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【单选题】
Ia型超亮度极大时的绝对星等为,在某星系中发现一颗Ia型超,它的视星等为,则该星系到地球的距离为
A.
72kpc
B.
720kpc
C.
7.2Mpc
D.
72Mpc
题目标签:
超新星
绝对星等
视星等
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【填空题】最早的超记录是()
查看完整题目与答案
【简答题】什么是恒星的亮度和光度?什么是视星等和绝对星等?两种星等如何换算?为什么绝大多数恒星的绝对星等高于它们的视星等?1918年天鹰座爆发时,绝对星等M为-8.8m,问在多少秒差距处,看起来像满月(-12.7m)一样明亮?
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【单选题】金星最亮时的视星等是:
A.
-4.22 等
B.
-1.45 等
C.
-12.73 等
D.
-26.74 等
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【单选题】视星等为下列哪个值的恒星最暗( )
A.
19
B.
21
C.
20
D.
18
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【单选题】视星等 接近 零等 的天体是:
A.
太阳
B.
金星
C.
天狼星
D.
织女星
查看完整题目与答案
【单选题】Ia型超亮度极大时的绝对星等为【图片】,在某星系中发现一颗Ia型超,它的视星等为【图片】,则该星系到地球的距离为【图片】
A.
72kpc
B.
720kpc
C.
7.2Mpc
D.
72Mpc
查看完整题目与答案
【单选题】视星等是天文上用来衡量恒星亮度的物理量,规定一等星比六等星亮()倍
A.
10倍
B.
50倍
C.
100倍
D.
1000倍
查看完整题目与答案
【多选题】太阳的视星等为-26.74等,天狼星的视星等为-1.46等,这说明()
A.
太阳的亮度大于天狼星
B.
太阳的发光本领大于天狼星
C.
太阳的距离小于天狼星的距离
D.
太阳的温度高于天狼星
查看完整题目与答案
【单选题】已知恒星1的视星等级m1 = 0.85,绝对视星等级M1 = - 0.75 ,恒星2的视星等m2=0.04,绝对视星等级M2=0.49,若直接观测,则 【 】
A.
恒星 2 比较亮,实际发光恒星 1 比较多 。
B.
恒星 1 比较亮,实际发光也是恒星 1 比较多 。
C.
恒星 2 比较亮,实际发光也是恒星 2 比较多 。
D.
恒星 2 比较亮, 实际两颗星发光一样多。
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【简答题】绝对星等
查看完整题目与答案
【简答题】超
查看完整题目与答案
【单选题】绝对星等是将一颗视星等为m的星移到()的距离时的视星等。
A.
1pc
B.
10pc
C.
100pc
D.
1000pc
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【单选题】目视星等每增加5等,亮度( )
A.
减少100倍
B.
增大100倍
C.
减少5倍
D.
增加5倍
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
相关题目:
【填空题】最早的超记录是()
查看完整题目与答案
【简答题】什么是恒星的亮度和光度?什么是视星等和绝对星等?两种星等如何换算?为什么绝大多数恒星的绝对星等高于它们的视星等?1918年天鹰座爆发时,绝对星等M为-8.8m,问在多少秒差距处,看起来像满月(-12.7m)一样明亮?
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【单选题】金星最亮时的视星等是:
A.
-4.22 等
B.
-1.45 等
C.
-12.73 等
D.
-26.74 等
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【单选题】视星等为下列哪个值的恒星最暗( )
A.
19
B.
21
C.
20
D.
18
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【单选题】视星等 接近 零等 的天体是:
A.
太阳
B.
金星
C.
天狼星
D.
织女星
查看完整题目与答案
【单选题】Ia型超亮度极大时的绝对星等为【图片】,在某星系中发现一颗Ia型超,它的视星等为【图片】,则该星系到地球的距离为【图片】
A.
72kpc
B.
720kpc
C.
7.2Mpc
D.
72Mpc
查看完整题目与答案
【单选题】视星等是天文上用来衡量恒星亮度的物理量,规定一等星比六等星亮()倍
A.
10倍
B.
50倍
C.
100倍
D.
1000倍
查看完整题目与答案
【多选题】太阳的视星等为-26.74等,天狼星的视星等为-1.46等,这说明()
A.
太阳的亮度大于天狼星
B.
太阳的发光本领大于天狼星
C.
太阳的距离小于天狼星的距离
D.
太阳的温度高于天狼星
查看完整题目与答案
【单选题】已知恒星1的视星等级m1 = 0.85,绝对视星等级M1 = - 0.75 ,恒星2的视星等m2=0.04,绝对视星等级M2=0.49,若直接观测,则 【 】
A.
恒星 2 比较亮,实际发光恒星 1 比较多 。
B.
恒星 1 比较亮,实际发光也是恒星 1 比较多 。
C.
恒星 2 比较亮,实际发光也是恒星 2 比较多 。
D.
恒星 2 比较亮, 实际两颗星发光一样多。
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【简答题】绝对星等
查看完整题目与答案
【简答题】超
查看完整题目与答案
【单选题】绝对星等是将一颗视星等为m的星移到()的距离时的视星等。
A.
1pc
B.
10pc
C.
100pc
D.
1000pc
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案
【单选题】目视星等每增加5等,亮度( )
A.
减少100倍
B.
增大100倍
C.
减少5倍
D.
增加5倍
查看完整题目与答案
【简答题】It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does ...
查看完整题目与答案