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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:44  
clear_day Transit: 12:03  
SunsetSet: 18:24
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All Constellations »  Hydrus »  Deep Sky Objects » 

NGC 813 - Lenticular Galaxy in Hydrus

Altitude: -36.9°   Azimuth: 202.4°   Direction: South-South-West

NGC 813 is a Lenticular Galaxy in the Hydrus constellation. NGC 813 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere.

The image below is a photograph of NGC 813 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 813 - Lenticular Galaxy in Hydrus star
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DSS2 image of NGC 813 in the Red band. The green region on the image is a representation of the major (1.42 arcmin) and minor (0.95 arcmin) axes of the object's apparent size.

Key facts about NGC 813

NGC 813
Galaxy
Hydrus

NGC 813 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -36.9°
Azimuth: 202.4°
Direction: South-South-West

See also NGC 813 rise and set times.

Given its B magnitude of 13.84, NGC 813 is visible with the help of a telescope having an aperture of 14 inches (350mm) or more.

Available Resources for NGC 813 - Lenticular Galaxy in Hydrus

Photometric information of NGC 813

The following table lists the magnitude of NGC 813 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).

13.84
10.81
10.2
9.95

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 813.

23.26 mag/arcsec2

Apparent size of NGC 813

The following table reports NGC 813 apparent angular size. The green area displayed on top of the DSS2 image of NGC 813 is a visual representation of it.
1.42 arcmin
0.95 arcmin
98°

NGC 813 - Lenticular Galaxy in Hydrus morphological classification

NGC 813 - Lenticular Galaxy in Hydrus is classified as Lenticular (S0-Aa) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 813 - Lenticular Galaxy in Hydrus in the Hubble de Vaucouleurs sequence.

NGC 813 - Lenticular Galaxy in Hydrus
Visualization of the morphological classification of NGC 813 - Lenticular Galaxy in Hydrus, Lenticular (S0-Aa).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of NGC 813

Celestial coordinates for the J2000 equinox of NGC 813 are provided in the following table:

02h 01m 36s
-68° 26’ 21”

The simplified sky charts below show the position of NGC 813 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 813 - Lenticular Galaxy in Hydrus star
Simplified finder chart for NGC 813 - Lenticular Galaxy in Hydrus.

Finder chart NGC 813 - Lenticular Galaxy in Hydrus star
Simplified finder chart for NGC 813 - Lenticular Galaxy in Hydrus.

Rise and set times of NGC 813 from your location

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

NGC 813 - Lenticular Galaxy in Hydrus is currently not visible from Greenwich, United Kingdom edit_location_alt