You searched for: astronomers (Engelska - Kinyarwanda)

this retrograde motion of the planets puzzled ancient greek astronomers, and was one reason why they named these bodies planets which in greek means wanderers.
bya i, na rimwe impamvu & cyitwa: in.

astronomers prefer to express star colors in terms of a difference in magnitudes, rather than a ratio of fluxes. therefore, going back to blue bellatrix we have a color index equal to
kuri star amabara in bya a ikinyuranyo/ itandukaniro in, a bya., inyuma kuri ubururu twebwe a ibara: umubarendanga bingana kuri

astronomers use flux to denote the apparent brightness of a celestial body. the apparent brightness is defined as the amount of light received from a star above the earth atmosphere passing through a unit area each second. therefore, the apparent brightness is simply the flux we receive from a star.
koresha kuri i urumuri bya a umubiri. urumuri ni nka i i igiteranyo bya kimurika byakiriwe kuva: a star hejuru i gihinguranya a igice: umwanya isegonda., i urumuri ni i twebwe akira kuva: a star.

& kstars; is pretty accurate, but it is not (yet) as precise as it can possibly be. the problem with high-precision calculations is that you start having to deal with a large number of complicating factors. if you are not a professional astronomer, you will probably never have a problem with its accuracy or precision.
& kstars; ni, ni oya () nka nka. na: ejuru - ni tangira & vendorshortname; kuri na: a kinini umubare bya. oya a, nta na rimwe a na: cyangwa.