HR8169

HR8169 is a main-sequence star in the constellation of Cygnus.

HR8169 visual magnitude is 6.04. Because of its reltive faintness, HR8169 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 HR8169:

Color of HR8169 ⬤

Magnitude of HR8169 6.04

Class Main-sequence

VISIBILITY RIGHT NOW HR8169 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 67°.

Celestial coordinates and finder chart of HR8169

HR8169 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 HR8169 are provided in the following table:

Right Ascension J2000 21h 21m 21s

Declination J2000 +32° 36’ 46”

Galactic Longitude 79.8°

Galactic Latitude -12.15°

Constellation Cygnus

The simplified sky map below shows the position of HR8169 in the sky:

Simplified finder chart for HR8169.

Visibility of HR8169 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 HR8169 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: 57.4° RISE 20:08

Max altitude: 71.1° TRANSIT 5:43

Azimuth: 302.6° SET 15:14

RIGHT NOW HR8169 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR8169

The image below is a photograph of HR8169 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 HR8169 is 0.018 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR8169. The red arrow shows the motion of HR8169 during the next 10000 years (3.00 arcmin in Right Ascension and -1.83 arcmin in declination);

Distance of HR8169 from the Sun and relative movement

HR8169 is distant 604.82 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

Distance (parsec) 185.53 pc

Distance (light year) 604.82 ly

Heliocentric radial velocity -3 km/s

Proper Motion RA 0.018 arcsec/year

Proper Motion Dec -0.011 arcsec/year

Spectral properties of HR8169

HR8169 belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -0.30

Spectral Type A1V

Color Index (B-V) 0.03

Temperature of HR8169 9766K

The red dot in the diagram below shows where HR8169 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8169. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8169

Henry Draper Catalogue HD203439

SAO Catalogue SAO71237

Hipparcos Catalogue HIP105432

Durchmusterung Catalogue BD+32 4134

In Evidence

Other stars in Cygnus