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: 4:48  
clear_day Transit: 12:56  
SunsetSet: 21:05 south
wb_twilight Nautical TwilightWhat's Visible Now
All Constellations » Cygnus » 


HR8186 is a main-sequence star in the constellation of Cygnus.

HR8186 visual magnitude is 6.63. Because of its reltive faintness, HR8186 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 HR8186:

HR8186 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 18°.

Celestial coordinates and finder chart of HR8186

HR8186 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 HR8186 are provided in the following table:

21h 22m 46s
+38° 38’ 03”

The simplified sky map below shows the position of HR8186 in the sky:

Finder chart HR8186 star
Simplified finder chart for HR8186.

Visibility of HR8186 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR8186 is circumpolar and transits at 04:41 UTC (altitude: 77.2°)

Digitized Sky Survey image of HR8186

The image below is a photograph of HR8186 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 HR8186 is 0.004 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 HR8186 star
DSS2 image of HR8186. The red arrow shows the motion of HR8186 during the next 10000 years (0.67 arcmin in Right Ascension and -4.00 arcmin in declination);

Distance of HR8186 from the Sun and relative movement

HR8186 is distant 649.40 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

199.20 pc
649.40 ly
-15 km/s
0.004 arcsec/year
-0.024 arcsec/year

Spectral properties of HR8186

HR8186 belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8186 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8186. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8186