Matar - η Pegasi (eta Pegasi)

Above the horizon. Rise: 21:37 | Tran: 5:27 | Set: 13:13

Alt: 5.81° Az: 304.42° Direction: North-West

Matar, also designated as η Pegasi (eta Pegasi), is a variable and multiple bright giant star of spectral class G2 in the constellation of Pegasus.

Matar visual magnitude is 2.94. Because of its brightness, Matar is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of Matar - η Pegasi (eta Pegasi) star

DSS2 image of Matar. The red arrow shows the motion of Matar during the next 10000 years (2.50 arcmin in Right Ascension and -4.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 22h 44m 12s

Declination +30° 21’ 19”

Hour Angle 07h 12m 01s

Sidereal Time 05h 56m 13s

J2000

Right Ascension 22h 43m 00s

Declination +30° 13’ 17”

Galactic Coordinates

Galactic Longitude 92.5°

Galactic Latitude -24.95°

Finder Chart

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Finder chart for Matar - η Pegasi (eta Pegasi).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 2.94

Class Bright giant

Absolute magnitude -1.15

Spectral Type G2II

Color Index (B-V) 0.86

Temperature 5106K

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

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

Star System Properties

Matar 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 Matar double sysyem:

Main star magnitude 2.94

Secondary star magnitude 8.04

Magnitude difference 5.1

Separation 90.4 arcsec

Distance, Radial Speed, Proper Motion

Matar is distant 214.76 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 65.88

Distance (light year) 214.76

Radial Speed 4 km/s

Proper Motion RA 0.015 arcsec/y

Proper Motion Dec -0.025"/y

Alternative Designations

Proper Name Matar

Bayer designation η Pegasi
(eta Pegasi)

Flamsteed designation 44 Pegasi

Henry Draper Catalogue HD215182

SAO Catalogue SAO90734

Hipparcos Catalogue HIP112158

Durchmusterung Catalogue BD+29 4741

FK5 Catalogue 857

General Catalogue of Variable Stars 14285

Aitken Double Star Catalogue ADS16211

Visibility from Your Location

Today's Matar - η Pegasi (eta Pegasi) rise, transit and set times from Khalándrion, Greece are the following (all times relative to the local timezone Europe/Athens):

Azimuth: 59.6° RISE 21:37

Max altitude: 82.3° TRANSIT 5:27

Azimuth: 300.4° SET 13:13

Name:	Khalándrion, Greece
Latitude:	38° 1' 25.3" N
Longitude:	23° 48' 2.5" E
Timezone:	Europe/Athens

Set Location

Other stars in Pegasus