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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:09 
Transit: 11:43 
Sunset: 16:18
sunny   (Daytime)  
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All Constellations » Vela » 

HR3688

Below the horizon.  Never rises today
Alt: -18.74°   Az: 219.40°   Direction: South-West

HR3688 is a variable and double supergiant star of spectral class A1 in the constellation of Vela.

HR3688 visual magnitude is 6.04. Because of its faintness, HR3688 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 HR3688 star
DSS2 image of HR3688. The red arrow shows the motion of HR3688 during the next 10000 years (2.83 arcmin in Right Ascension and 1.50 arcmin in declination);

Celestial Coordinates

Apparent

09h 16m 58s
-45° 00’ 11”
03h 52m 52s
13h 09m 51s

J2000

09h 16m 04s
-44° 53’ 54”

Galactic Coordinates

268°
2.87°

Finder Chart

Finder chart HR3688 star
Simplified finder chart for HR3688.

Magnitude, Color, Spectral Class

6.04
Supergiant

-4.58
A1I
7591K

The red dot in the diagram below shows where HR3688 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3688. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3688 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR3688 double sysyem:

6.04
14.04
8
6.8 arcsec

Distance, Radial Speed, Proper Motion

HR3688 is distant 4,346.67 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.

1,333.33
4,346.67
26 km/s
0.017 arcsec/y
0.009"/y

Alternative Designations

SAO221010
SAO221010

Visibility from Your Location

HR3688 is currently not visible from Greenwich, UK