HR4218

Below the horizon. Rise: 7:08 | Tran: 11:45 | Set: 16:23

Alt: -26.49° Az: 81.38° Direction: East

HR4218 is a multiple hypergiant star of spectral class A0 in the constellation of Hydra.

HR4218 visual magnitude is 6.67. Because of its faintness, HR4218 is not visible to the naked eye.

DSS2 image of HR4218. The red arrow shows the motion of HR4218 during the next 10000 years (0.33 arcmin in Right Ascension and -2.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 48m 51s

Declination -15° 23’ 34”

Hour Angle 16h 26m 25s

Sideral Time 03h 15m 16s

J2000

Right Ascension 10h 47m 38s

Declination -15° 15’ 42”

Galactic Coordinates

Galactic Longitude 263.88°

Galactic Latitude 38.05°

Finder Chart

Simplified finder chart for HR4218.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.67

Class Hypergiant

Absolute magnitude -2.23

Spectral Type A0III

Color Index (B-V) -0.01

Temperature 10252K

The red dot in the diagram below shows where HR4218 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4218. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4218 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4218 double sysyem:

Main star magnitude 6.67

Secondary star magnitude 7.87

Magnitude difference 1.2

Separation 74.7 arcsec

Distance, Radial Speed, Proper Motion

HR4218 is distant 1,963.86 light years from the Sun and it is moving far from the Sun at the speed of 22 kilometers per second.

Distance (parsec) 602.41

Distance (light year) 1,963.86

Radial Speed 22 km/s

Proper Motion RA 0.002 arcsec/y

Proper Motion Dec -0.014"/y

Alternative Designations

Henry Draper Catalogue HD93526

SAO Catalogue SAO156235

Hipparcos Catalogue HIP52795

Durchmusterung Catalogue BD-14 3186

Aitken Double Star Catalogue ADS7930

Visibility from Your Location

Today's HR4218 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 105.4° RISE 7:08

Max altitude: 23.1° TRANSIT 11:45

Azimuth: 254.6° SET 16:23

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Hydra