恒星スペクトル分類 - INI

[item.o-type]
code=O
slug=o-type
name=O型星
description=最も高温で大質量の青色巨星です。
abundance_percent=<1
color=青色
example_stars=["Zeta Ophiuchi","Lambda Orionis","Theta1 Orionis C"]
lifespan=500万〜600万年
mass_solar_max=150
mass_solar_min=16
mass_solar_typical=30
temperature_max_kelvin=50000
temperature_min_kelvin=28000
temperature_note=一部の準矮星は100,000Kを超えることもある
temperature_typical_kelvin=
mass_jupiter_max=
mass_jupiter_min=
mass_jupiter_typical=
object_type=

[item.b-type]
code=B
slug=b-type
name=B型星
description=高温の青白色の大質量星です。
abundance_percent=0.13
color=青白色
example_stars=["Rigel","Spica","Regulus"]
lifespan=約3億年
mass_solar_max=16
mass_solar_min=2.1
mass_solar_typical=7
temperature_max_kelvin=30000
temperature_min_kelvin=10000
temperature_note=
temperature_typical_kelvin=15000
mass_jupiter_max=
mass_jupiter_min=
mass_jupiter_typical=
object_type=

[item.a-type]
code=A
slug=a-type
name=A型星
description=水素線が最も強い白色星です。
abundance_percent=0.625
color=白色
example_stars=["Sirius A","Vega","Altair","Fomalhaut"]
lifespan=10〜20億年
mass_solar_max=2.1
mass_solar_min=1.4
mass_solar_typical=1.7
temperature_max_kelvin=10000
temperature_min_kelvin=7400
temperature_note=
temperature_typical_kelvin=8500
mass_jupiter_max=
mass_jupiter_min=
mass_jupiter_typical=
object_type=

[item.f-type]
code=F
slug=f-type
name=F型星
description=黄白色の中間的な温度の星です。
abundance_percent=3
color=黄白色
example_stars=["Procyon A","Polaris Aa","Canopus"]
lifespan=40〜80億年
mass_solar_max=1.4
mass_solar_min=1
mass_solar_typical=1.2
temperature_max_kelvin=7500
temperature_min_kelvin=6000
temperature_note=
temperature_typical_kelvin=6700
mass_jupiter_max=
mass_jupiter_min=
mass_jupiter_typical=
object_type=

[item.g-type]
code=G
slug=g-type
name=G型星（黄色矮星）
description=太陽と同じタイプの黄色い主系列星です。
abundance_percent=7.5
color=黄色
example_stars=["Sun","Alpha Centauri A","Tau Ceti","51 Pegasi"]
lifespan=約100億年（太陽質量の場合）
mass_solar_max=1.15
mass_solar_min=0.8
mass_solar_typical=1
temperature_max_kelvin=6000
temperature_min_kelvin=5200
temperature_note=
temperature_typical_kelvin=5778
mass_jupiter_max=
mass_jupiter_min=
mass_jupiter_typical=
object_type=

[item.k-type]
code=K
slug=k-type
name=K型星（オレンジ色矮星）
description=太陽より低温のオレンジ色の主系列星です。
abundance_percent=12
color=オレンジ色
example_stars=["Epsilon Eridani","Alpha Centauri B","61 Cygni A"]
lifespan=170〜700億年
mass_solar_max=0.8
mass_solar_min=0.5
mass_solar_typical=0.65
temperature_max_kelvin=5200
temperature_min_kelvin=3900
temperature_note=
temperature_typical_kelvin=4500
mass_jupiter_max=
mass_jupiter_min=
mass_jupiter_typical=
object_type=

[item.m-type]
code=M
slug=m-type
name=M型星（赤色矮星）
description=最も一般的で長寿命の赤色主系列星です。
abundance_percent=75
color=赤色
example_stars=["Proxima Centauri","Barnard's Star","TRAPPIST-1","Wolf 359"]
lifespan=1兆〜10兆年
mass_solar_max=0.5
mass_solar_min=0.08
mass_solar_typical=0.3
temperature_max_kelvin=3900
temperature_min_kelvin=2400
temperature_note=
temperature_typical_kelvin=3200
mass_jupiter_max=
mass_jupiter_min=
mass_jupiter_typical=
object_type=

[item.l-type]
code=L
slug=l-type
name=L型矮星
description=水と金属水素化物の吸収を示す低温の褐色矮星です。
abundance_percent=
color=暗赤色
example_stars=["2MASS J0523-1403","DENIS-P J1228.2-1547"]
lifespan=
mass_solar_max=
mass_solar_min=
mass_solar_typical=
temperature_max_kelvin=2500
temperature_min_kelvin=1300
temperature_note=
temperature_typical_kelvin=1900
mass_jupiter_max=65
mass_jupiter_min=13
mass_jupiter_typical=30
object_type=褐色矮星または低温星

[item.t-type]
code=T
slug=t-type
name=T型矮星
description=メタン吸収帯を示す低温の褐色矮星です。
abundance_percent=
color=暗紫色/黒色
example_stars=["Gliese 570 D","WISE J0350-5658","2MASS J0559-1404"]
lifespan=
mass_solar_max=
mass_solar_min=
mass_solar_typical=
temperature_max_kelvin=1500
temperature_min_kelvin=600
temperature_note=
temperature_typical_kelvin=1000
mass_jupiter_max=80
mass_jupiter_min=13
mass_jupiter_typical=50
object_type=褐色矮星

[item.y-type]
code=Y
slug=y-type
name=Y型矮星
description=アンモニア吸収を示す最も低温の褐色矮星です。
abundance_percent=
color=黒色（赤外線でのみ検出可能）
example_stars=["WISE J0855-0714","WISE J1828+2650","WISE J1738+2732"]
lifespan=
mass_solar_max=
mass_solar_min=
mass_solar_typical=
temperature_max_kelvin=600
temperature_min_kelvin=200
temperature_note=
temperature_typical_kelvin=400
mass_jupiter_max=80
mass_jupiter_min=13
mass_jupiter_typical=50
object_type=褐色矮星