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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
sunny   (Daytime)   What's Visible Now?
All Constellations »  Sagittarius »  Deep Sky Objects » 

NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius

Below the horizon.  Rise: 21:24 | Tran: 0:32 | Set: 3:45
Alt: -58.93°   Az: 307.46°   Direction: North-West

NGC 6816 is a Elliptical/Spiral Galaxy in the Sagittarius constellation. NGC 6816 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its B magnitude of 13.59, NGC 6816 is visible with the help of a telescope having an aperture of 14 inches (350mm) or more.

The image below is a photograph of NGC 6816 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).

Image of NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius star
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DSS2 image of NGC 6816 in the Red band. The green region on the image is a representation of the major (1.72 arcmin) and minor (1.4 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

19h 45m 33s
-28° 20’ 25”
10h 09m 03s
05h 54m 37s

J2000

19h 44m 02s
-28° 24’ 02”

Finder Chart

The simplified sky charts below show the position of NGC 6816 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 6816 - Elliptical/Spiral Galaxy in Sagittarius star
Simplified finder chart for NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius.

Finder chart NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius star
Simplified finder chart for NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius.

Photometric Information

The following table lists the magnitude of NGC 6816 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).

13.59
10
9.33
8.91

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

The surface brightess reported below is an indication of the brightness per unit of angular area of NGC 6816.

23.97 mag/arcsec2

Apparent Size

The following table reports NGC 6816 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6816 is a visual representation of it.
1.72 arcmin
1.4 arcmin
80°

Morphological Classification

NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius is classified as Elliptical/Spiral (E-S0) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius in the Hubble de Vaucouleurs sequence.

NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius
Visualization of the morphological classification of NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius, Elliptical/Spiral (E-S0).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Rise and Set Times

Location: Greenwich, UK
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's NGC 6816 - Elliptical/Spiral Galaxy in Sagittarius rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 118.3°
Max altitude: 10.2°
Azimuth: 241.7°