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public  Libu, Cina Libu, Cina  ⓘ
TimezoneAsia/Shanghai
Sunrise: 5:50 
Transit: 12:35 
Sunset: 19:21
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All Constellations » Hydra » 

HR4628

Below the horizon.  Rise: 12:43 | Tran: 17:27 | Set: 22:11
Alt: -0.98°   Az: 128.35°   Direction: South-East

HR4628 is a double hypergiant star of spectral class A0 in the constellation of Hydra.

HR4628 visual magnitude is 6.17. Because of its faintness, HR4628 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 HR4628 star
DSS2 image of HR4628. The red arrow shows the motion of HR4628 during the next 10000 years (-8.67 arcmin in Right Ascension and -3.00 arcmin in declination);

Celestial Coordinates

Apparent

12h 11m 22s
-34° 50’ 48”
19h 08m 40s
07h 20m 02s

J2000

12h 10m 02s
-34° 42’ 17”

Galactic Coordinates

293.36°
27.4°

Finder Chart

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Finder chart for HR4628.

Magnitude, Color, Spectral Class

6.17
Hypergiant

1.15
A0V
9766K

The red dot in the diagram below shows where HR4628 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4628. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4628 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 HR4628 double sysyem:

6.17
7.97
1.8
3.4 arcsec

Distance, Radial Speed, Proper Motion

HR4628 is distant 328.63 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

100.81
328.63
-10 km/s
-0.052 arcsec/y
-0.018"/y

Alternative Designations

SAO203183
SAO203183

Visibility from Your Location

Today's HR4628 rise, transit and set times from Libu, Cina are the following (all times relative to the local timezone Asia/Shanghai):

Azimuth: 124.8°
Max altitude: 30.6°
Azimuth: 235.2°