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🌎 Location: Greenwich, United Kingdom [change]

NGC 3640 - Elliptical Galaxy

NGC 3640 is a Elliptical Galaxy in the Leo constellation. NGC 3640 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.

NGC 3640
Galaxy
Leo
  • NGC 3640 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 10.44, NGC 3640 is visible with the help of a binocular with a 80mm aperture or a small telescope.
Available Resources for NGC 3640 - Elliptical Galaxy

Photometric information of NGC 3640

The following table lists the magnitude of NGC 3640 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).

11.36
10.44
8.44
7.79
7.52

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 3640.

23.38 mag/arcsec2

Apparent size of NGC 3640

The following table reports NGC 3640 apparent angular size. The green area displayed on top of the DSS2 image of NGC 3640 is a visual representation of it.
4.33 arcmin
3.81 arcmin
98°

Digitized Sky Survey image of NGC 3640

The image below is a photograph of NGC 3640 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 3640 - Elliptical Galaxy star
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DSS2 image of NGC 3640 in the Red band. The green region on the image is a representation of the major (4.33 arcmin) and minor (3.81 arcmin) axes of the object's apparent size.

NGC 3640 - Elliptical Galaxy morphological classification

NGC 3640 - Elliptical Galaxy is classified as Elliptical (E) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 3640 - Elliptical Galaxy in the Hubble de Vaucouleurs sequence.

NGC 3640 - Elliptical Galaxy
Visualization of the morphological classification of NGC 3640 - Elliptical Galaxy, Elliptical (E).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of NGC 3640

Celestial coordinates for the J2000 equinox of NGC 3640 are provided in the following table:

11h 21m 06s
+03° 14’ 05”

The simplified sky charts below show the position of NGC 3640 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 3640 - Elliptical Galaxy star
Simplified finder chart for NGC 3640 - Elliptical Galaxy.

Finder chart NGC 3640 - Elliptical Galaxy star
Simplified finder chart for NGC 3640 - Elliptical Galaxy.

Rise ans set times of NGC 3640 from your location

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

Today's NGC 3640 - Elliptical Galaxy rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 86.8°
Max altitude: 41.8°
Azimuth: 273.2°
NGC 3640 - Elliptical Galaxy is below the horizon from Greenwich, United Kingdom