HR234

Altitude: 28.4° Azimuth: 307.7° Direction: North-West

HR234 is a variable hypergiant star in the constellation of Andromeda.

HR234 visual magnitude is 6.15. Because of its reltive faintness, HR234 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 HR234:

Color of HR234 ⬤

Magnitude of HR234 6.15

Class Hypergiant

VISIBILITY RIGHT NOW

HR234 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 28.4°
Azimuth: 307.7°
Direction: North-West

Celestial coordinates and finder chart of HR234

HR234 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 HR234 are provided in the following table:

Right Ascension J2000 00h 50m 18s

Declination J2000 +45° 00’ 07”

Galactic Longitude 122.72°

Galactic Latitude -17.87°

Constellation Andromeda

The simplified sky map below shows the position of HR234 in the sky:

Simplified finder chart for HR234.

Visibility of HR234 from your location

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

HR234 is circumpolar and transits at 19:52 UTC (altitude: 83.5°)

Digitized Sky Survey image of HR234

The image below is a photograph of HR234 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 HR234 is 0.065 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 HR234. The red arrow shows the motion of HR234 during the next 10000 years (10.83 arcmin in Right Ascension and 1.00 arcmin in declination);

Distance of HR234 from the Sun and relative movement

HR234 is distant 296.09 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 90.83 pc

Distance (light year) 296.09 ly

Heliocentric radial velocity 2 km/s

Proper Motion RA 0.065 arcsec/year

Proper Motion Dec 0.006 arcsec/year

Spectral properties of HR234

HR234 belongs to spectral class A0 HR234 is also a Cr chemically peculiar star.

Absolute magnitude 1.36

Spectral Type A0

Color Index (B-V) 0.01

Temperature of HR234 10002K

The red dot in the diagram below shows where HR234 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR234. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR234

Henry Draper Catalogue HD4778

SAO Catalogue SAO36702

Hipparcos Catalogue HIP3919

Durchmusterung Catalogue BD+44 176

FK5 Catalogue 2055

General Catalogue of Variable Stars GO And

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