NGC 6840 - Open Cluster in Aquila
NGC 6840 is a Open Cluster in the Aquila constellation. NGC 6840 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 6840 is above the horizon from Greenwich, United Kingdom . Its current altitude is 30° above the horizon. See also rise and set times.
Apparent size of NGC 6840
The following table reports NGC 6840 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6840 is a visual representation of it.Digitized Sky Survey image of NGC 6840
The image below is a photograph of NGC 6840 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 6840
Celestial coordinates for the J2000 equinox of NGC 6840 are provided in the following table:
The simplified sky charts below show the position of NGC 6840 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 6840 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Today's NGC 6840 - Open Cluster in Aquila rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):