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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:47  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny  • Daytime • What's Visible Now?

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Other deep sky objects in Sagittarius
All Constellations »  Sagittarius »  Deep Sky Objects » 

NGC 6558 - Globular Cluster in Sagittarius

Altitude: 6.7°   Azimuth: 176.5°   Direction: South

NGC 6558 is a Globular Cluster in the Sagittarius constellation. NGC 6558 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere.

NGC 6558
Globular Cluster
Sagittarius

NGC 6558 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 6.7°
Azimuth: 176.5°
Direction: South

See also NGC 6558 rise and set times.

Given its visual magnitude of 11.29, NGC 6558 is visible with the help of a telescope having an aperture of 6 inches (150mm) or more.

Available Resources for NGC 6558 - Globular Cluster in Sagittarius

Photometric information of NGC 6558

The following table lists the magnitude of NGC 6558 in different bands of the electomagnetic spectrum (when available), from the B band (445nm wavelength, corresponding to the Blue color), to the V band ( 551nm wavelength, corresponding to Green/Yellow color), to the J, H, K bands (corresponding to 1220nm, 1630nm, 2190nm wavelengths respectively, which are colors not visible to the human eye).

12.39
11.29

For more information about photometry in astronomy, check the photometric system article on Wikipedia.

Apparent size of NGC 6558

The following table reports NGC 6558 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6558 is a visual representation of it.
5.4 arcmin
5.4 arcmin

Digitized Sky Survey image of NGC 6558

The image below is a photograph of NGC 6558 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins).

Image of NGC 6558 - Globular Cluster in Sagittarius star
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DSS2 image of NGC 6558 in the Red band. The green region on the image is a representation of the major (5.4 arcmin) and minor (5.4 arcmin) axes of the object's apparent size.

Celestial coordinates and finder chart of NGC 6558

Celestial coordinates for the J2000 equinox of NGC 6558 are provided in the following table:

18h 10m 18s
-31° 45’ 48”

The simplified sky charts below show the position of NGC 6558 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

Finder chart NGC 6558 - Globular Cluster in Sagittarius star
Simplified finder chart for NGC 6558 - Globular Cluster in Sagittarius.

Finder chart NGC 6558 - Globular Cluster in Sagittarius star
Simplified finder chart for NGC 6558 - Globular Cluster in Sagittarius.

Rise ans set times of NGC 6558 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's NGC 6558 - Globular Cluster in Sagittarius rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 121.8°
Max altitude: 6.8°
Azimuth: 238.2°