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landscape astrophotography stacking

DeepSkyStacker is a very useful too

you can download here.

What is light frames, dark frames, flat frames, offset frames etc

this is stacking settings i use




here is my stack output of Ursa Major, Draco and Ursa Minor






annotation using online astrometry upload
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Ngo ~ "N-gaw" Mui ~ "Moo-ee" Ngo ~ "N-gaw" Mui ~ "Moo-ee" Ngo ~ "N-gaw" Mui ~ "Moo-ee" Ngo (N-gaw) ,  Mui  (Moo-ee )  Cilantro Ngo Gai (N-gaw guy), Mui Tau (Moo-ee Tao), Ngo Tau (N-gaw Tao)   Mexican Coriander,  Sawtooth Coriander, Culantro 　　 娥女帝(拼音), 刺芹 　　特徵：娥女帝是短株形的植物，氣味清淡，葉邊呈鋸齒形，十分容易辨認。來源地：越南。 功效：和白夏差不多，娥女帝亦有祛濕、解毒及驅風的療效。建議食法： Pho,  (Bánh Xeò) 越南煎餅, 炒菜,湯,咖哩 Ngo Gai ~ "N-gaw guy" Mui Tau ~ "Moo-ee Tao" Ngo Tau ~ "N-gaw Tao" - See more at: http://vietworldkitchen.typepad.com/blog/vietnamese-herb-primer.html#sthash.I9rzkzwI.dpuf Rau Ram (Rau Rahm) Vietnam Coriander, Laksa Leaf, "Vietnamese mint(actually not a mint)" Peppery, quite spicy. In salad Hung (Hoong), , Hung Lang (Hoong Lang) Spearmint.  Vietnamese coriander Hung Lui (Hoong Lou-ee), Hung Diu(Hoong Zee-ew) round mint used in salad Hung Cay (Hoong Kay) Mint Rau Que, Hung Que (H...
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