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🌎  Greenwich, United Kingdom [change]

NGC 4645A - Lenticular Galaxy in Centaurus

NGC 4645A is a Lenticular Galaxy in the Centaurus constellation. NGC 4645A is situated south of the celestial equator and, as such, it is more easily visible from the southern emisphere.

NGC 4645A
Galaxy
Centaurus
  • NGC 4645A is below the horizon from Greenwich, United Kingdom [change]. See also rise and set times.
  • Given its B magnitude of 13.45, NGC 4645A is visible with the help of a telescope havng an aperture of 10 inches (250mm) or more.
Available Resources for NGC 4645A - Lenticular Galaxy in Centaurus

Photometric information of NGC 4645A

The following table lists the magnitude of NGC 4645A 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).

13.45
9.42
8.67
8.44

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 4645A.

24.5 mag/arcsec2

Apparent size of NGC 4645A

The following table reports NGC 4645A apparent angular size. The green area displayed on top of the DSS2 image of NGC 4645A is a visual representation of it.
3.03 arcmin
0.97 arcmin
30°

Digitized Sky Survey image of NGC 4645A

The image below is a photograph of NGC 4645A 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 NGC 4645A - Lenticular Galaxy in Centaurus star
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DSS2 image of NGC 4645A in the Red band. The green region on the image is a representation of the major (3.03 arcmin) and minor (0.97 arcmin) axes of the object's apparent size.

NGC 4645A - Lenticular Galaxy in Centaurus morphological classification

NGC 4645A - Lenticular Galaxy in Centaurus is classified as Lenticular (S0) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 4645A - Lenticular Galaxy in Centaurus in the Hubble de Vaucouleurs sequence.

NGC 4645A - Lenticular Galaxy in Centaurus
Visualization of the morphological classification of NGC 4645A - Lenticular Galaxy in Centaurus, Lenticular (S0).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of NGC 4645A

Celestial coordinates for the J2000 equinox of NGC 4645A are provided in the following table:

12h 43m 05s
-41° 21’ 32”

The simplified sky charts below show the position of NGC 4645A 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 NGC 4645A - Lenticular Galaxy in Centaurus star
Simplified finder chart for NGC 4645A - Lenticular Galaxy in Centaurus.

Finder chart NGC 4645A - Lenticular Galaxy in Centaurus star
Simplified finder chart for NGC 4645A - Lenticular Galaxy in Centaurus.

Rise ans set times of NGC 4645A from your location

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

NGC 4645A - Lenticular Galaxy in Centaurus is currently not visible from Greenwich, United Kingdom [change]