Messier 45 (Pleiades) - Open Cluster
Messier 45 is a Open Cluster in the Taurus constellation. Messier 45 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.
- Messier 45 is above the horizon from Greenwich, United Kingdom [change]. Its current altitude is 25° above the horizon. See also rise and set times.
- Given its visual magnitude of 1.2, Messier 45 is visible to the naked eye, easy under dark skyes, might be difficult from heavily light pollyuted areas.
Photometric information of Messier 45
The following table lists the magnitude of Messier 45 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.
Apparent size of Messier 45The following table reports Messier 45 apparent angular size. The green area displayed on top of the DSS2 image of Messier 45 is a visual representation of it.
Digitized Sky Survey image of Messier 45
The image below is a photograph of Messier 45 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 5x5 degrees (300x300 arcmins).
Celestial coordinates and finder chart of Messier 45
Celestial coordinates for the J2000 equinox of Messier 45 are provided in the following table:
The simplified sky charts below show the position of Messier 45 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.