NGC 6639 - Open Cluster in Scutum
NGC 6639 is a Open Cluster in the Scutum constellation. NGC 6639 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.
Apparent size of NGC 6639The following table reports NGC 6639 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6639 is a visual representation of it.
Digitized Sky Survey image of NGC 6639
The image below is a photograph of NGC 6639 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).
Celestial coordinates and finder chart of NGC 6639
Celestial coordinates for the J2000 equinox of NGC 6639 are provided in the following table:
The simplified sky charts below show the position of NGC 6639 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.