30 Persei

Altitude: 62.8° Azimuth: 90.2° Direction: East

30 Persei is a main-sequence star in the constellation of Perseus.

30 Persei visual magnitude is 5.47. Because of its reltive faintness, 30 Persei 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 30 Persei:

Color of 30 Persei ⬤

Magnitude of 30 Persei 5.47

Class Main-sequence

VISIBILITY RIGHT NOW

30 Persei is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 62.8°
Azimuth: 90.2°
Direction: East

Celestial coordinates and finder chart of 30 Persei

30 Persei 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 30 Persei are provided in the following table:

Right Ascension J2000 03h 17m 47s

Declination J2000 +44° 01’ 29”

Galactic Longitude 148.85°

Galactic Latitude -11.36°

Constellation Perseus

The simplified sky map below shows the position of 30 Persei in the sky:

Simplified finder chart for 30 Persei.

Visibility of 30 Persei from your location

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

30 Persei is circumpolar and transits at 10:07 UTC (altitude: 82.5°)

Digitized Sky Survey image of 30 Persei

The image below is a photograph of 30 Persei 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 30 Persei is 0.032 arcsec per year in Right Ascension and -0.029 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 30 Persei. The red arrow shows the motion of 30 Persei during the next 10000 years (5.33 arcmin in Right Ascension and -4.83 arcmin in declination);

Distance of 30 Persei from the Sun and relative movement

30 Persei is distant 644.27 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

Distance (parsec) 197.63 pc

Distance (light year) 644.27 ly

Heliocentric radial velocity -1 km/s

Proper Motion RA 0.032 arcsec/year

Proper Motion Dec -0.029 arcsec/year

Spectral properties of 30 Persei

30 Persei belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -1.01

Spectral Type B8V

Color Index (B-V) -0.06

Temperature of 30 Persei 10941K

The red dot in the diagram below shows where 30 Persei is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 30 Persei. Attribution: Richard Powell / CC BY-SA

Alternative designations of 30 Persei

Flamsteed designation 30 Persei

Henry Draper Catalogue HD20315

SAO Catalogue SAO38704

Hipparcos Catalogue HIP15338

Durchmusterung Catalogue BD+43 674

In Evidence

Other stars in Perseus