ε Trianguli (epsilon Trianguli)

Below the horizon. Rise: 23:22 | Tran: 8:44 | Set: 18:02

Alt: -6.71° Az: 351.65° Direction: South

ε Trianguli is a variable and double main-sequence star of spectral class A2 in the constellation of Triangulum.

ε Trianguli visual magnitude is 5.5. Because of its faintness, ε Trianguli 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.

Image of ε Trianguli (epsilon Trianguli) star

DSS2 image of ε Trianguli. The red arrow shows the motion of ε Trianguli during the next 10000 years (-2.67 arcmin in Right Ascension and -2.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 02h 04m 27s

Declination +33° 24’ 19”

Hour Angle 11h 20m 11s

Sidereal Time 13h 24m 39s

J2000

Right Ascension 02h 02m 57s

Declination +33° 17’ 02”

Galactic Coordinates

Galactic Longitude 139.71°

Galactic Latitude -27.25°

Finder Chart

Loading map...

Finder chart for ε Trianguli (epsilon Trianguli).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.5

Class Main-sequence

Absolute magnitude 0.22

Spectral Type A2V

Color Index (B-V) 0.03

Temperature 9766K

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

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

Star System Properties

ε Trianguli is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the ε Trianguli double sysyem:

Main star magnitude 5.5

Secondary star magnitude 11.5

Magnitude difference 6

Separation 4.2 arcsec

Distance, Radial Speed, Proper Motion

ε Trianguli is distant 370.03 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

Distance (parsec) 113.51

Distance (light year) 370.03

Radial Speed 3 km/s

Proper Motion RA -0.016 arcsec/y

Proper Motion Dec -0.013"/y

Alternative Designations

Bayer designation ε Trianguli
(epsilon Trianguli)

Flamsteed designation 3 Trianguli

Henry Draper Catalogue HD12471

SAO Catalogue SAO55218

Hipparcos Catalogue HIP9570

Durchmusterung Catalogue BD+32 369

General Catalogue of Variable Stars 707

Aitken Double Star Catalogue ADS1621

Visibility from Your Location

Today's ε Trianguli (epsilon Trianguli) rise, transit and set times from Niedzica, Poland are the following (all times relative to the local timezone Europe/Warsaw):

Azimuth: 56.6° RISE 23:22

Max altitude: 74.0° TRANSIT 8:44

Azimuth: 303.4° SET 18:02

Name:	Niedzica, Poland
Latitude:	49° 24' 36.4" N
Longitude:	20° 18' 9.7" E
Timezone:	Europe/Warsaw

Set Location

Other stars in Triangulum