HR4109

Below the horizon. Rise: 4:21 | Tran: 10:00 | Set: 15:38

Alt: -17.46° Az: 73.64° Direction: East-North-East

HR4109 is a variable star of spectral class A1 in the constellation of Sextans.

HR4109 visual magnitude is 6.05. Because of its faintness, HR4109 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 HR4109. The red arrow shows the motion of HR4109 during the next 10000 years (0.67 arcmin in Right Ascension and -4.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 29m 59s

Declination -03° 52’ 11”

Hour Angle 16h 26m 11s

Sidereal Time 02h 56m 10s

J2000

Right Ascension 10h 28m 44s

Declination -03° 44’ 33”

Galactic Coordinates

Galactic Longitude 249.25°

Galactic Latitude 43.76°

Finder Chart

Simplified finder chart for HR4109.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.05

Class

HR4109 is also a Sr chemically peculiar star.

Absolute magnitude 1.68

Spectral Type A1

Color Index (B-V) 0.05

Temperature 9542K

The red dot in the diagram below shows where HR4109 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4109. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4109 is distant 243.65 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

Distance (parsec) 74.74

Distance (light year) 243.65

Radial Speed -26 km/s

Proper Motion RA 0.004 arcsec/y

Proper Motion Dec -0.027"/y

Alternative Designations

Henry Draper Catalogue HD90763

SAO Catalogue SAO137591

Hipparcos Catalogue HIP51302

Durchmusterung Catalogue BD-03 2929

General Catalogue of Variable Stars Var?

Visibility from Your Location

Today's HR4109 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 93.9° RISE 4:21

Max altitude: 34.7° TRANSIT 10:00

Azimuth: 266.1° SET 15:38

Set Location

Other stars in Sextans