Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:46  
clear_day Transit: 12:56  
SunsetSet: 21:07 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Lynx » 


HR3686 is a double main-sequence star in the constellation of Lynx.

HR3686 visual magnitude is 5.75. Because of its reltive faintness, HR3686 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 HR3686:

HR3686 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 7°.

Celestial coordinates and finder chart of HR3686

HR3686 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3686 are provided in the following table:

09h 18m 25s
+35° 21’ 51”

The simplified sky map below shows the position of HR3686 in the sky:

Finder chart HR3686 star
Simplified finder chart for HR3686.

Visibility of HR3686 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 HR3686 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: 54.6°
Max altitude: 73.9°
Azimuth: 305.4°
HR3686 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3686

The image below is a photograph of HR3686 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 HR3686 is -0.041 arcsec per year in Right Ascension and -0.024 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3686 star
DSS2 image of HR3686. The red arrow shows the motion of HR3686 during the next 10000 years (-6.83 arcmin in Right Ascension and -4.00 arcmin in declination);

Distance of HR3686 from the Sun and relative movement

HR3686 is distant 504.64 light years from the Sun and it is moving far from the Sun at the speed of 22 kilometers per second.

154.80 pc
504.64 ly
22 km/s
-0.041 arcsec/year
-0.024 arcsec/year

Spectral properties of HR3686

HR3686 belongs to spectral class A8 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3686 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3686. Attribution: Richard Powell / CC BY-SA

HR3686 star system properties

HR3686 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 HR3686 double sysyem:

1.8 arcsec

Alternative designations of HR3686