HR8261

Altitude: 31.9° Azimuth: 80.5° Direction: East

HR8261 is a double giant star in the constellation of Cygnus.

HR8261 visual magnitude is 6.36. Because of its reltive faintness, HR8261 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 HR8261:

Color of HR8261 ⬤

Magnitude of HR8261 6.36

Class Giant

VISIBILITY RIGHT NOW

HR8261 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 31.9°
Azimuth: 80.5°
Direction: East

Celestial coordinates and finder chart of HR8261

HR8261 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 HR8261 are provided in the following table:

Right Ascension J2000 21h 36m 13s

Declination J2000 +30° 03’ 20”

Galactic Longitude 80.23°

Galactic Latitude -16.2°

Constellation Cygnus

The simplified sky map below shows the position of HR8261 in the sky:

Simplified finder chart for HR8261.

Visibility of HR8261 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 HR8261 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: 59.9° RISE 7:20

Max altitude: 68.6° TRANSIT 16:23

Azimuth: 300.1° SET 1:31

Digitized Sky Survey image of HR8261

The image below is a photograph of HR8261 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 HR8261 is -0.063 arcsec per year in Right Ascension and 0.062 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR8261. The red arrow shows the motion of HR8261 during the next 10000 years (-10.50 arcmin in Right Ascension and 10.33 arcmin in declination);

Distance of HR8261 from the Sun and relative movement

HR8261 is distant 356.67 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

Distance (parsec) 109.41 pc

Distance (light year) 356.67 ly

Heliocentric radial velocity -20 km/s

Proper Motion RA -0.063 arcsec/year

Proper Motion Dec 0.062 arcsec/year

Spectral properties of HR8261

HR8261 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 1.16

Spectral Type G8III

Color Index (B-V)

Temperature of HR8261 10125K

The red dot in the diagram below shows where HR8261 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8261. Attribution: Richard Powell / CC BY-SA

HR8261 star system properties

HR8261 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 HR8261 double sysyem:

Main star magnitude 6.36

Secondary star magnitude 10.76

Magnitude difference 4.4

Separation 2.1 arcsec

Alternative designations of HR8261

Henry Draper Catalogue HD205688

SAO Catalogue SAO89834

Hipparcos Catalogue HIP106661

Durchmusterung Catalogue BD+29 4456

Aitken Double Star Catalogue ADS15126

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In Evidence

Other stars in Cygnus