HR638

Below the horizon. Rise: 5:36 | Tran: 10:43 | Set: 15:51

Alt: -15.92° Az: 274.03° Direction: West

HR638 is a main-sequence star of spectral class F5 in the constellation of Cetus.

HR638 visual magnitude is 6.01. Because of its faintness, HR638 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 HR638. The red arrow shows the motion of HR638 during the next 1000 years (-0.37 arcmin in Right Ascension and -2.77 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 02h 12m 37s

Declination -09° 56’ 00”

Hour Angle 06h 52m 30s

Sidereal Time 09h 05m 07s

J2000

Right Ascension 02h 11m 22s

Declination -10° 03’ 07”

Galactic Coordinates

Galactic Longitude 174.54°

Galactic Latitude -64.57°

Finder Chart

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Finder chart for HR638.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.01

Class Main-sequence

Absolute magnitude 2.52

Spectral Type F5V

Color Index (B-V) 0.39

Temperature 6934K

The red dot in the diagram below shows where HR638 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR638. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR638 is distant 163.00 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

Distance (parsec) 50.00

Distance (light year) 163.00

Radial Speed 11 km/s

Proper Motion RA -0.022 arcsec/y

Proper Motion Dec -0.166"/y

Alternative Designations

Henry Draper Catalogue HD13456

SAO Catalogue SAO148262

Hipparcos Catalogue HIP10215

Durchmusterung Catalogue BD-10 447

FK5 Catalogue 2150

Visibility from Your Location

Today's HR638 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 99.9° RISE 5:36

Max altitude: 28.6° TRANSIT 10:43

Azimuth: 260.1° SET 15:51

Set Location

Other stars in Cetus