IC 3940 - Spiral Galaxy in Canes Venatici
IC 3940 is a Spiral Galaxy in the Canes Venatici constellation. IC 3940 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere.
- IC 3940 is above the horizon from Greenwich, United Kingdom . Its current altitude is 25° above the horizon. See also rise and set times.
- Given its B magnitude of 15.66, IC 3940 is visible only through long exposure photography.
Photometric information of IC 3940
The following table lists the magnitude of IC 3940 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).
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 3940.
Apparent size of IC 3940The following table reports IC 3940 apparent angular size. The green area displayed on top of the DSS2 image of IC 3940 is a visual representation of it.
Digitized Sky Survey image of IC 3940
The image below is a photograph of IC 3940 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).
IC 3940 - Spiral Galaxy in Canes Venatici morphological classification
IC 3940 - Spiral Galaxy in Canes Venatici 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 3940 - Spiral Galaxy in Canes Venatici in the Hubble de Vaucouleurs sequence.
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY
Celestial coordinates and finder chart of IC 3940
Celestial coordinates for the J2000 equinox of IC 3940 are provided in the following table:
The simplified sky charts below show the position of IC 3940 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.
Rise ans set times of IC 3940 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's IC 3940 - Spiral Galaxy in Canes Venatici rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):