HR250

Above the horizon. Circumpolar today

Alt: 48.61° Az: 300.63° Direction: West-North-West

HR250 is a multiple star of spectral class A5 in the constellation of Cassiopeia.

HR250 visual magnitude is 6.27. Because of its faintness, HR250 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 HR250. The red arrow shows the motion of HR250 during the next 10000 years (12.67 arcmin in Right Ascension and -4.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 00h 55m 14s

Declination +52° 49’ 23”

Hour Angle 04h 41m 12s

Sideral Time 05h 36m 26s

J2000

Right Ascension 00h 53m 47s

Declination +52° 41’ 21”

Galactic Coordinates

Galactic Longitude 123.29°

Galactic Latitude -10.18°

Finder Chart

Simplified finder chart for HR250.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.27

Class

Absolute magnitude 1.61

Spectral Type A5

Color Index (B-V) 0.19

Temperature 8241K

The red dot in the diagram below shows where HR250 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR250. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR250 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR250 double sysyem:

Main star magnitude 6.27

Secondary star magnitude 9.67

Magnitude difference 3.4

Separation 8.2 arcsec

Distance, Radial Speed, Proper Motion

HR250 is distant 278.16 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

Distance (parsec) 85.32

Distance (light year) 278.16

Radial Speed -1 km/s

Proper Motion RA 0.076 arcsec/y

Proper Motion Dec -0.026"/y

Alternative Designations

Henry Draper Catalogue HD5128

SAO Catalogue SAO21814

Hipparcos Catalogue HIP4212

Durchmusterung Catalogue BD+51 179

Aitken Double Star Catalogue ADS735

Visibility from Your Location

HR250 is circumpolar and transits at 23:34 UTC (altitude: 88.7°)

Set Location

Other stars in Cassiopeia