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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:59 
Transit: 12:56 
Sunset: 20:54
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All Constellations » Vela » 

HR3817

Below the horizon.  Never rises today
Alt: -27.46°   Az: 224.33°   Direction: South-West

HR3817 is a double sub-giant star of spectral class B4 in the constellation of Vela.

HR3817 visual magnitude is 5.12. Because of its faintness, HR3817 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 HR3817 star
DSS2 image of HR3817. The red arrow shows the motion of HR3817 during the next 10000 years (-2.67 arcmin in Right Ascension and 1.67 arcmin in declination);

Celestial Coordinates

Apparent

09h 34m 39s
-49° 07’ 07”
04h 45m 21s
14h 20m 00s

J2000

09h 33m 44s
-49° 00’ 18”

Galactic Coordinates

273.03°
2.04°

Finder Chart

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Finder chart for HR3817.

Magnitude, Color, Spectral Class

5.12
Sub-giant

-2.22
B4IV
11920K

The red dot in the diagram below shows where HR3817 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3817. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3817 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 HR3817 double sysyem:

5.12
5.92
0.8
2.1 arcsec

Distance, Radial Speed, Proper Motion

HR3817 is distant 958.82 light years from the Sun and it is moving far from the Sun at the speed of 17 kilometers per second.

294.12
958.82
17 km/s
-0.016 arcsec/y
0.01"/y

Alternative Designations

SAO221288
SAO221288

Visibility from Your Location

HR3817 is currently not visible from Greenwich, UK