NGC 6940 - Open Cluster in Vulpecula
NGC 6940 is a Open Cluster in the Vulpecula constellation. NGC 6940 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere.
See also NGC 6940 rise and set times.
Given its visual magnitude of 6.3, NGC 6940 is easily visible with the help of a small binocular.
Photometric information of NGC 6940
The following table lists the magnitude of NGC 6940 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 of NGC 6940The following table reports NGC 6940 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6940 is a visual representation of it.
Digitized Sky Survey image of NGC 6940
The image below is a photograph of NGC 6940 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 0.36x0.36 degrees (21.6x21.6 arcmins).
Celestial coordinates and finder chart of NGC 6940
Celestial coordinates for the J2000 equinox of NGC 6940 are provided in the following table:
The simplified sky charts below show the position of NGC 6940 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.
Rise ans set times of NGC 6940 from your location
Today's NGC 6940 - Open Cluster in Vulpecula rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):