HR3172

Above the horizon. Rise: 3:44 | Tran: 9:39 | Set: 15:34

Alt: 36.40° Az: 198.46° Direction: South-South-West

HR3172 is a hypergiant star of spectral class K0 in the constellation of Monoceros.

HR3172 visual magnitude is 6.41. Because of its faintness, HR3172 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 HR3172. The red arrow shows the motion of HR3172 during the next 10000 years (-3.67 arcmin in Right Ascension and -2.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 08h 07m 05s

Declination -00° 38’ 44”

Hour Angle 00h 59m 04s

Sideral Time 09h 06m 10s

J2000

Right Ascension 08h 05m 49s

Declination -00° 34’ 24”

Galactic Coordinates

Galactic Longitude 222.18°

Galactic Latitude 16.22°

Finder Chart

Simplified finder chart for HR3172.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.41

Class Hypergiant

Absolute magnitude -0.29

Spectral Type K0

Color Index (B-V) 1.05

Temperature 4626K

The red dot in the diagram below shows where HR3172 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3172. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR3172 is distant 711.79 light years from the Sun and it is moving far from the Sun at the speed of 34 kilometers per second.

Distance (parsec) 218.34

Distance (light year) 711.79

Radial Speed 34 km/s

Proper Motion RA -0.022 arcsec/y

Proper Motion Dec -0.013"/y

Alternative Designations

Henry Draper Catalogue HD66950

SAO Catalogue SAO135488

Hipparcos Catalogue HIP39625

Durchmusterung Catalogue BD-00 1903

Visibility from Your Location

Today's HR3172 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 90.6° RISE 3:44

Max altitude: 37.9° TRANSIT 9:39

Azimuth: 269.4° SET 15:34

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

Location

Other stars in Monoceros