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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:03 
Transit: 12:56 
Sunset: 20:50
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All Constellations » Ophiuchus » 

HR6490

Above the horizon.  Rise: 23:08 | Tran: 2:40 | Set: 6:08
Alt: 10.97°   Az: 196.37°   Direction: South-South-West

HR6490 is a hypergiant star of spectral class A0 in the constellation of Ophiuchus.

HR6490 visual magnitude is 6.44. Because of its faintness, HR6490 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of HR6490 star
DSS2 image of HR6490. The red arrow shows the motion of HR6490 during the next 10000 years (-4.67 arcmin in Right Ascension and -4.33 arcmin in declination);

Celestial Coordinates

Apparent

17h 28m 29s
-25° 57’ 47”
01h 11m 41s
18h 40m 10s

J2000

17h 26m 55s
-25° 56’ 35”

Galactic Coordinates

0.3°
5.11°

Finder Chart

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Finder chart for HR6490.

Magnitude, Color, Spectral Class

6.44
Hypergiant

0.88
A0V
10941K

The red dot in the diagram below shows where HR6490 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6490. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR6490 is distant 422.83 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

129.70
422.83
-8 km/s
-0.028 arcsec/y
-0.026"/y

Alternative Designations

SAO185406
SAO185406

Visibility from Your Location

Today's HR6490 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 116.0°
Max altitude: 12.6°
Azimuth: 244.0°