B-type star · blue-white star

25 Cyg

1,320 lybrightness mag 5.15B3IV

Also catalogued as HR 7647 · HD 189687 · HIP 98425

12,159 K

temperature

5.15

apparent magnitude

1,244× ☉

luminosity vs Sun

B3IV

spectral type

Distance & comparison with our Sun

1,320 years

at light speed from Earth

2.11×

as hot as the Sun

1,244×

the Sun's light output

-2.89

absolute magnitude

Explore from here · roam the neighborhood

25 CygB-type

Sky regionCygnusthis direction

Nearest stars

HD 186506 →100 ly apart
HR 7807 →120 ly apart
HR 7606 →120 ly apart
HR 7642 →120 ly apart
22 Cyg →130 ly apart
HR 7734 →130 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 5.2To 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.