User Constantthin

17 votes

7 answers

5k views

Why would the side of the moon that faces earth be as dark as the far side of the moon?

the-moon albedo

asked Feb 7, 2021 at 4:47

16 votes

1 answer

3k views

How many times brighter would full-earth-shine appear to people standing on the moon, than full-moon-shine does to people on earth?

the-moon albedo

asked Feb 8, 2021 at 5:57

12 votes

4 answers

3k views

Could Neptune be viewed with the naked eye from Uranus?

planet distances apparent-magnitude neptune uranus

asked Oct 31, 2021 at 2:24

7 votes

2 answers

702 views

Does lack of atmosphere on the moon make earth-shine more, or less, bright?

the-moon albedo

asked Feb 9, 2021 at 14:25

4 votes

1 answer

147 views

How much mass is lost in the red giant phase of a sun?

the-sun red-giant mass-loss

asked Nov 3, 2021 at 6:57

2 votes

1 answer

92 views

Does a red giant star produce more stellar wind than a yellow star?

solar-wind red-giant

asked Nov 3, 2021 at 9:51

2 votes

0 answers

134 views

How can Bond Albedo be greater than Geometric Albedo?

albedo

asked Feb 20, 2021 at 5:35

2 votes

2 answers

151 views

Do the earth and the moon reflect the different fractions of total solar radiation proportionally?

the-moon earth albedo

asked Feb 22, 2021 at 10:49

1 vote

0 answers

182 views

How is bond albedo calculated?

earth albedo

asked Feb 21, 2021 at 13:30

1 vote

2 answers

59 views

Which unit is most suitable in comparing needed light intensity for night reading on the Moon, vs on Earth?

the-moon earth visible-light

asked Feb 18, 2021 at 22:46

0 votes

1 answer

101 views

How can the author of this article conclude that earth-shine on the moon is 100 times brighter than moon-shine on earth? [duplicate]

the-moon earth brightness visible-light

asked Feb 19, 2021 at 13:00

0 votes

0 answers

103 views

What is the highest albedo of the earth's surface facing the sun ever measured?

earth albedo

asked Feb 20, 2021 at 7:49

0 votes

1 answer

109 views

Why does apparent magnitudes get increased fourfold when distances get halved, instead of simply getting doubled?

star distances apparent-magnitude

asked Nov 5, 2021 at 2:19

0 votes

1 answer

123 views

How does one find out how often planets align?

planet alignment

asked Nov 6, 2021 at 23:46

0 votes

1 answer

80 views

Is subtracting one apparent magnitude from another ever practical?

apparent-magnitude

asked Nov 9, 2021 at 9:00

0 votes

1 answer

127 views

Will the planets be pushed outwards when the sun goes red giant?

neptune red-giant uranus

asked Nov 1, 2021 at 4:45

-2 votes

1 answer

260 views

What is Saturn’s apparent magnitude at its brightest when viewed from Uranus?

distances saturn apparent-magnitude uranus

asked Nov 11, 2021 at 5:53

-4 votes

2 answers

132 views

What is Jupiter's apparent magnitude as watched from Uranus?

jupiter apparent-magnitude uranus

asked Nov 27, 2021 at 14:54

-5 votes

2 answers

124 views

What is 5 in 5log10 the value of?

apparent-magnitude absolute-magnitude

asked Nov 9, 2021 at 14:55

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19 Questions

Why would the side of the moon that faces earth be as dark as the far side of the moon?

How many times brighter would full-earth-shine appear to people standing on the moon, than full-moon-shine does to people on earth?

Could Neptune be viewed with the naked eye from Uranus?

Does lack of atmosphere on the moon make earth-shine more, or less, bright?

How much mass is lost in the red giant phase of a sun?

Does a red giant star produce more stellar wind than a yellow star?

How can Bond Albedo be greater than Geometric Albedo?

Do the earth and the moon reflect the different fractions of total solar radiation proportionally?

How is bond albedo calculated?

Which unit is most suitable in comparing needed light intensity for night reading on the Moon, vs on Earth?

How can the author of this article conclude that earth-shine on the moon is 100 times brighter than moon-shine on earth? [duplicate]

What is the highest albedo of the earth's surface facing the sun ever measured?

Why does apparent magnitudes get increased fourfold when distances get halved, instead of simply getting doubled?

How does one find out how often planets align?

Is subtracting one apparent magnitude from another ever practical?

Will the planets be pushed outwards when the sun goes red giant?

What is Saturn’s apparent magnitude at its brightest when viewed from Uranus?

What is Jupiter's apparent magnitude as watched from Uranus?

What is 5 in 5log10 the value of?