K-type star · orange

21Eta Cyg

135 lybrightness mag 3.89K0IIIvar

Also catalogued as HR 7615 · HD 188947 · HIP 98110

4,698 K

temperature

3.89

apparent magnitude

41.46× ☉

luminosity vs Sun

K0IIIvar

spectral type

Distance & comparison with our Sun

135 years

at light speed from Earth

0.81×

as hot as the Sun

41.46×

the Sun's light output

0.81

absolute magnitude

Explore from here · roam the neighborhood

21Eta CygK-type

Sky regionCygnusthis direction

Nearest stars

29 Cyg →11 ly apart
HD 195690 →23 ly apart
HR 7468 →24 ly apart
17 Lyr →25 ly apart
HR 7253 →29 ly apart
HR 7280 →31 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 3.9To 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.