太阳黑子#1093 (12.08.2010)

[universe24]

TOA150（望远镜） + 4x powermate（增焦镜） + CaK filter（滤镜） + SKY-nyx 2-1M（相机）

拍摄了11段avi片，只有一段较好的...

[社長]

Chin兄用什麼軟件疊加的? Avistack 或 Registax?

對這些米粒組織很有興趣，我的Cak買回來只看過兩眼但沒用來拍過.....

[universe24]

是使用Registax叠加的，对AVistack还不是很了解，所以暂时没有打算使用。

社长指的CaK应该是Lunt的吧，是时候拿出来玩了。
话说回来，其实在CaK滤镜下，不应该明显看见米粒组织的，因为CaK的吸收线中心是从色球层发出，所以我还在懊恼着为何使用Daystar的CaK会拍摄出那样的太阳。

[社長]

是使用Registax叠加的，对AVistack还不是很了解，所以暂时没有打算使用。

社长指的CaK应该是Lunt的吧，是时候拿出来玩了。
话说回来，其实在CaK滤镜下，不应该明显看见米粒组织的，因为CaK的吸收线中心是从色球层发出，所以我还在懊恼着为何使用Daystar的CaK会拍摄出那样的太阳。

那不是一舉兩得嗎?

[David]

Fantastic details! I wish I can take a CaK image like that some time.

I like CaK images. They look a bit like white light images but have a more 'exotic' feel.

[universe24]

那不是一舉兩得嗎?

当时会想到使用Daystar的CaK，就是因其一举两得的可能性，但如今好像只能一举而不能两得。
CaK能够让我们看见色球与光球间的温度变化，尤其在黑子附近，更是可以同时看见黑子及白斑，但目前的照片才显示了黑子而没有凸现白斑，令我怀疑是否虑镜在某个波长漏光了...。

David, we looking forward to Lunt to produce a large aperture CaK telescope...hopefully Lunt can come out something like that...

[社長]

那不是一舉兩得嗎?

当时会想到使用Daystar的CaK，就是因其一举两得的可能性，但如今好像只能一举而不能两得。
CaK能够让我们看见色球与光球间的温度变化，尤其在黑子附近，更是可以同时看见黑子及白斑，但目前的照片才显示了黑子而没有凸现白斑，令我怀疑是否虑镜在某个波长漏光了...。

David, we looking forward to Lunt to produce a large aperture CaK telescope...hopefully Lunt can come out something like that...

I still have a lot to learn in solar observation....

The Cak module from Lunt can handle up to 100mm telescope for visual observation, for photography, could be even larger.

now I am heading South on highway in Taiwan.

[universe24]

I still have a lot to learn in solar observation....

The Cak module from Lunt can handle up to 100mm telescope for visual observation, for photography, could be even larger.

now I am heading South on highway in Taiwan.

I have been planning to put the CaK module from Lunt on the TOA150 for full aperture imaging. Hopefully the module not get damage.
In fact, my Daystar setup also without any ordinary solar filter applied in front of the TOA150.

[David]

I have been planning to put the CaK module from Lunt on the TOA150 for full aperture imaging. Hopefully the module not get damage.
In fact, my Daystar setup also without any ordinary solar filter applied in front of the TOA150.

The LS152T can be used for CaK imaging if I buy a CaK module to fit into it. However, it may be possible that the objective is not that well-corrected at the CaK wavelength. So I am still thinking about what I should do.

[社長]

I have been planning to put the CaK module from Lunt on the TOA150 for full aperture imaging. Hopefully the module not get damage.
In fact, my Daystar setup also without any ordinary solar filter applied in front of the TOA150.

The LS152T can be used for CaK imaging if I buy a CaK module to fit into it. However, it may be possible that the objective is not that well-corrected at the CaK wavelength. So I am still thinking about what I should do.

we may do a star test to evaluate that, of course bigger aperture does have advantage of shorter exposure.