Your guide to the Solar System and the night sky
By donating now you help keep this site alive and free from ads. Please consider supporting this project.
🌎  Observing from: Greenwich, United Kingdom [change]

HR250

HR250 is a multiple star in the constellation of Cassiopeia.

HR250 visual magnitude is 6.27. Because of its reltive faintness, HR250 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 HR250:

6.27
HR250 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 18°.

Celestial coordinates and finder chart of HR250

HR250 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 HR250 are provided in the following table:

00h 53m 47s
+52° 41’ 21”
123.29°
-10.18°
Cassiopeia

The simplified sky map below shows the position of HR250 in the sky:

Finder chart HR250 star
Simplified finder chart for HR250.

Visibility of HR250 from your location

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

HR250 is circumpolar and transits at 15:43 UTC (altitude: 88.8°)

Digitized Sky Survey image of HR250

The image below is a photograph of HR250 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 HR250 is 0.076 arcsec per year in Right Ascension and -0.026 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR250 star
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);

Distance of HR250 from the Sun and relative movement

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.

85.32 pc
278.16 ly
-1 km/s
0.076 arcsec/year
-0.026 arcsec/year

Spectral properties of HR250

HR250 belongs to spectral class A5

1.61
A5
8241K

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

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

HR250 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:

6.27
9.67
3.4
8.2 arcsec

Alternative designations of HR250

SAO21814
SAO21814