We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Donate Now! Help keep this site free and ads-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:04  
clear_day Transit: 12:06  
SunsetSet: 18:09
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations »  Coma Berenices »  Deep Sky Objects » 

NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices

Altitude: 32.8°   Azimuth: 250.4°   Direction: West-South-West

NGC 4633 is a Intermediate Spiral Galaxy in the Coma Berenices constellation. NGC 4633 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.

The image below is a photograph of NGC 4633 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 4633 - Intermediate Spiral Galaxy in Coma Berenices star
/>
DSS2 image of NGC 4633 in the Red band. The green region on the image is a representation of the major (1.77 arcmin) and minor (0.75 arcmin) axes of the object's apparent size.

Key facts about NGC 4633

NGC 4633
Galaxy
Coma Berenices

NGC 4633 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 32.8°
Azimuth: 250.4°
Direction: West-South-West

See also NGC 4633 rise and set times.

Given its B magnitude of 14.7, NGC 4633 is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.

Available Resources for NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices

Photometric information of NGC 4633

The following table lists the magnitude of NGC 4633 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).

14.7
10.27

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 4633.

22.97 mag/arcsec2

Apparent size of NGC 4633

The following table reports NGC 4633 apparent angular size. The green area displayed on top of the DSS2 image of NGC 4633 is a visual representation of it.
1.77 arcmin
0.75 arcmin
33°

NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices morphological classification

NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices is classified as Intermediate Spiral (SABd) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices in the Hubble de Vaucouleurs sequence.

NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices
Visualization of the morphological classification of NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices, Intermediate Spiral (SABd).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of NGC 4633

Celestial coordinates for the J2000 equinox of NGC 4633 are provided in the following table:

12h 42m 37s
+14° 21’ 25”

The simplified sky charts below show the position of NGC 4633 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 4633 - Intermediate Spiral Galaxy in Coma Berenices star
Simplified finder chart for NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices.

Finder chart NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices star
Simplified finder chart for NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices.

Rise and set times of NGC 4633 from your location

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

Today's NGC 4633 - Intermediate Spiral Galaxy in Coma Berenices rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 75.6°
Max altitude: 52.9°
Azimuth: 284.4°