B-type star · blue-white star

HR 144

HR 144 is a blue-white star in the constellation Cassiopeia 536 ly from Earth. Its surface is about 11,539 K, about 2.0 times the Sun's surface temperature, and it shines at 219× the Sun's brightness. At magnitude 5.1 it is bright enough to see with the naked eye; the light you see left it 536 years ago.

536 lybrightness mag 5.08B7III

Also catalogued as HD 3240 · HIP 2854

11,539 K

temperature

5.08

apparent magnitude

219× ☉

luminosity vs Sun

B7III

spectral type

Distance & comparison with our Sun

536 years

at light speed from Earth

2.00×

as hot as the Sun

219×

the Sun's light output

-1.00

absolute magnitude

Explore from here · roam the neighborhood

HR 144B-type

Sky regionCassiopeiathis direction

Nearest stars

Bright stars in Cassiopeia

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 5.1To see it no equipment neededLook toward Cassiopeia

Star data from the HYG database v4.2 (Astronexus, CC BY-SA 4.0). Temperature and colour computed by gravityfinder from the B-V colour index; the illustration is generated from that temperature, not a photograph.