Alkes - α Crateris (alpha Crateris)

Below the horizon. Rise: 15:42 | Tran: 20:02 | Set: 0:21

Alt: -55.16° Az: 336.38° Direction: North-North-West

Alkes, also designated as α Crateris (alpha Crateris), is a hypergiant star of spectral class K0 in the constellation of Crater.

Alkes visual magnitude is 4.08. Because of its moderate brightness, Alkes 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.

Image of Alkes - α Crateris (alpha Crateris) star

DSS2 image of Alkes. The red arrow shows the motion of Alkes during the next 1000 years (-7.67 arcmin in Right Ascension and 2.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 11h 01m 01s

Declination -18° 26’ 07”

Hour Angle 11h 04m 09s

Sidereal Time 22h 05m 11s

J2000

Right Ascension 10h 59m 46s

Declination -18° 17’ 56”

Galactic Coordinates

Galactic Longitude 269.06°

Galactic Latitude 37.12°

Finder Chart

Loading map...

Finder chart for Alkes - α Crateris (alpha Crateris).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.08

Class Hypergiant

Absolute magnitude 0.44

Spectral Type K0III

Color Index (B-V) 1.09

Temperature 4537K

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

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

Distance, Radial Speed, Proper Motion

Alkes is distant 174.24 light years from the Sun and it is moving far from the Sun at the speed of 47 kilometers per second.

Distance (parsec) 53.45

Distance (light year) 174.24

Radial Speed 47 km/s

Proper Motion RA -0.46 arcsec/y

Proper Motion Dec 0.13"/y

Alternative Designations

Proper Name Alkes

Bayer designation α Crateris
(alpha Crateris)

Flamsteed designation 7 Crateris

Henry Draper Catalogue HD95272

SAO Catalogue SAO156375

Hipparcos Catalogue HIP53740

Durchmusterung Catalogue BD-17 3273

FK5 Catalogue 1283

Visibility from Your Location

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

Azimuth: 108.4° RISE 15:42

Max altitude: 20.1° TRANSIT 20:02

Azimuth: 251.6° SET 0:21

Set Location

Other stars in Crater