B-type star · blue-white star

66Ups Cyg

642 lybrightness mag 4.41B2Vne

Also catalogued as HR 8146 · HD 202904 · HIP 105138

11,624 K

temperature

4.41

apparent magnitude

581× ☉

luminosity vs Sun

B2Vne

spectral type

Distance & comparison with our Sun

642 years

at light speed from Earth

2.01×

as hot as the Sun

581×

the Sun's light output

-2.06

absolute magnitude

Explore from here · roam the neighborhood

66Ups CygB-type

Sky regionCygnusthis direction

Nearest stars

HR 8169 →43 ly apart
HR 8051 →43 ly apart
HR 8005 →70 ly apart
HR 8306 →89 ly apart
HR 8336 →92 ly apart
HR 8063 →95 ly apart

Bright stars in Cygnus

Sadr →mag 2.2
Aljanah →mag 2.5
Fawaris →mag 2.9
64Zet Cyg →mag 3.2
62Xi Cyg →mag 3.7
65Tau Cyg →mag 3.7
10Iot2Cyg →mag 3.8
1Kap Cyg →mag 3.8

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 4.4To see it no equipment neededLook toward Cygnus

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.