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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:51  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
sleep NighttimeWhat's Visible Now?
All Constellations » Scorpius » 


Altitude: -64.7°   Azimuth: 290.7°   Direction: West-North-West

HR6450 is a multiple supergiant star in the constellation of Scorpius.

HR6450 visual magnitude is 6.41. Because of its reltive faintness, HR6450 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 HR6450:


HR6450 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -64.7°
Azimuth: 290.7°
Direction: West-North-West

Celestial coordinates and finder chart of HR6450

HR6450 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6450 are provided in the following table:

17h 22m 39s
-37° 48’ 17”

The simplified sky map below shows the position of HR6450 in the sky:

Finder chart HR6450 star
Simplified finder chart for HR6450.

Visibility of HR6450 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 HR6450 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: 127.8°
Max altitude: 0.7°
Azimuth: 232.2°

Digitized Sky Survey image of HR6450

The image below is a photograph of HR6450 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 HR6450 is 0.017 arcsec per year in Right Ascension and -0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6450 star
DSS2 image of HR6450. The red arrow shows the motion of HR6450 during the next 10000 years (2.83 arcmin in Right Ascension and -2.17 arcmin in declination);

Distance of HR6450 from the Sun and relative movement

HR6450 is distant 32,600,000.00 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

10,000,000.00 pc
32,600,000.00 ly
-14 km/s
0.017 arcsec/year
-0.013 arcsec/year

Spectral properties of HR6450

HR6450 belongs to spectral class B4 and has a luminosity class of I corresponding to a supergiant star.


The red dot in the diagram below shows where HR6450 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6450. Attribution: Richard Powell / CC BY-SA

HR6450 star system properties

HR6450 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR6450 double sysyem:

2.7 arcsec

Alternative designations of HR6450