HR9011

HR9011 is a variable and double sub-giant star in the constellation of Andromeda.

HR9011 visual magnitude is 6.07. Because of its reltive faintness, HR9011 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 HR9011:

Color of HR9011 ⬤

Magnitude of HR9011 6.07

Class Sub-giant

VISIBILITY RIGHT NOW HR9011 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 66°.

Celestial coordinates and finder chart of HR9011

HR9011 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 HR9011 are provided in the following table:

Right Ascension J2000 23h 47m 33s

Declination J2000 +46° 49’ 57”

Galactic Longitude 111.71°

Galactic Latitude -14.64°

Constellation Andromeda

The simplified sky map below shows the position of HR9011 in the sky:

Simplified finder chart for HR9011.

Visibility of HR9011 from your location

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

HR9011 is circumpolar and transits at 11:25 UTC (altitude: 85.4°)

Digitized Sky Survey image of HR9011

The image below is a photograph of HR9011 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 HR9011 is 0.013 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR9011. The red arrow shows the motion of HR9011 during the next 10000 years (2.17 arcmin in Right Ascension and -0.50 arcmin in declination);

Distance of HR9011 from the Sun and relative movement

HR9011 is distant 1,319.84 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

Distance (parsec) 404.86 pc

Distance (light year) 1,319.84 ly

Heliocentric radial velocity -24 km/s

Proper Motion RA 0.013 arcsec/year

Proper Motion Dec -0.003 arcsec/year

Spectral properties of HR9011

HR9011 belongs to spectral class B3 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -1.97

Spectral Type B3IV

Color Index (B-V) -0.14

Temperature of HR9011 12293K

The red dot in the diagram below shows where HR9011 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR9011. Attribution: Richard Powell / CC BY-SA

HR9011 star system properties

HR9011 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR9011 double sysyem:

Main star magnitude 6.07

Secondary star magnitude 8.07

Magnitude difference 2

Separation 0.9 arcsec

Alternative designations of HR9011

Henry Draper Catalogue HD223229

SAO Catalogue SAO53374

Hipparcos Catalogue HIP117340

Durchmusterung Catalogue BD+46 4169

General Catalogue of Variable Stars 14709

Aitken Double Star Catalogue ADS17006

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