HR8257

Above the horizon. Rise: 18:39 | Tran: 3:31 | Set: 12:18

Alt: 52.17° Az: 112.09° Direction: East-South-East

HR8257 is a hypergiant star of spectral class F0 in the constellation of Pegasus.

HR8257 visual magnitude is 6.31. Because of its faintness, HR8257 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR8257. The red arrow shows the motion of HR8257 during the next 1000 years (2.13 arcmin in Right Ascension and -0.72 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 21h 36m 26s

Declination +28° 18’ 43”

Hour Angle 21h 19m 10s

Sidereal Time 18h 55m 36s

J2000

Right Ascension 21h 35m 18s

Declination +28° 11’ 49”

Galactic Coordinates

Galactic Longitude 78.72°

Galactic Latitude -17.39°

Finder Chart

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Finder chart for HR8257.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.31

Class Hypergiant

Absolute magnitude 2.03

Spectral Type F0IV

Color Index (B-V) 0.35

Temperature 7158K

The red dot in the diagram below shows where HR8257 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8257. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR8257 is distant 234.53 light years from the Sun and it is moving towards the Sun at the speed of 42 kilometers per second.

Distance (parsec) 71.94

Distance (light year) 234.53

Radial Speed -42 km/s

Proper Motion RA 0.128 arcsec/y

Proper Motion Dec -0.043"/y

Alternative Designations

Henry Draper Catalogue HD205539

SAO Catalogue SAO89815

Hipparcos Catalogue HIP106595

Durchmusterung Catalogue BD+27 4107

Visibility from Your Location

Today's HR8257 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 61.7° RISE 18:39

Max altitude: 66.8° TRANSIT 3:31

Azimuth: 298.3° SET 12:18

Set Location

Other stars in Pegasus