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

δ Indi (delta Indi)

δ Indi is a double hypergiant star in the constellation of Indus.

δ Indi visual magnitude is 4.4. Because of its moderate brightness, δ Indi 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 δ Indi:

4.4
Hypergiant
δ Indi (delta Indi) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of δ Indi

δ Indi 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 δ Indi are provided in the following table:

21h 57m 55s
-54° 59’ 32”
339.11°
-48.12°
Indus

The simplified sky map below shows the position of δ Indi in the sky:

Finder chart δ Indi (delta Indi) star
Simplified finder chart for δ Indi (delta Indi).

Visibility of δ Indi from your location

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

δ Indi (delta Indi) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of δ Indi

The image below is a photograph of δ Indi 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 δ Indi is 0.048 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of δ Indi (delta Indi) star
DSS2 image of δ Indi. The red arrow shows the motion of δ Indi during the next 10000 years (8.00 arcmin in Right Ascension and -1.17 arcmin in declination);

Distance of δ Indi from the Sun and relative movement

δ Indi is distant 184.70 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

56.66 pc
184.70 ly
15 km/s
0.048 arcsec/year
-0.007 arcsec/year

Spectral properties of δ Indi

δ Indi belongs to spectral class F0 and has a luminosity class of IV corresponding to a hypergiant star.

0.63
F0IV
7591K

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

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

δ Indi star system properties

δ Indi 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 δ Indi double sysyem:

4.4
4.5
0.1
0.1 arcsec

Alternative designations of δ Indi

δ Indi
(delta Indi)
SAO247244
SAO247244