M-type star · red

HR 256

677 lybrightness mag 6.28M2.5IIIa

Also catalogued as HD 5273 · HIP 4298

3,540 K

temperature

6.28

apparent magnitude

115× ☉

luminosity vs Sun

M2.5IIIa

spectral type

Distance & comparison with our Sun

677 years

at light speed from Earth

0.61×

as hot as the Sun

115×

the Sun's light output

-0.30

absolute magnitude

Explore from here · roam the neighborhood

HR 256M-type

Sky regionCassiopeiathis direction

Nearest stars

22Omi Cas →34 ly apart
42Phi And →53 ly apart
HR 189 →57 ly apart
HR 372 →68 ly apart
HR 355 →68 ly apart
HR 287 →69 ly apart

Bright stars in Cassiopeia

Cih →mag 2.1
Schedar →mag 2.2
Caph →mag 2.3
Ruchbah →mag 2.7
Segin →mag 3.4
Achird →mag 3.5
Fulu →mag 3.7
50 Cas →mag 4.0

Can you see it tonight?

BINOCULARS NEEDED

Brightness mag 6.3To see it 50 mm binocularsLook 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.