A-type star · white star

HR 821

330 lybrightness mag 6.15A2V

Also catalogued as HD 17254 · HIP 12775

9,145 K

temperature

6.15

apparent magnitude

30.99× ☉

luminosity vs Sun

A2V

spectral type

Distance & comparison with our Sun

330 years

at light speed from Earth

1.58×

as hot as the Sun

30.99×

the Sun's light output

1.12

absolute magnitude

Explore from here · roam the neighborhood

HR 821A-type

Sky regionHorologiumthis direction

Nearest stars

HR 1090 →47 ly apart
Psi Phe →61 ly apart
HR 1169 →65 ly apart
HR 1227 →69 ly apart
HR 636 →72 ly apart
HD 13218 →73 ly apart

Bright stars in Horologium

Alp Hor →mag 3.9
Del Hor →mag 4.9
Bet Hor →mag 5.0
Mu Hor →mag 5.1
Zet Hor →mag 5.2
Nu Hor →mag 5.3
Eta Hor →mag 5.3
Lam Hor →mag 5.4

Can you see it tonight?

BINOCULARS NEEDED

Brightness mag 6.2To see it 50 mm binocularsLook toward Horologium

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.