SUNSPOT

Last week, I observed sunspots two days through black glasses.
The first day, I found two big sunspots. They were in the lower right from the center.
On the next day, when I observed it, they were in the upper right from the center.
I was very surprised because I thought the sunspots move horizontally.
But, I was wrong. It seemed they moved vertical.
I wonder how the axis of solar points?

Thank you, Ken-san, for a very interesting point.

If the apparent movement was horizontally 'wrong',
it could have been explained away by some kind of
optical reason, but a vertical movement would seem
much more difficult to tell why, unless the sun
rotates on a plane at right angles to that of the
earth and other planets.

Could anyone please explain what is happening here?

〉Last week, I observed sunspots two days through black glasses.
〉The first day, I found two big sunspots. They were in the lower right from the center.
〉On the next day, when I observed it, they were in the upper right from the center.
〉I was very surprised because I thought the sunspots move horizontally.
〉But, I was wrong. It seemed they moved vertical.
〉I wonder how the axis of solar points?

Hi, Ken and Kunihide

I think those two spot was not identical.
it is not same one.
I mean first one disappeared and another appeared on the next day.

If the spot moved to where it seen at the second day, the spot must move at extraordinary high speed.
If it traveled one fourth of circumference of the sun in one day,
The speed calculated as about 46,000 km/h.
# 1,400,000km(diameter of the sun) x 3.14 x 90/360 ÷ 24hour = 46,000 km/h
This sunspot can travel around the earth less than one second.

It is said that short-life Sunspot lives one to two days.
See this website.
[url:http://village.infoweb.ne.jp/~noriyuki/sun.htm]
So, some sunspots could be die on the next day.

and last, Horizontal move maybe come from self-turning but it takes about 25 days for one turn.
It is hard to move such distance in one day even in horizontally.

"けん"さんは[url:]kb:204]で書きました:
〉Last week, I observed sunspots two days through black glasses.
〉The first day, I found two big sunspots. They were in the lower right from the center.
〉On the next day, when I observed it, they were in the upper right from the center.
〉I was very surprised because I thought the sunspots move horizontally.
〉But, I was wrong. It seemed they moved vertical.
〉I wonder how the axis of solar points?