HR157

Altitude: -2.6° Azimuth: 8.4° Direction: North

HR157 is a bright giant star in the constellation of Andromeda.

HR157 visual magnitude is 5.48. Because of its reltive faintness, HR157 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 HR157:

Color of HR157 ⬤

Magnitude of HR157 5.48

Class Bright giant

VISIBILITY RIGHT NOW

HR157 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -2.6°
Azimuth: 8.4°
Direction: North

Celestial coordinates and finder chart of HR157

HR157 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 HR157 are provided in the following table:

Right Ascension J2000 00h 37m 21s

Declination J2000 +35° 23’ 57”

Galactic Longitude 119.7°

Galactic Latitude -27.38°

Constellation Andromeda

The simplified sky map below shows the position of HR157 in the sky:

Simplified finder chart for HR157.

Visibility of HR157 from your location

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

Today's HR157 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 54.6° RISE 9:26

Max altitude: 73.9° TRANSIT 19:36

Azimuth: 305.4° SET 5:49

Digitized Sky Survey image of HR157

The image below is a photograph of HR157 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 HR157 is -0.016 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR157. The red arrow shows the motion of HR157 during the next 10000 years (-2.67 arcmin in Right Ascension and -0.83 arcmin in declination);

Distance of HR157 from the Sun and relative movement

HR157 is distant 1,021.94 light years from the Sun

Distance (parsec) 313.48 pc

Distance (light year) 1,021.94 ly

Proper Motion RA -0.016 arcsec/year

Proper Motion Dec -0.005 arcsec/year

Spectral properties of HR157

HR157 belongs to spectral class G2 and has a luminosity class of II corresponding to a bright giant star.

Absolute magnitude -2.00

Spectral Type G2II

Color Index (B-V) 0.88

Temperature of HR157 5051K

The red dot in the diagram below shows where HR157 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR157. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR157

Henry Draper Catalogue HD3421

SAO Catalogue SAO54038

Hipparcos Catalogue HIP2942

Durchmusterung Catalogue BD+34 86

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