ρ Persei (rho Persei)

Above the horizon. Circumpolar today

Alt: 26.75° Az: 60.20° Direction: East-North-East

ρ Persei is a variable bright giant star of spectral class M4 in the constellation of Perseus.

ρ Persei visual magnitude is 3.39. Because of its moderate brightness, ρ Persei is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of ρ Persei. The red arrow shows the motion of ρ Persei during the next 1000 years (2.17 arcmin in Right Ascension and -1.77 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 03h 06m 48s

Declination +38° 56’ 15”

Hour Angle 17h 40m 16s

Sidereal Time 20h 47m 04s

J2000

Right Ascension 03h 05m 10s

Declination +38° 50’ 25”

Galactic Coordinates

Galactic Longitude 149.6°

Galactic Latitude -17.01°

Finder Chart

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Finder chart for ρ Persei (rho Persei).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.39

Class Bright giant

Absolute magnitude -1.60

Spectral Type M4II

Color Index (B-V) 1.65

Temperature 3581K

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

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

Distance, Radial Speed, Proper Motion

ρ Persei is distant 325.02 light years from the Sun and it is moving far from the Sun at the speed of 28 kilometers per second.

Distance (parsec) 99.70

Distance (light year) 325.02

Radial Speed 28 km/s

Proper Motion RA 0.13 arcsec/y

Proper Motion Dec -0.106"/y

Alternative Designations

Bayer designation ρ Persei
(rho Persei)

Flamsteed designation 25 Persei

Henry Draper Catalogue HD19058

SAO Catalogue SAO56138

Hipparcos Catalogue HIP14354

Durchmusterung Catalogue BD+38 630

FK5 Catalogue 109

General Catalogue of Variable Stars Rho Per

Visibility from Your Location

ρ Persei (rho Persei) is circumpolar and transits at 11:21 UTC (altitude: 77.5°)

In Evidence

Other stars in Perseus

ρ Persei (rho Persei)

Celestial Coordinates

Apparent

J2000

Galactic Coordinates

Finder Chart

Magnitude, Color, Spectral Class

Distance, Radial Speed, Proper Motion

Alternative Designations

Visibility from Your Location

Set Location

In Evidence

Other stars in Perseus

ρ Persei (rho Persei)

Celestial Coordinates

Apparent

J2000

Galactic Coordinates

Finder Chart

Magnitude, Color, Spectral Class

Distance, Radial Speed, Proper Motion

Alternative Designations

Visibility from Your Location