NGC 643B - Lenticular Galaxy in Hydrus
NGC 643B is a Lenticular Galaxy in the Hydrus constellation. NGC 643B is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere.
Photometric information of NGC 643B
The following table lists the magnitude of NGC 643B 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 NGC 643B.
Apparent size of NGC 643BThe following table reports NGC 643B apparent angular size. The green area displayed on top of the DSS2 image of NGC 643B is a visual representation of it.
Digitized Sky Survey image of NGC 643B
The image below is a photograph of NGC 643B 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).
NGC 643B - Lenticular Galaxy in Hydrus morphological classification
NGC 643B - 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 643B - Lenticular Galaxy in Hydrus in the Hubble de Vaucouleurs sequence.
Celestial coordinates and finder chart of NGC 643B
Celestial coordinates for the J2000 equinox of NGC 643B are provided in the following table:
The simplified sky charts below show the position of NGC 643B 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 NGC 643B from your location
NGC 643B - Lenticular Galaxy in Hydrus is currently not visible from Greenwich, United Kingdom [change]