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🌎  Greenwich, United Kingdom [change]


HR5661 is a multiple hypergiant star in the constellation of Circinus.

HR5661 visual magnitude is 5.73. Because of its reltive faintness, HR5661 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR5661:

HR5661 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR5661

HR5661 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 HR5661 are provided in the following table:

15h 16m 36s
-60° 54’ 14”

The simplified sky map below shows the position of HR5661 in the sky:

Finder chart HR5661 star
Simplified finder chart for HR5661.

Visibility of HR5661 from your location

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

HR5661 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR5661

The image below is a photograph of HR5661 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 HR5661 is -0.026 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR5661 star
DSS2 image of HR5661. The red arrow shows the motion of HR5661 during the next 10000 years (-4.33 arcmin in Right Ascension and 0.00 arcmin in declination);

Distance of HR5661 from the Sun and relative movement

HR5661 is distant 1,917.65 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

588.24 pc
1,917.65 ly
6 km/s
-0.026 arcsec/year

Spectral properties of HR5661

HR5661 belongs to spectral class B0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR5661 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR5661. Attribution: Richard Powell / CC BY-SA

HR5661 star system properties

HR5661 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR5661 double sysyem:

1.2 arcsec

Alternative designations of HR5661