30 Ophiuchi
30 Ophiuchi is a single star in the equatorial constellation of Ophiuchus, and figures 0.99° east (specifically E½S) of the heart of cluster Messier 10. It is visible to the naked eye as a faint, orange-hued point of light with an apparent visual magnitude of 4.82. The distance to this star is approximately 350 light years based on parallax. Its present motion is, net, one of approaching rather than parting, at −6.7 km/s, its "radial velocity". The primary presents with two visual companions: B, at magnitude 9.71 and separation 99.8″, and C, at magnitude 8.75 and separation 220.9″ (3′ 40.9″).
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30 Ophiuchi
30 Ophiuchi is a single star in the equatorial constellation of Ophiuchus, and figures 0.99° east (specifically E½S) of the heart of cluster Messier 10. It is visible to the naked eye as a faint, orange-hued point of light with an apparent visual magnitude of 4.82. The distance to this star is approximately 350 light years based on parallax. Its present motion is, net, one of approaching rather than parting, at −6.7 km/s, its "radial velocity". The primary presents with two visual companions: B, at magnitude 9.71 and separation 99.8″, and C, at magnitude 8.75 and separation 220.9″ (3′ 40.9″).
has abstract
30 Ophiuchi is a single star i ...... separation 220.9″ (3′ 40.9″).
@en
蛇夫座30，又名BD-04 4215，HD 153687、S ...... 6h 55m 47.1s，赤緯-4° 22.18′ 22″。
@zh
Wikipage page ID
38,068,418
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1,013,766,176
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absmag v
−0.65
@en
appmag v
b-v
+1.48
@en
class
K4III
@en
constell
epoch
J2000
@en
gravity
metal fe
−0.03
@en
p error
parallax
prop mo dec
−78.09
@en
prop mo ra
−39.13
@en
radial v
−6.70
@en
rotational velocity
u-b
+1.80
@en
wikiPageUsesTemplate
subject
hypernym
comment
30 Ophiuchi is a single star i ...... separation 220.9″ (3′ 40.9″).
@en
蛇夫座30，又名BD-04 4215，HD 153687、S ...... 6h 55m 47.1s，赤緯-4° 22.18′ 22″。
@zh
label
30 Ophiuchi
@en
30 Ophiuchi
@sv
車肆增二
@zh