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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:49  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
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Other deep sky objects in Andromeda
All Constellations »  Andromeda »  Deep Sky Objects » 

NGC 81 - Galaxy in Andromeda

Altitude: -6.9°   Azimuth: 320.1°   Direction: North-West

NGC 81 is a Galaxy in the Andromeda constellation. NGC 81 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 81
Galaxy
Andromeda

NGC 81 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -6.9°
Azimuth: 320.1°
Direction: North-West

See also NGC 81 rise and set times.

Given its B magnitude of 17.74, NGC 81 is visible only through long exposure photography.

Available Resources for NGC 81 - Galaxy in Andromeda

Photometric information of NGC 81

The following table lists the magnitude of NGC 81 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).

17.74
12.87
12.17
11.93

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 81.

23.25 mag/arcsec2

Apparent size of NGC 81

The following table reports NGC 81 apparent angular size. The green area displayed on top of the DSS2 image of NGC 81 is a visual representation of it.
0.41 arcmin
0.3 arcmin
88°

Digitized Sky Survey image of NGC 81

The image below is a photograph of NGC 81 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 81 - Galaxy in Andromeda star
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DSS2 image of NGC 81 in the Red band. The green region on the image is a representation of the major (0.41 arcmin) and minor (0.3 arcmin) axes of the object's apparent size.

Celestial coordinates and finder chart of NGC 81

Celestial coordinates for the J2000 equinox of NGC 81 are provided in the following table:

00h 21m 12s
+22° 22’ 58”

The simplified sky charts below show the position of NGC 81 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 81 - Galaxy in Andromeda star
Simplified finder chart for NGC 81 - Galaxy in Andromeda.

Finder chart NGC 81 - Galaxy in Andromeda star
Simplified finder chart for NGC 81 - Galaxy in Andromeda.

Rise ans set times of NGC 81 from your location

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

Today's NGC 81 - Galaxy in Andromeda rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 67.6°
Max altitude: 60.9°
Azimuth: 292.4°