Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Plandome, United States Plandome, United States  ⓘ
TimezoneAmerica/New_York
Sunrise: 5:24 
Transit: 12:56 
Sunset: 20:28
Search  close
All Constellations » Hydra » 

HR4172

Below the horizon.  Rise: 12:19 | Tran: 17:33 | Set: 22:51
Alt: -33.99°   Az: 76.39°   Direction: South-West

HR4172 is a hypergiant star of spectral class A0 in the constellation of Hydra.

HR4172 visual magnitude is 6.04. Because of its faintness, HR4172 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.

Image of HR4172 star
DSS2 image of HR4172. The red arrow shows the motion of HR4172 during the next 10000 years (-9.50 arcmin in Right Ascension and 0.33 arcmin in declination);

Celestial Coordinates

Apparent

10h 40m 06s
-12° 34’ 36”
15h 42m 37s
02h 22m 43s

J2000

10h 38m 50s
-12° 26’ 36”

Galactic Coordinates

259.53°
39°

Finder Chart

loader
  Loading map...
Finder chart for HR4172.

Magnitude, Color, Spectral Class

6.04
Hypergiant

0.83
A0V
10125K

The red dot in the diagram below shows where HR4172 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4172. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4172 is distant 358.64 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

110.01
358.64
12 km/s
-0.057 arcsec/y
0.002"/y

Alternative Designations

SAO156124
SAO156124

Visibility from Your Location

Today's HR4172 rise, transit and set times from Plandome, United States are the following (all times relative to the local timezone America/New_York):

Azimuth: 102.6°
Max altitude: 36.6°
Azimuth: 257.4°