伴我走人生路 - 2 guns
Re: 伴我走人生路 - U_photoguider
Everything has got ready, and I name this setup as U-photoguider. Just wait for clear and moonless night next month to go for a test.
Re: 伴我走人生路 - 1st autoguided image
昨晚透明度雖好,但仍是有很多飄雲。突然心血上腦,決定試試U-photoguider的單軸自動導星表現,立即拿出相機腳架,快速組裝開工。
Taken with Vixen FL55SS + flattener + 100Da in YL @315mm F5.7
7x180s @iso200, autoguided with Polarie U @photoguider mode in RA direction only
Stacked in DSS without any dark, flat and bias calibrated
Taken with Vixen FL55SS + flattener + 100Da in YL @315mm F5.7
7x180s @iso200, autoguided with Polarie U @photoguider mode in RA direction only
Stacked in DSS without any dark, flat and bias calibrated
Re: 伴我走人生路 - 2nd autoguided image
為了有較低的 thermal noise,買了一個二手彩色冷凍天文相機 071C,打算代替100Da 配合 FL55SS + Polarie U 在本地上山出海和到海外影 wide field。量一量,連導星鏡重 2.5 kg。不過,對比 Polarie U 的重量和體積,攝影系統似乎有點過長;同時,自己設計和製作的平衡套件,承載這套攝影系統,強度有點不夠,不利於物理學上穩定性的要求,看來要再設計過。
Re: 伴我走人生路 - 2nd autoguided image
上兩個星期,終於再有機會進行第二次 autoguiding 測試。可惜,因時間緊迫,對極時 set 錯了日期,誤差角度應多於 1度,造成南北方向飄移頗快。更不幸的,二手 071C 的 sensor 面非常 dirty,雖然做了 flat calibration,有些地方也不能救得到。
Taken with Vixen FL55SS + flattener + 071C in YL @314mm F5.7
15x120s, autoguided with Polarie U in RA direction only
Stacked and processed in PI with dark calibrated
Without flat calibrated
with flat calibrated
Taken with Vixen FL55SS + flattener + 071C in YL @314mm F5.7
15x120s, autoguided with Polarie U in RA direction only
Stacked and processed in PI with dark calibrated
Without flat calibrated
with flat calibrated
誰在線上
正在瀏覽這個版面的使用者:沒有註冊會員 和 4 位訪客