Sceptrum - 53 Eridani

Above the horizon. Rise: 1:08 | Tran: 5:52 | Set: 10:36

Alt: 17.57° Az: 144.34° Direction: South-East

Sceptrum, also designated as 53 Eridani , is a double giant star of spectral class K2 in the constellation of Eridanus.

Sceptrum visual magnitude is 3.87. Because of its moderate brightness, Sceptrum 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 Sceptrum. The red arrow shows the motion of Sceptrum during the next 1000 years (-1.25 arcmin in Right Ascension and -2.60 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 04h 39m 18s

Declination -14° 15’ 22”

Hour Angle 21h 40m 01s

Sideral Time 02h 19m 20s

J2000

Right Ascension 04h 38m 10s

Declination -14° 18’ 14”

Galactic Coordinates

Galactic Longitude 211.32°

Galactic Latitude -35.89°

Finder Chart

Simplified finder chart for Sceptrum - 53 Eridani.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.87

Class Giant

Absolute magnitude 1.24

Spectral Type K2III

Color Index (B-V) 1.09

Temperature 4537K

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

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

Star System Properties

Sceptrum is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the Sceptrum double sysyem:

Main star magnitude 3.87

Secondary star magnitude 7.27

Magnitude difference 3.4

Separation 0.8 arcsec

Distance, Radial Speed, Proper Motion

Sceptrum is distant 109.25 light years from the Sun and it is moving far from the Sun at the speed of 42 kilometers per second.

Distance (parsec) 33.51

Distance (light year) 109.25

Radial Speed 42 km/s

Proper Motion RA -0.075 arcsec/y

Proper Motion Dec -0.156"/y

Alternative Designations

Proper Name Sceptrum

Flamsteed designation 53 Eridani

Henry Draper Catalogue HD29503

SAO Catalogue SAO149781

Hipparcos Catalogue HIP21594

Durchmusterung Catalogue BD-14 933

Gliese Catalogue Wo 9160 A

FK5 Catalogue 172

Visibility from Your Location

Today's Sceptrum - 53 Eridani rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 104.3° RISE 1:08

Max altitude: 24.3° TRANSIT 5:52

Azimuth: 255.7° SET 10:36

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

Location

Other stars in Eridanus