HR3858

Below the horizon. Rise: 15:03 | Tran: 18:47 | Set: 22:32

Alt: -3.23° Az: 125.16° Direction: South-East

HR3858 is a double main-sequence star of spectral class B6 in the constellation of Hydra.

HR3858 visual magnitude is 4.77. Because of its moderate brightness, HR3858 is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of HR3858. The red arrow shows the motion of HR3858 during the next 10000 years (-4.67 arcmin in Right Ascension and -0.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 42m 26s

Declination -23° 42’ 29”

Hour Angle 19h 47m 44s

Sidereal Time 05h 30m 11s

J2000

Right Ascension 09h 41m 17s

Declination -23° 35’ 30”

Galactic Coordinates

Galactic Longitude 256.29°

Galactic Latitude 21.6°

Finder Chart

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Finder chart for HR3858.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.77

Class Main-sequence

Absolute magnitude -1.15

Spectral Type B6V

Color Index (B-V) -0.12

Temperature 11920K

The red dot in the diagram below shows where HR3858 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3858. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3858 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 HR3858 double sysyem:

Main star magnitude 4.77

Secondary star magnitude 9.97

Magnitude difference 5.2

Separation 54.7 arcsec

Distance, Radial Speed, Proper Motion

HR3858 is distant 496.95 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.

Distance (parsec) 152.44

Distance (light year) 496.95

Radial Speed 26 km/s

Proper Motion RA -0.028 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Henry Draper Catalogue HD83953

SAO Catalogue SAO177840

Hipparcos Catalogue HIP47522

Durchmusterung Catalogue BD-22 2684

Visibility from Your Location

Today's HR3858 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.7° RISE 15:03

Max altitude: 14.8° TRANSIT 18:47

Azimuth: 246.3° SET 22:32

Set Location

Other stars in Hydra