15 Pegasi

15 Pegasi is a sub-giant star in the constellation of Pegasus.

15 Pegasi visual magnitude is 5.53. Because of its reltive faintness, 15 Pegasi 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 15 Pegasi:

Color of 15 Pegasi ⬤

Magnitude of 15 Pegasi 5.53

Class Sub-giant

VISIBILITY RIGHT NOW 15 Pegasi is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of 15 Pegasi

15 Pegasi 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 15 Pegasi are provided in the following table:

Right Ascension J2000 21h 52m 29s

Declination J2000 +28° 47’ 35”

Galactic Longitude 82.05°

Galactic Latitude -19.54°

Constellation Pegasus

The simplified sky map below shows the position of 15 Pegasi in the sky:

Simplified finder chart for 15 Pegasi.

Visibility of 15 Pegasi 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 15 Pegasi 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: 61.2° RISE 21:30

Max altitude: 67.3° TRANSIT 6:26

Azimuth: 298.8° SET 15:18

RIGHT NOW 15 Pegasi is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 15 Pegasi

The image below is a photograph of 15 Pegasi 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 15 Pegasi is -0.059 arcsec per year in Right Ascension and -0.067 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 15 Pegasi. The red arrow shows the motion of 15 Pegasi during the next 10000 years (-9.83 arcmin in Right Ascension and -11.17 arcmin in declination);

Distance of 15 Pegasi from the Sun and relative movement

15 Pegasi is distant 90.18 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

Distance (parsec) 27.66 pc

Distance (light year) 90.18 ly

Heliocentric radial velocity 19 km/s

Proper Motion RA -0.059 arcsec/year

Proper Motion Dec -0.067 arcsec/year

Spectral properties of 15 Pegasi

15 Pegasi belongs to spectral class F6 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 3.32

Spectral Type F6IV

Color Index (B-V) 0.42

Temperature of 15 Pegasi 6776K

The red dot in the diagram below shows where 15 Pegasi is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 15 Pegasi. Attribution: Richard Powell / CC BY-SA

Alternative designations of 15 Pegasi

Flamsteed designation 15 Pegasi

Henry Draper Catalogue HD207978

SAO Catalogue SAO90065

Hipparcos Catalogue HIP107975

Durchmusterung Catalogue BD+28 4215

Gliese Catalogue NN 4234

In Evidence

Other stars in Pegasus