HR71

Altitude: 69.7° Azimuth: 167.7° Direction: South-South-East

HR71 is a hypergiant star in the constellation of Andromeda.

HR71 visual magnitude is 5.87. Because of its reltive faintness, HR71 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 HR71:

Color of HR71 ⬤

Magnitude of HR71 5.87

Class Hypergiant

VISIBILITY RIGHT NOW

HR71 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 69.7°
Azimuth: 167.7°
Direction: South-South-East

Celestial coordinates and finder chart of HR71

HR71 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 HR71 are provided in the following table:

Right Ascension J2000 00h 18m 38s

Declination J2000 +31° 31’ 01”

Galactic Longitude 114.79°

Galactic Latitude -30.84°

Constellation Andromeda

The simplified sky map below shows the position of HR71 in the sky:

Simplified finder chart for HR71.

Visibility of HR71 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 HR71 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: 58.5° RISE 10:18

Max altitude: 70.0° TRANSIT 19:37

Azimuth: 301.5° SET 4:59

Digitized Sky Survey image of HR71

The image below is a photograph of HR71 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 HR71 is 0.058 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR71. The red arrow shows the motion of HR71 during the next 10000 years (9.67 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of HR71 from the Sun and relative movement

HR71 is distant 543.33 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

Distance (parsec) 166.67 pc

Distance (light year) 543.33 ly

Heliocentric radial velocity -5 km/s

Proper Motion RA 0.058 arcsec/year

Proper Motion Dec -0.006 arcsec/year

Spectral properties of HR71

HR71 belongs to spectral class A0 and has a luminosity class of IV corresponding to a hypergiant star.

Absolute magnitude -0.24

Spectral Type A0IV

Color Index (B-V) -0.01

Temperature of HR71 10252K

The red dot in the diagram below shows where HR71 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR71. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR71

Henry Draper Catalogue HD1439

SAO Catalogue SAO53803

Hipparcos Catalogue HIP1493

Durchmusterung Catalogue BD+30 35

FK5 Catalogue 1006

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