Solar observers (I know that there are now a few more since yesterday), you MUST take a look at the big sunspot. I've just seen it and it is amazing! I hope that the weather is still good enough later today when I have finished my lessons to take some quick shots.
http://www.spaceweather.com/
Big sunspot
yes~~~
今朝同d學生睇，佢地都一眼睇得出o個撻黑子，我搵下搵下又搵到仲有好大片日珥，仲有d佢地話係毛茸茸o既針針，好好玩呀，不過d同事經過望下就話，咪就係一個橙色波波lor......又有兩個學生(佢地已經係專誠返黎試新玩具架喎)初時望望左一陣，覺得冇乜特別，又太熱就走左，miss左好多features....得四個傻仔陪我曬到成點鐘。
所以如果冇人講解，好多人會乜都睇唔到，會覺得"就係咁架咋？"，會覺得曬到乾晒水唔知為乜。真係要有導師教佢地注意邊d地方，初時同佢地搵d features出黎，睇睇下先至會有癮~~
今朝試過LPI影，不過好難對焦，因為一來個mon好難睇，二來未試過影d咁光o既野，個capture software唔知點set d parameter，我估係爆光所以根本睇唔到係咪對到焦。
仲有.....原來日光日白我真係對唔到pole的......
今朝同d學生睇，佢地都一眼睇得出o個撻黑子，我搵下搵下又搵到仲有好大片日珥，仲有d佢地話係毛茸茸o既針針，好好玩呀，不過d同事經過望下就話，咪就係一個橙色波波lor......又有兩個學生(佢地已經係專誠返黎試新玩具架喎)初時望望左一陣，覺得冇乜特別，又太熱就走左，miss左好多features....得四個傻仔陪我曬到成點鐘。
所以如果冇人講解，好多人會乜都睇唔到，會覺得"就係咁架咋？"，會覺得曬到乾晒水唔知為乜。真係要有導師教佢地注意邊d地方，初時同佢地搵d features出黎，睇睇下先至會有癮~~
今朝試過LPI影，不過好難對焦，因為一來個mon好難睇，二來未試過影d咁光o既野，個capture software唔知點set d parameter，我估係爆光所以根本睇唔到係咪對到焦。
仲有.....原來日光日白我真係對唔到pole的......
Yeah! I saw two sunspots in the afternoon. The location is about 4:00 to 5:00. [想入非非] Which was exactly the location of this one:
http://www.spaceweather.com/images2009/ ... sc0dvu3584
I also saw a prominence at about 12:00, which last for about 10 mins. [想入非非] But I am not skillful enough to take photos. [我不依]
http://www.spaceweather.com/images2009/ ... sc0dvu3584
I also saw a prominence at about 12:00, which last for about 10 mins. [想入非非] But I am not skillful enough to take photos. [我不依]
LS100T+2x (f=1600mm) + DMK21 camera. Seeing was simply ugly.
LS100T is compromised in many ways when compared with LS100F. Hence the photo is rather non-uniform and it will take more patience to hide the problems (and I don't have that kind of patience today, especially when seeing is poor.). The advantage of the LS100T scope is that it is very easy to set up. Also, if you are using it for visual only, the non-uniformity is much less noticeable.
LS100T is compromised in many ways when compared with LS100F. Hence the photo is rather non-uniform and it will take more patience to hide the problems (and I don't have that kind of patience today, especially when seeing is poor.). The advantage of the LS100T scope is that it is very easy to set up. Also, if you are using it for visual only, the non-uniformity is much less noticeable.
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Thanks for sharing your first light with students. The comments you got in your school are very similar to mine! If the observation is longer, sometimes students will tell me some change that they can notice ("Sir, there is not only a prominence on the left, there is actually one more near to the top."), and I encourage other students to check others' discovery. It is fun. They are 'monitoring' the sun in real time!xiaoer 寫:真係要有導師教佢地注意邊d地方，初時同佢地搵d features出黎，睇睇下先至會有癮~~
I also saw the sun yesterday but the image was just ugly due to lots of thin clouds around. Sadly, the sunspot is already decaying today.
I very much agree with the point you made above. In fact, telling students what to notice is very important even for other objects, I think. e.g. If no one tells the students what to look for in an image of a moon, then the moon is not worth a second look at all. It becomes boring very quickly. However, if told what to look for, it actually changes every day or even every 30 minutes. There was once when I watched the moon with a young girl with their parents, who were just walking by my set-up on the street. I showed them how to watch the moon for 30 minutes. Durng that time, they saw clearly the change in shadow in Copernicus. They were really seeing sunrise in a distant crater!
最後由 David 於 週三 08 7月, 2009 07:52 編輯，總共編輯了 2 次。
You may not believe it, but LS35F is better at showing prominence than LS100T. I'll show you why on Saturday. Hope that the weather will cooperate.willis 寫:Yeah! I saw two sunspots in the afternoon. The location is about 4:00 to 5:00. [想入非非] Which was exactly the location of this one:
http://www.spaceweather.com/images2009/ ... sc0dvu3584
I also saw a prominence at about 12:00, which last for about 10 mins. [想入非非] But I am not skillful enough to take photos. [我不依]
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