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天船一

天船一（英仙座η）
η Persei
观测资料
历元 J2000.0
星座 英仙座
星官 胃宿 天船
赤经 02h 50m 41.8s
赤纬 +55° 53' 44"
视星等（V） +3.76
距离 1331 光年
(408 pc)
光谱分类 K3 Ib-IIa
其他命名
Miram, 15 Per, HR 834, HD 17506, FK5 99, SAO 23655

天船一，即英仙座η（η Persei），是一个位于英仙座的双星系统，距离地球约1331光年。

天船一主星是一颗K型超巨星，视星等为+3.76。距离主星28.4角秒有一颗8.5等的伴星。

参考资料

[编辑]
英仙座恒星
拜耳命名
α • β • γ • δ • ε • ζ • η • θ • ι • κ • λ • μ • ν • ξ • ο • π • ρ • σ • τ • φ • χ • ψ • ω • b • c • d • e • f • g • i • k • l • m • n • o • A
佛氏命名
1 • 2 • 3 • 4 (g) • 5 • 7 (χ) • 8 • 9 (i) • 10 • 11 • 12 • 13 (θ) • 14 • 15 (η) • 16 • 17 • 18 (τ) • 20 • 21 • 22 (π) • 23 (γ) • 24 • 25 (ρ) • 26 (β) • 27 (κ) • 28 (ω) • 29 • 30 • 31 • 32 (l) • 33 (α) • 34 • 35 (σ) • 36 • 37 (ψ) • 38 (ο) • 39 (δ) • 40 (o) • 41 (ν) • 42 (n) • 43 (A) • 44 (ζ) • 45 (ε) • 46 (ξ) • 47 (λ) • 48 (c) • 49 • 50 • 51 (μ) • 52 (f) • 53 (d) • 54 • 55 • 56 • 57 (m) • 58 (e) • 59 • 御夫座1
近星
其他
星官天船包括的恒星
正星
增星
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天船一
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