30 Pegasi

Below the horizon. Rise: 21:59 | Tran: 4:15 | Set: 10:31

Alt: -4.53° Az: 78.99° Direction: East

30 Pegasi is a variable and multiple sub-giant star of spectral class B5 in the constellation of Pegasus.

30 Pegasi visual magnitude is 5.37. Because of its faintness, 30 Pegasi is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of 30 Pegasi. The red arrow shows the motion of 30 Pegasi during the next 10000 years (3.83 arcmin in Right Ascension and -0.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 22h 21m 44s

Declination +05° 55’ 06”

Hour Angle 17h 18m 39s

Sidereal Time 15h 40m 24s

J2000

Right Ascension 22h 20m 27s

Declination +05° 47’ 21”

Galactic Coordinates

Galactic Longitude 69.3°

Galactic Latitude -40.86°

Finder Chart

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Finder chart for 30 Pegasi.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.37

Class Sub-giant

Absolute magnitude -1.88

Spectral Type B5IV

Color Index (B-V) -0.02

Temperature 10382K

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

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

Star System Properties

30 Pegasi is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 30 Pegasi double sysyem:

Main star magnitude 5.37

Secondary star magnitude 11.27

Magnitude difference 5.9

Separation 14.8 arcsec

Distance, Radial Speed, Proper Motion

30 Pegasi is distant 918.31 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 281.69

Distance (light year) 918.31

Radial Speed -8 km/s

Proper Motion RA 0.023 arcsec/y

Proper Motion Dec -0.001"/y

Alternative Designations

Flamsteed designation 30 Pegasi

Henry Draper Catalogue HD211924

SAO Catalogue SAO127453

Hipparcos Catalogue HIP110298

Durchmusterung Catalogue BD+05 4998

General Catalogue of Variable Stars 14122

Aitken Double Star Catalogue ADS15847

Visibility from Your Location

Today's 30 Pegasi rise, transit and set times from Palo Alto, United States are the following (all times relative to the local timezone America/Los_Angeles):

Azimuth: 84.1° RISE 21:59

Max altitude: 58.5° TRANSIT 4:15

Azimuth: 275.9° SET 10:31

Name:	Palo Alto, United States
Latitude:	37° 26' 30.8" N
Longitude:	122° 8' 34.8" W
Timezone:	America/Los_Angeles

Set Location

Other stars in Pegasus