No sunspot, no problem (20100310)

Observing (Solar) - 白光、Ha、Cak等光譜觀測及拍攝

No sunspot, no problem (20100310)

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David » 2010-03-10, 21:50

The difference between sun-gazing and star-gazing: you never know what you are going to get when you watch the sun.
Taken with DMK41 and LS75F unobstructed.
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20100310.jpg
20100310.jpg (730.74 KiB) 被瀏覽 8211 次
APM 80/480, SW 120mm Equinox, C8, Obsession 18"UC with Argo Navis & StellarCat
Lunt LS60T/CaK, LS152T with DSII
DMK31AF03, DMK21AF04, DBK21AF04
Mark V Binoviewer, Ethos (3.7mm, 6mm, 13mm), 19mm Panoptic, 5mm TMB mono
http://www.imsc.edu.hk/pages/astronomy
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David
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Re: No sunspot, no problem (20100310)

文章willis » 2010-03-10, 22:04

Wow! The image is extremely detail! What scope u are using? How many pieces are there in this Mosaic? Any how many frames are stacked?
Tak FS60C, APM-LOMO 80/480, APM-TMB 105/650, SW Black Diamond 120ED, Borg 125SD, SW 12" Dobs , Lunt LS35T, Lunt LS80T
TMB Super Mono 4mm, Pentax XO 2.5mm, Baader Planetarium 8-24mm, Nagler (2-4mm, 3-6mm, 13mm), Ethos (3.7mm, 6mm, 10mm), Explore Scientific 100º (14mm, 20mm)
DBK 21, DMK 21, DMK 41, DMK 51, ASI 178MC
Nikon D810A, Canon 5D II, Fujifilm X-T10
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Re: No sunspot, no problem (20100310)

文章David » 2010-03-10, 22:16

willis 寫:Wow! The image is extremely detail! What scope u are using? How many pieces are there in this Mosaic? Any how many frames are stacked?


I used APM 80/480 scope. Actually, this is not a mosaic. The DMK41 cannot capture the whole sun. So I let the sun drift a bit so that every part of the sun was captured in at least some parts of the video.

I stack about 700 frames.
APM 80/480, SW 120mm Equinox, C8, Obsession 18"UC with Argo Navis & StellarCat
Lunt LS60T/CaK, LS152T with DSII
DMK31AF03, DMK21AF04, DBK21AF04
Mark V Binoviewer, Ethos (3.7mm, 6mm, 13mm), 19mm Panoptic, 5mm TMB mono
http://www.imsc.edu.hk/pages/astronomy
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David
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Re: No sunspot, no problem (20100310)

文章社長 » 2010-03-10, 23:48

woooow! it's 3D like.

how long is the effective focal length? why you need to stack so many frames? :roll:
兩個天文台 - 白鷺湖天文台、西藏自動化天文觀測站
主鏡 - Officina Stellare 500 口徑f3.8 RiFast攝星儀、APM/TMB 254 f9 APO、SkyWatcher Dob 18、305 f8.5 牛頓鏡、Paramount ME 赤道儀
配件 - 2 full sets of Supermonocentrics、Baader Mark V Binoviewer、Ethos、Canon 5D Mark II Mod、FLI Proline 16803冷凍相機、Mercedes SUV
星河科研社 http://www.astro.hk 電郵 saviofong@astro.hk
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Re: No sunspot, no problem (20100310)

文章David » 2010-03-11, 06:55

社長 寫:woooow! it's 3D like.
how long is the effective focal length? why you need to stack so many frames? :roll:


f is just 480mm. No one frame captures the whole sun. I had to let the sun drift a bit in my video. Therefore, I need to stack lots of frames.
APM 80/480, SW 120mm Equinox, C8, Obsession 18"UC with Argo Navis & StellarCat
Lunt LS60T/CaK, LS152T with DSII
DMK31AF03, DMK21AF04, DBK21AF04
Mark V Binoviewer, Ethos (3.7mm, 6mm, 13mm), 19mm Panoptic, 5mm TMB mono
http://www.imsc.edu.hk/pages/astronomy
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David
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文章: 1270
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Re: No sunspot, no problem (20100310)

文章社長 » 2010-03-11, 09:29

David 寫:
社長 寫:woooow! it's 3D like.
how long is the effective focal length? why you need to stack so many frames? :roll:


f is just 480mm. No one frame captures the whole sun. I had to let the sun drift a bit in my video. Therefore, I need to stack lots of frames.


that's strange, why my exposure through the LS35T (f10) is so short and gain so low (300), so that I just need to stack 10 frames or so, and you need to stack so many even at faster aperture of f6.4? :roll:
兩個天文台 - 白鷺湖天文台、西藏自動化天文觀測站
主鏡 - Officina Stellare 500 口徑f3.8 RiFast攝星儀、APM/TMB 254 f9 APO、SkyWatcher Dob 18、305 f8.5 牛頓鏡、Paramount ME 赤道儀
配件 - 2 full sets of Supermonocentrics、Baader Mark V Binoviewer、Ethos、Canon 5D Mark II Mod、FLI Proline 16803冷凍相機、Mercedes SUV
星河科研社 http://www.astro.hk 電郵 saviofong@astro.hk
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Re: No sunspot, no problem (20100310)

文章Lewis » 2010-03-11, 10:41

Wow .... It seems that sun is on fire. Every time, we see the H-alpha's sun. It looks strange but beautiful.
Money, I need more money. my next target is H-alpha .....
It's beautiful.
:twisted:
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Lewis
 
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Re: No sunspot, no problem (20100310)

文章David » 2010-03-11, 22:02

Lewis 寫:Wow .... It seems that sun is on fire. Every time, we see the H-alpha's sun. It looks strange but beautiful.
Money, I need more money. my next target is H-alpha .....
It's beautiful.
:twisted:


Come to our next solar party. I only need a sunny Saturday morning to make this happen.
APM 80/480, SW 120mm Equinox, C8, Obsession 18"UC with Argo Navis & StellarCat
Lunt LS60T/CaK, LS152T with DSII
DMK31AF03, DMK21AF04, DBK21AF04
Mark V Binoviewer, Ethos (3.7mm, 6mm, 13mm), 19mm Panoptic, 5mm TMB mono
http://www.imsc.edu.hk/pages/astronomy
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David
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文章: 1270
註冊時間: 2010-02-01, 19:33


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