NGC 5138 - Open Cluster in Centaurus
NGC 5138 is a Open Cluster in the Centaurus constellation. NGC 5138 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its visual magnitude of 5.33, NGC 5138 is barely visible to the naked eye, easily visible with the help of a small binocular.
The image below is a photograph of NGC 5138 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 0.5000x0.5000 degrees (30.00x30.00 arcmins).
Celestial Coordinates
Apparent
J2000
Finder Chart
The simplified sky charts below show the position of NGC 5138 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.
Photometric Information
The following table lists the magnitude of NGC 5138 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).
For more information about photometry in astronomy, check the photometric system article on Wikipedia.
Apparent Size
The following table reports NGC 5138 apparent angular size. The green area displayed on top of the DSS2 image of NGC 5138 is a visual representation of it.Rise and Set Times
Location: Greenwich, UK
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
NGC 5138 - Open Cluster in Centaurus is currently not visible from Greenwich, UK