K-type star · orange

HR 1721

HR 1721 is an orange in the constellation Columba 497 ly from Earth. Its surface is about 4,721 K, about 0.8 times the Sun's surface temperature, and it shines at 101× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 497 years ago.

497 lybrightness mag 5.75G8III

Also catalogued as HD 34266 · HIP 24426

4,721 K
temperature
5.75
apparent magnitude
101× ☉
luminosity vs Sun
G8III
spectral type
Distance & comparison with our Sun
497 years
at light speed from Earth
0.82×
as hot as the Sun
101×
the Sun's light output
-0.17
absolute magnitude
Explore from here · roam the neighborhood
HR 1721K-type
Sky regionColumbathis direction
StarHR 176631 ly
StarHR 196653 ly
StarHR 200968 ly
StarPhactstar
StarWaznstar
Nearest stars
Bright stars in Columba
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.8To see it no equipment neededLook toward Columba

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.