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🌎  Greenwich, United Kingdom [change]

NGC 6633 - Open Cluster in Ophiuchus

NGC 6633 is a Open Cluster in the Ophiuchus constellation. NGC 6633 is situated close to the celestial equator and, as such, it is at least partly visible from both hemispheres in certain times of the year.

NGC 6633
Open Cluster
Ophiuchus
  • NGC 6633 is below the horizon from Greenwich, United Kingdom [change]. See also rise and set times.
  • Given its visual magnitude of 4.6, NGC 6633 is barely visible to the naked eye, easily visible with the help of a small binocular.
Available Resources for NGC 6633 - Open Cluster in Ophiuchus

Photometric information of NGC 6633

The following table lists the magnitude of NGC 6633 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).

5.01
4.6

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

Apparent size of NGC 6633

The following table reports NGC 6633 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6633 is a visual representation of it.
12 arcmin
12 arcmin

Digitized Sky Survey image of NGC 6633

The image below is a photograph of NGC 6633 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 0.4x0.4 degrees (24x24 arcmins).

Image of NGC 6633 - Open Cluster in Ophiuchus star
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DSS2 image of NGC 6633 in the Red band. The green region on the image is a representation of the major (12 arcmin) and minor (12 arcmin) axes of the object's apparent size.

Celestial coordinates and finder chart of NGC 6633

Celestial coordinates for the J2000 equinox of NGC 6633 are provided in the following table:

18h 27m 15s
+06° 30’ 29”

The simplified sky charts below show the position of NGC 6633 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 6633 - Open Cluster in Ophiuchus star
Simplified finder chart for NGC 6633 - Open Cluster in Ophiuchus.

Finder chart NGC 6633 - Open Cluster in Ophiuchus star
Simplified finder chart for NGC 6633 - Open Cluster in Ophiuchus.

Rise ans set times of NGC 6633 from your location

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

Today's NGC 6633 - Open Cluster in Ophiuchus rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 83.5°
Max altitude: 45.0°
Azimuth: 276.5°
NGC 6633 - Open Cluster in Ophiuchus is below the horizon from Greenwich, United Kingdom