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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:58 
Transit: 13:04 
Sunset: 21:09
sunny   (Daytime)   What's Visible Now?
All Constellations »  Leo »  Deep Sky Objects » 

NGC 3731 - Elliptical Galaxy in Leo

Above the horizon.  Rise: 10:03 | Tran: 17:06 | Set: 0:08
Altitude: 30.5°   Azimuth: 250.3°   Direction: West-South-West

NGC 3731 is a Elliptical Galaxy in the Leo constellation. NGC 3731 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. Given its B magnitude of 14.3, NGC 3731 is visible with the help of a telescope having an aperture of 14 inches (350mm) or more.

The image below is a photograph of NGC 3731 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 0.5000x0.5000 degrees (30.00x30.00 arcmins).

Image of NGC 3731 - Elliptical Galaxy in Leo star
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DSS2 image of NGC 3731 in the Red band. The green region on the image is a representation of the major (0.97 arcmin) and minor (0.85 arcmin) axes of the object's apparent size.

Apparent Coordinates

11h 35m 28s
+12° 22’ 35”
03h 43m 18s

J2000 Coordinates

11h 34m 12s
+12° 30’ 44”

Finder Chart

The simplified sky charts below show the position of NGC 3731 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 3731 - Elliptical Galaxy in Leo star
Simplified finder chart for NGC 3731 - Elliptical Galaxy in Leo.

Finder chart NGC 3731 - Elliptical Galaxy in Leo star
Simplified finder chart for NGC 3731 - Elliptical Galaxy in Leo.

Photometric Information

The following table lists the magnitude of NGC 3731 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).

14.3
11.19
10.46
10.28

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 3731.

23.11 mag/arcsec2

Apparent Size

The following table reports NGC 3731 apparent angular size. The green area displayed on top of the DSS2 image of NGC 3731 is a visual representation of it.
0.97 arcmin
0.85 arcmin
45°

Morphological Classification

NGC 3731 - Elliptical Galaxy in Leo 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 3731 - Elliptical Galaxy in Leo in the Hubble de Vaucouleurs sequence.

NGC 3731 - Elliptical Galaxy in Leo
Visualization of the morphological classification of NGC 3731 - Elliptical Galaxy in Leo, Elliptical (E).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Rise and Set Times

Location: Greenwich, UK
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's NGC 3731 - Elliptical Galaxy in Leo rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 77.5°
Max altitude: 51.0°
Azimuth: 282.5°