HR7999

HR7999 is a star in the constellation of Cygnus.

HR7999 visual magnitude is 6.34. Because of its reltive faintness, HR7999 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 HR7999:

Color of HR7999 ⬤

Magnitude of HR7999 6.34

Class

VISIBILITY RIGHT NOW HR7999 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 9°.

Celestial coordinates and finder chart of HR7999

HR7999 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 HR7999 are provided in the following table:

Right Ascension J2000 20h 53m 07s

Declination J2000 +29° 38’ 57”

Galactic Longitude 73.47°

Galactic Latitude -9.56°

Constellation Cygnus

The simplified sky map below shows the position of HR7999 in the sky:

Simplified finder chart for HR7999.

Visibility of HR7999 from your location

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

Today's HR7999 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 60.4° RISE 0:02

Max altitude: 68.2° TRANSIT 9:02

Azimuth: 299.6° SET 18:02

RIGHT NOW HR7999 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR7999

The image below is a photograph of HR7999 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 HR7999 is -0.001 arcsec per year in Right Ascension and -0.047 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR7999. The red arrow shows the motion of HR7999 during the next 10000 years (-0.17 arcmin in Right Ascension and -7.83 arcmin in declination);

Distance of HR7999 from the Sun and relative movement

HR7999 is distant 426.70 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

Distance (parsec) 130.89 pc

Distance (light year) 426.70 ly

Heliocentric radial velocity -10 km/s

Proper Motion RA -0.001 arcsec/year

Proper Motion Dec -0.047 arcsec/year

Spectral properties of HR7999

HR7999 belongs to spectral class K2

Absolute magnitude 0.76

Spectral Type K2

Color Index (B-V) 1.09

Temperature of HR7999 4537K

The red dot in the diagram below shows where HR7999 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7999. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7999

Henry Draper Catalogue HD198976

SAO Catalogue SAO89241

Hipparcos Catalogue HIP103079

Durchmusterung Catalogue BD+29 4221

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In Evidence

Other stars in Cygnus