HR189

HR189 is a main-sequence star in the constellation of Cassiopeia.

HR189 visual magnitude is 5.67. Because of its reltive faintness, HR189 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 HR189:

Color of HR189 ⬤

Magnitude of HR189 5.67

Class Main-sequence

VISIBILITY RIGHT NOW HR189 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 28°.

Celestial coordinates and finder chart of HR189

HR189 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 HR189 are provided in the following table:

Right Ascension J2000 00h 44m 26s

Declination J2000 +47° 51’ 51”

Galactic Longitude 121.72°

Galactic Latitude -14.99°

Constellation Cassiopeia

The simplified sky map below shows the position of HR189 in the sky:

Simplified finder chart for HR189.

Visibility of HR189 from your location

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

HR189 is circumpolar and transits at 08:18 UTC (altitude: 86.4°)

Digitized Sky Survey image of HR189

The image below is a photograph of HR189 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 HR189 is -0.026 arcsec per year in Right Ascension and 0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR189. The red arrow shows the motion of HR189 during the next 10000 years (-4.33 arcmin in Right Ascension and 2.50 arcmin in declination);

Distance of HR189 from the Sun and relative movement

HR189 is distant 759.91 light years from the Sun and it is moving towards the Sun at the speed of 60 kilometers per second.

Distance (parsec) 233.10 pc

Distance (light year) 759.91 ly

Heliocentric radial velocity -60 km/s

Proper Motion RA -0.026 arcsec/year

Proper Motion Dec 0.015 arcsec/year

Spectral properties of HR189

HR189 belongs to spectral class B5 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -1.17

Spectral Type B5V

Color Index (B-V) -0.12

Temperature of HR189 11920K

The red dot in the diagram below shows where HR189 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR189. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR189

Henry Draper Catalogue HD4142

SAO Catalogue SAO36617

Hipparcos Catalogue HIP3478

Durchmusterung Catalogue BD+47 181

In Evidence

Other stars in Cassiopeia