Your guide to the Solar System and the night sky
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]

Algorab - δ Corvi (delta Corvi)

Algorab, also designated as δ Corvi (delta Corvi), is a variable and double main-sequence star in the constellation of Corvus.

Algorab visual magnitude is 2.95. Thanks to its high brightness, Algorab is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.

The table below summarizes the key facts about Algorab:

Algorab - δ Corvi (delta Corvi) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of Algorab

Algorab is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Algorab are provided in the following table:

12h 29m 51s
-16° 30’ 56”

The simplified sky map below shows the position of Algorab in the sky:

Finder chart Algorab - δ Corvi (delta Corvi) star
Simplified finder chart for Algorab - δ Corvi (delta Corvi).

Visibility of Algorab from your location

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

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

Azimuth: 106.5°
Max altitude: 22.0°
Azimuth: 253.5°
Algorab - δ Corvi (delta Corvi) is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of Algorab

The image below is a photograph of Algorab 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 Algorab is -0.21 arcsec per year in Right Ascension and -0.138 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Algorab - δ Corvi (delta Corvi) star
DSS2 image of Algorab. The red arrow shows the motion of Algorab during the next 1000 years (-3.50 arcmin in Right Ascension and -2.30 arcmin in declination);

Distance of Algorab from the Sun and relative movement

Algorab is distant 87.85 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

26.95 pc
87.85 ly
9 km/s
-0.21 arcsec/year
-0.138 arcsec/year

Spectral properties of Algorab

Algorab belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star.


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

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

Algorab star system properties

Algorab is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the Algorab double sysyem:

24.4 arcsec

Alternative designations of Algorab

δ Corvi
(delta Corvi)