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NGC 4630 - Irregular Galaxy

NGC 4630 is a Irregular Galaxy in the Virgo constellation. NGC 4630 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 4630
Galaxy
Virgo
  • NGC 4630 is above the horizon from Greenwich, United Kingdom [change]. Its current altitude is 30° above the horizon. See also rise and set times.
  • Given its B magnitude of 13.4, NGC 4630 is visible with the help of a telescope havng an aperture of 10 inches (250mm) or more.
Available Resources for NGC 4630 - Irregular Galaxy

Photometric information of NGC 4630

The following table lists the magnitude of NGC 4630 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).

13.4
10.75
10.21
9.89

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 4630.

22.6 mag/arcsec2

Apparent size of NGC 4630

The following table reports NGC 4630 apparent angular size. The green area displayed on top of the DSS2 image of NGC 4630 is a visual representation of it.
1.66 arcmin
1.21 arcmin
10°

Digitized Sky Survey image of NGC 4630

The image below is a photograph of NGC 4630 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 4630 - Irregular Galaxy star
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DSS2 image of NGC 4630 in the Red band. The green region on the image is a representation of the major (1.66 arcmin) and minor (1.21 arcmin) axes of the object's apparent size.

NGC 4630 - Irregular Galaxy morphological classification

NGC 4630 - Irregular Galaxy is classified as Irregular (I) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 4630 - Irregular Galaxy in the Hubble de Vaucouleurs sequence.

NGC 4630 - Irregular Galaxy
Visualization of the morphological classification of NGC 4630 - Irregular Galaxy, Irregular (I).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of NGC 4630

Celestial coordinates for the J2000 equinox of NGC 4630 are provided in the following table:

12h 42m 30s
+03° 57’ 36”

The simplified sky charts below show the position of NGC 4630 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 4630 - Irregular Galaxy star
Simplified finder chart for NGC 4630 - Irregular Galaxy.

Finder chart NGC 4630 - Irregular Galaxy star
Simplified finder chart for NGC 4630 - Irregular Galaxy.

Rise ans set times of NGC 4630 from your location

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

Today's NGC 4630 - Irregular Galaxy rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 86.0°
Max altitude: 42.5°
Azimuth: 274.0°
NGC 4630 - Irregular Galaxy is below the horizon from Greenwich, United Kingdom