We use cookies to deliver essential features and to measure their performance. Learn more.
Help us keep TheSkyLive 100% free & ads-free, donate now!
Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:06 
Transit: 12:13 
Sunset: 17:21
wb_twilight   (Astronomical Twilight)  
What's Visible Now • Tonight Timeline
Search  close
All Constellations » Vela » 

HR4221

Below the horizon.  Never rises today
Alt: -38.15°   Az: 136.35°   Direction: South-East

HR4221 is a variable giant star of spectral class B8 in the constellation of Vela.

HR4221 visual magnitude is 5.23. Because of its faintness, HR4221 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 HR4221 star
DSS2 image of HR4221. The red arrow shows the motion of HR4221 during the next 10000 years (-2.67 arcmin in Right Ascension and -0.33 arcmin in declination);

Celestial Coordinates

Apparent

10h 47m 58s
-56° 53’ 24”
18h 25m 26s
05h 13m 25s

J2000

10h 46m 57s
-56° 45’ 25”

Galactic Coordinates

286.46°
2.08°

Finder Chart

loader
  Loading map...
Finder chart for HR4221.

Magnitude, Color, Spectral Class

5.23
Giant

-0.90
B8III
11247K

The red dot in the diagram below shows where HR4221 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4221. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4221 is distant 547.90 light years from the Sun and it is moving far from the Sun at the speed of 31 kilometers per second.

168.07
547.90
31 km/s
-0.016 arcsec/y
-0.002"/y

Alternative Designations

SAO238468
SAO238468

Visibility from Your Location

HR4221 is currently not visible from Greenwich, UK