B-type star · blue-white star

HR 1840

2,381 lybrightness mag 6.33B2IV-V

Also catalogued as HD 36285 · HIP 25786

13,442 K

temperature

6.33

apparent magnitude

1,363× ☉

luminosity vs Sun

B2IV-V

spectral type

Distance & comparison with our Sun

2,381 years

at light speed from Earth

2.33×

as hot as the Sun

1,363×

the Sun's light output

-2.99

absolute magnitude

Explore from here · roam the neighborhood

HR 1840B-type

Sky regionOrionthis direction

Nearest stars

HR 1848 →60 ly apart
Hatysa →96 ly apart
HR 1886 →330 ly apart
Arneb →450 ly apart
36Ups Ori →480 ly apart
55 Eri →520 ly apart

Bright stars in Orion

Hatysa →mag 2.8
Tabit →mag 3.2
28Eta Ori →mag 3.4
Meissa →mag 3.4
20Tau Ori →mag 3.6
3Pi 4Ori →mag 3.7
8Pi 5Ori →mag 3.7
48Sig Ori →mag 3.8

Can you see it tonight?

BINOCULARS NEEDED

Brightness mag 6.3To see it 50 mm binocularsLook toward Orion

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.