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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:41  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
wb_twilight  • Civil Twilight • What's Visible Now?

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Other deep sky objects in Ursa Minor
All Constellations »  Ursa Minor »  Deep Sky Objects » 

NGC 6331 - Elliptical Galaxy in Ursa Minor

Altitude: 54.1°   Azimuth: 18.4°   Direction: North-North-East

NGC 6331 is a Elliptical Galaxy in the Ursa Minor constellation. NGC 6331 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere.

NGC 6331
Galaxy
Ursa Minor

NGC 6331 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 54.1°
Azimuth: 18.4°
Direction: North-North-East

See also NGC 6331 rise and set times.

Given its B magnitude of 14, NGC 6331 is visible with the help of a telescope having an aperture of 14 inches (350mm) or more.

Available Resources for NGC 6331 - Elliptical Galaxy in Ursa Minor

Photometric information of NGC 6331

The following table lists the magnitude of NGC 6331 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).

14
11.69
10.97
10.6

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

Apparent size of NGC 6331

The following table reports NGC 6331 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6331 is a visual representation of it.
1.04 arcmin
1 arcmin
30°

Digitized Sky Survey image of NGC 6331

The image below is a photograph of NGC 6331 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).

Image of NGC 6331 - Elliptical Galaxy in Ursa Minor star
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DSS2 image of NGC 6331 in the Red band. The green region on the image is a representation of the major (1.04 arcmin) and minor (1 arcmin) axes of the object's apparent size.

NGC 6331 - Elliptical Galaxy in Ursa Minor morphological classification

NGC 6331 - Elliptical Galaxy in Ursa Minor is classified as Elliptical (E) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 6331 - Elliptical Galaxy in Ursa Minor in the Hubble de Vaucouleurs sequence.

NGC 6331 - Elliptical Galaxy in Ursa Minor
Visualization of the morphological classification of NGC 6331 - Elliptical Galaxy in Ursa Minor, Elliptical (E).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of NGC 6331

Celestial coordinates for the J2000 equinox of NGC 6331 are provided in the following table:

17h 03m 35s
+78° 37’ 44”

The simplified sky charts below show the position of NGC 6331 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 6331 - Elliptical Galaxy in Ursa Minor star
Simplified finder chart for NGC 6331 - Elliptical Galaxy in Ursa Minor.

Finder chart NGC 6331 - Elliptical Galaxy in Ursa Minor star
Simplified finder chart for NGC 6331 - Elliptical Galaxy in Ursa Minor.

Rise ans set times of NGC 6331 from your location

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

NGC 6331 - Elliptical Galaxy in Ursa Minor is circumpolar and transits at 12:23 UTC (altitude: 62.9°)