Salm - τ Pegasi (tau Pegasi)

Altitude: -0.1° Azimuth: 49.6° Direction: North-East

Salm, also designated as τ Pegasi (tau Pegasi), is a variable main-sequence star in the constellation of Pegasus.

Salm visual magnitude is 4.6. Because of its moderate brightness, Salm should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about Salm:

Color of Salm ⬤

Magnitude of Salm 4.6

Class Main-sequence

VISIBILITY RIGHT NOW

Salm - τ Pegasi (tau Pegasi) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -0.1°
Azimuth: 49.6°
Direction: North-East

Celestial coordinates and finder chart of Salm

Salm is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Salm are provided in the following table:

Right Ascension J2000 23h 20m 38s

Declination J2000 +23° 44’ 25”

Galactic Longitude 97.51°

Galactic Latitude -34.61°

Constellation Pegasus

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

Finder chart Salm - τ Pegasi (tau Pegasi) star

Simplified finder chart for Salm - τ Pegasi (tau Pegasi).

Visibility of Salm 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 Salm - τ Pegasi (tau 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: 66.3° RISE 9:48

Max altitude: 62.3° TRANSIT 17:59

Azimuth: 293.7° SET 2:15

Digitized Sky Survey image of Salm

The image below is a photograph of Salm 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 Salm is 0.033 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of Salm - τ Pegasi (tau Pegasi) star

DSS2 image of Salm. The red arrow shows the motion of Salm during the next 10000 years (5.50 arcmin in Right Ascension and -1.33 arcmin in declination);

Distance of Salm from the Sun and relative movement

Salm is distant 167.18 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

Distance (parsec) 51.28 pc

Distance (light year) 167.18 ly

Heliocentric radial velocity 16 km/s

Proper Motion RA 0.033 arcsec/year

Proper Motion Dec -0.008 arcsec/year

Spectral properties of Salm

Salm belongs to spectral class A5 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 1.05

Spectral Type A5V

Color Index (B-V) 0.17

Temperature of Salm 8403K

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

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

Alternative designations of Salm

Proper Name Salm

Bayer designation τ Pegasi
(tau Pegasi)

Flamsteed designation 62 Pegasi

Henry Draper Catalogue HD220061

SAO Catalogue SAO91186

Hipparcos Catalogue HIP115250

Durchmusterung Catalogue BD+22 4810

FK5 Catalogue 880

General Catalogue of Variable Stars Tau Peg

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