M-type star · red

HR 1720

HR 1720 is a red in the constellation Camelopardalis 2,051 ly from Earth. Its surface is about 3,480 K, about 0.6 times the Sun's surface temperature, and it shines at 1,911× the Sun's brightness. At magnitude 5.6 it is bright enough to see with the naked eye; the light you see left it 2,051 years ago.

2,051 lybrightness mag 5.64K4Iab:

Also catalogued as HD 34255 · HIP 24914

3,480 K
temperature
5.64
apparent magnitude
1,911× ☉
luminosity vs Sun
K4Iab:
spectral type
Distance & comparison with our Sun
2,051 years
at light speed from Earth
0.60×
as hot as the Sun
1,911×
the Sun's light output
-3.35
absolute magnitude
Explore from here · roam the neighborhood
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.6To see it no equipment neededLook toward Camelopardalis

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.