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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:51  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
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Other deep sky objects in Cancer
All Constellations »  Cancer »  Deep Sky Objects » 

IC 493 - Spiral Galaxy in Cancer

Altitude: 31.3°   Azimuth: 88.1°   Direction: East

IC 493 is a Spiral Galaxy in the Cancer constellation. IC 493 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere.

IC 493
Galaxy
Cancer

IC 493 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 31.3°
Azimuth: 88.1°
Direction: East

See also IC 493 rise and set times.

Given its B magnitude of 14.8, IC 493 is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.

Available Resources for IC 493 - Spiral Galaxy in Cancer

Photometric information of IC 493

The following table lists the magnitude of IC 493 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).

14.8
11.99
11.27
10.96

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 IC 493.

22.86 mag/arcsec2

Apparent size of IC 493

The following table reports IC 493 apparent angular size. The green area displayed on top of the DSS2 image of IC 493 is a visual representation of it.
0.81 arcmin
0.61 arcmin
18°

Digitized Sky Survey image of IC 493

The image below is a photograph of IC 493 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 IC 493 - Spiral Galaxy in Cancer star
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DSS2 image of IC 493 in the Red band. The green region on the image is a representation of the major (0.81 arcmin) and minor (0.61 arcmin) axes of the object's apparent size.

IC 493 - Spiral Galaxy in Cancer morphological classification

IC 493 - Spiral Galaxy in Cancer is classified as Spiral (SAb) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of IC 493 - Spiral Galaxy in Cancer in the Hubble de Vaucouleurs sequence.

IC 493 - Spiral Galaxy in Cancer
Visualization of the morphological classification of IC 493 - Spiral Galaxy in Cancer, Spiral (SAb).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of IC 493

Celestial coordinates for the J2000 equinox of IC 493 are provided in the following table:

08h 07m 27s
+25° 08’ 02”

The simplified sky charts below show the position of IC 493 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 IC 493 - Spiral Galaxy in Cancer star
Simplified finder chart for IC 493 - Spiral Galaxy in Cancer.

Finder chart IC 493 - Spiral Galaxy in Cancer star
Simplified finder chart for IC 493 - Spiral Galaxy in Cancer.

Rise ans set times of IC 493 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 IC 493 - Spiral Galaxy in Cancer 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: 64.9°
Max altitude: 63.7°
Azimuth: 295.1°