HR4998

Below the horizon. Rise: 7:48 | Tran: 14:43 | Set: 21:38

Alt: -4.61° Az: 294.47° Direction: West-North-West

HR4998 is a double hypergiant star of spectral class M0 in the constellation of Virgo.

HR4998 visual magnitude is 5.67. Because of its faintness, HR4998 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 HR4998. The red arrow shows the motion of HR4998 during the next 10000 years (12.33 arcmin in Right Ascension and -8.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 13h 15m 45s

Declination +11° 12’ 05”

Hour Angle 07h 29m 23s

Sideral Time 20h 45m 08s

J2000

Right Ascension 13h 14m 31s

Declination +11° 19’ 54”

Galactic Coordinates

Galactic Longitude 322.99°

Galactic Latitude 73.3°

Finder Chart

Simplified finder chart for HR4998.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.67

Class Hypergiant

Absolute magnitude -0.29

Spectral Type M0III

Color Index (B-V) 1.5

Temperature 3794K

The red dot in the diagram below shows where HR4998 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4998. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4998 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 HR4998 double sysyem:

Main star magnitude 5.67

Secondary star magnitude 12.37

Magnitude difference 6.7

Separation 49.1 arcsec

Distance, Radial Speed, Proper Motion

HR4998 is distant 507.00 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

Distance (parsec) 155.52

Distance (light year) 507.00

Radial Speed 12 km/s

Proper Motion RA 0.074 arcsec/y

Proper Motion Dec -0.052"/y

Alternative Designations

Henry Draper Catalogue HD115046

SAO Catalogue SAO100473

Hipparcos Catalogue HIP64607

Durchmusterung Catalogue BD+12 2572

Aitken Double Star Catalogue ADS8832

Visibility from Your Location

Today's HR4998 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 78.8° RISE 7:48

Max altitude: 49.7° TRANSIT 14:43

Azimuth: 281.2° SET 21:38

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

Location

Other stars in Virgo