土產深空天體影集!

[Eddy So]

[anyone]

M13 正！

[syyuen168]

x2

M13 正！

[cwlam]

I like M51...

[Subaru]

有外國的天文學家於5月31日到6月2日在M51影到一粒14等的星: PSN J13303600+4706330

但在我於5月28日14:36-16:33UT拍的M51並未影到這顆星:


觀看IAU的報告, 在5月30日拍的也未有: http://www.cbat.eps.harvard.edu/unconf/ ... 06330.html

相信這顆超新星是在5月31日爆發的.

[anguslau]

I was testing my setup for field flatness on 30-May and took a couple of shots at M51 that night. Despite the poor quality of the images, they clearly did not show the supernova at that time (30-May, ~14:14 UT). Below is a cropped single 5m L channel exposure on the subject.

[Subaru]

I was testing my setup for field flatness on 30-May and took a couple of shots at M51 that night. Despite the poor quality of the images, they clearly did not show the supernova at that time (30-May, ~14:14 UT). Below is a cropped single 5m L channel exposure on the subject.

So, I believe the supernova should outburst on 31st May. Let's see if any other imager record this event.

[PeterPeter]

二張全片幅的M13和M51都勁正 [想入非非]

粒新星是在相中那一位置?

[Subaru]

二張全片幅的M13和M51都勁正 [想入非非]

粒新星是在相中那一位置?

我影果陣粒超新星未爆, 位置可參考: http://www.hkastroforum.net/viewtopic.php?p=221287

[Subaru]

人馬座M20三葉星雲:

2011年7月2日, ε-180ED, QHY8 CCD, 300s x 2, EM200赤道儀, Off-axis guider + QHY5 + PHD自動追蹤, 大氣透明度8/10, 氣温約28度, 濕度約90%, 攝於大嶼山.

星期六晚雲來雲往, 只能把握到個天開了的十零分鐘, 影到兩張5分鍾, s/n ratio唔夠高.

[PeterPeter]

勁靚呀

圖片是直出或經過剪裁呢

[Subaru]

勁靚呀

圖片是直出或經過剪裁呢

基本上係full frame, 只係crop咗最邊的幾行裁咗d疊相的黑邊.

[anyone]

勁靚呀

圖片是直出或經過剪裁呢

X 2 !

[Subaru]

天鵝座面紗星雲NGC6960:

2011年7月8日, ε-180ED, QHY8 CCD, 600s x 7, EM200赤道儀, Off-axis guider + QHY5 + PHD自動追蹤, 大氣透明度: 5/10, 氣温約27度, 濕度約86%, 攝於西貢.

昨晚高空有薄雲, 估唔到都可以出個片面紗星雲.

[noodle]

果然系勤有功