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🌎  Greenwich, United Kingdom [change]

Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici

Messier 51 is a Intermediate Spiral Galaxy in the Canes Venatici constellation. Messier 51 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere.

Messier 51
Galaxy
Canes Venatici
  • Messier 51 is above the horizon from Greenwich, United Kingdom [change]. Its current altitude is 34° above the horizon. See also rise and set times.
  • Given its visual magnitude of 8.36, Messier 51 is visible with the help of a binocular with a 40-50mm aperture or a small telescope.
Available Resources for Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici

Photometric information of Messier 51

The following table lists the magnitude of Messier 51 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).

9.26
8.36
6.4
5.65
5.5

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 Messier 51.

22.9 mag/arcsec2

Apparent size of Messier 51

The following table reports Messier 51 apparent angular size. The green area displayed on top of the DSS2 image of Messier 51 is a visual representation of it.
13.71 arcmin
11.67 arcmin
163°

Digitized Sky Survey image of Messier 51

The image below is a photograph of Messier 51 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 0.457x0.457 degrees (27.42x27.42 arcmins).

Image of Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici star
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DSS2 image of Messier 51 in the Red band. The green region on the image is a representation of the major (13.71 arcmin) and minor (11.67 arcmin) axes of the object's apparent size.

Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici morphological classification

Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici is classified as Intermediate Spiral (SABb) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici in the Hubble de Vaucouleurs sequence.

Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici
Visualization of the morphological classification of Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici, Intermediate Spiral (SABb).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of Messier 51

Celestial coordinates for the J2000 equinox of Messier 51 are provided in the following table:

13h 29m 53s
+47° 11’ 42”

The simplified sky charts below show the position of Messier 51 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 Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici star
Simplified finder chart for Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici.

Finder chart Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici star
Simplified finder chart for Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici.

Rise ans set times of Messier 51 from your location

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

Messier 51 (Whirlpool Galaxy) - Intermediate Spiral Galaxy in Canes Venatici is circumpolar and transits at 13:11 UTC (altitude: 85.7°)