Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

24 Capricorni

24 Capricorni is a double hypergiant star in the constellation of Capricornus.

24 Capricorni visual magnitude is 4.5. Because of its moderate brightness, 24 Capricorni should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 24 Capricorni:

4.5
Hypergiant
24 Capricorni is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 24 Capricorni

24 Capricorni is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 24 Capricorni are provided in the following table:

21h 07m 07s
-25° 00’ 20”
21.98°
-40.01°
Capricornus

The simplified sky map below shows the position of 24 Capricorni in the sky:

Finder chart 24 Capricorni star
Simplified finder chart for 24 Capricorni.

Visibility of 24 Capricorni from your location

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

Today's 24 Capricorni rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 115.0°
Max altitude: 13.5°
Azimuth: 245.0°
24 Capricorni is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 24 Capricorni

The image below is a photograph of 24 Capricorni 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). The proper motion of 24 Capricorni is -0.023 arcsec per year in Right Ascension and -0.043 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 24 Capricorni star
DSS2 image of 24 Capricorni. The red arrow shows the motion of 24 Capricorni during the next 10000 years (-3.83 arcmin in Right Ascension and -7.17 arcmin in declination);

Distance of 24 Capricorni from the Sun and relative movement

24 Capricorni is distant 522.44 light years from the Sun and it is moving far from the Sun at the speed of 32 kilometers per second.

160.26 pc
522.44 ly
32 km/s
-0.023 arcsec/year
-0.043 arcsec/year

Spectral properties of 24 Capricorni

24 Capricorni belongs to spectral class M0 and has a luminosity class of III corresponding to a hypergiant star.

-1.52
M0III
3635K

The red dot in the diagram below shows where 24 Capricorni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 24 Capricorni. Attribution: Richard Powell / CC BY-SA

24 Capricorni star system properties

24 Capricorni is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 24 Capricorni double sysyem:

4.5
11.6
7.1
26.2 arcsec

Alternative designations of 24 Capricorni

24 Capricorni
SAO190025
SAO190025