HR647

HR647 is a double main-sequence star in the constellation of Andromeda.

HR647 visual magnitude is 6.06. Because of its reltive faintness, HR647 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 HR647:

Color of HR647 ⬤

Magnitude of HR647 6.06

Class Main-sequence

VISIBILITY RIGHT NOW HR647 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 46°.

Celestial coordinates and finder chart of HR647

HR647 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 HR647 are provided in the following table:

Right Ascension J2000 02h 14m 02s

Declination J2000 +47° 29’ 03”

Galactic Longitude 137.1°

Galactic Latitude -13.1°

Constellation Andromeda

The simplified sky map below shows the position of HR647 in the sky:

Simplified finder chart for HR647.

Visibility of HR647 from your location

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

HR647 is circumpolar and transits at 13:51 UTC (altitude: 86.0°)

Digitized Sky Survey image of HR647

The image below is a photograph of HR647 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 HR647 is -0.063 arcsec per year in Right Ascension and -0.059 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR647. The red arrow shows the motion of HR647 during the next 10000 years (-10.50 arcmin in Right Ascension and -9.83 arcmin in declination);

Distance of HR647 from the Sun and relative movement

HR647 is distant 135.44 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 41.55 pc

Distance (light year) 135.44 ly

Heliocentric radial velocity -8 km/s

Proper Motion RA -0.063 arcsec/year

Proper Motion Dec -0.059 arcsec/year

Spectral properties of HR647

HR647 belongs to spectral class F4 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 2.97

Spectral Type F4V

Color Index (B-V) 0.4

Temperature of HR647 6880K

The red dot in the diagram below shows where HR647 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR647. Attribution: Richard Powell / CC BY-SA

HR647 star system properties

HR647 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR647 double sysyem:

Main star magnitude 6.06

Secondary star magnitude 6.66

Magnitude difference 0.6

Separation 1 arcsec

Alternative designations of HR647

Henry Draper Catalogue HD13594

SAO Catalogue SAO37878

Hipparcos Catalogue HIP10403

Durchmusterung Catalogue BD+46 536

Aitken Double Star Catalogue ADS1709

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Other stars in Andromeda