HD 177830
HD 177830 is a 7th magnitude binary star system located approximately 205 light-years away in the constellation of Lyra. The primary star is slightly more massive than our Sun, but cooler being a type K star. Therefore, it is a subgiant clearly more evolved than the Sun. In visual light it is four times brighter than the Sun, but because of its distance, about 205 light years, it is not visible to the unaided eye. With binoculars it should be easily visible. The primary star is known to have two extrasolar planets orbiting around it.
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HD 177830
HD 177830 is a 7th magnitude binary star system located approximately 205 light-years away in the constellation of Lyra. The primary star is slightly more massive than our Sun, but cooler being a type K star. Therefore, it is a subgiant clearly more evolved than the Sun. In visual light it is four times brighter than the Sun, but because of its distance, about 205 light years, it is not visible to the unaided eye. With binoculars it should be easily visible. The primary star is known to have two extrasolar planets orbiting around it.
has abstract
HD 177830 c는 거문고자리 방향으로 193광년 ...... 돌고 있는데, 평균 거리는 0.5 천문단위 정도이다.
@ko
HD 177830 is a 7th magnitude b ...... ar planets orbiting around it.
@en
HD 177830 ist ein etwa 190 Lic ...... urde von Vogt et al. entdeckt.
@de
HD 177830 — звезда в созвездии ...... ся, как минимум, одна планета.
@ru
HD 177830是一顆位於天琴座的視星等7等恆星，距離地球 ...... 能用雙筒望遠鏡觀測。 該恆星旁目前已經發現兩顆太陽系外行星。
@zh
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1,014,369,955
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age gyr
appmag v
bibcode
class
K0IV/M4V
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constell
eccentricity
epoch
J2000.0
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exoplanet
b
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c
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gravity
mass
metal fe
p error
parallax
period
radial v
−71.86 ± 0.06
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radius
rotational velocity
semimajor
temperature
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HD 177830 c는 거문고자리 방향으로 193광년 ...... 돌고 있는데, 평균 거리는 0.5 천문단위 정도이다.
@ko
HD 177830 is a 7th magnitude b ...... ar planets orbiting around it.
@en
HD 177830 ist ein etwa 190 Lic ...... urde von Vogt et al. entdeckt.
@de
HD 177830 — звезда в созвездии ...... ся, как минимум, одна планета.
@ru
HD 177830是一顆位於天琴座的視星等7等恆星，距離地球 ...... 能用雙筒望遠鏡觀測。 該恆星旁目前已經發現兩顆太陽系外行星。
@zh
label
HD 177830 c
@ko
HD 177830
@de
HD 177830
@en
HD 177830
@ru
HD 177830
@sv
HD 177830
@zh
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HD177830
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