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Bill W
登録日: 2012.02.13 記事: 182 所在地: Glasgow
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日時: Fri Dec 02, 2016 1:30 am 記事の件名: |
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Hi Koji,
That's a great image. 1st, 2nd AND 3rd order!
I've had a few nice spectra that I'll need to post. I have one that is proving difficult to reduce. The lines seem quite unusual. I cannot fit the usual lines so it is an odd one.
Regards,
Bill.
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前田
登録日: 2004.09.01 記事: 2759 所在地: Miyazai JAPAN (E131.4, N31.8)
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日時: Sat Dec 03, 2016 2:35 am 記事の件名: today's fireball |
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Hi Bill,
Thank you for your reply. I’m interesting you spectra.
After you analyzed the meteor spectra, please show the spectra.
I captured a cute fireball about one hour ago.
It may be NTA, and the brightness is -4.2 mag.
説明: |
EOS6D + 35mm F1.4 + 600 gr./mm VIS grating
HD 30p
The brightest star is alpha CMa. |
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最終編集者 前田 [ Sat Dec 17, 2016 12:09 pm ], 編集回数 1 回 |
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geosweiningen
登録日: 2013.10.31 記事: 39 所在地: Val Terbi, Switzerland
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日時: Wed Dec 07, 2016 6:37 am 記事の件名: b/w camera for meteor spectroscopy |
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Dear all,
Meanwhile I made my first meteor spectra too. Currently I work with the Sony a7s. The color camera has some drawbacks while using it for spectroscopy. Therefore (specific spectral sensitivity, Bayer matrix) , I am looking for a comparable B/W camera, which could be used as a standard camera for meteor spectroscopy. It should be able to capture at least in HD. Best 4K. Does anyone maybe know such a B/W HD camera?
I would be happy about all recommendations.
Thank you for your inputs and best regards.
Roger
_________________ Val Terbi, Switzerland
http://www.ogvt.org |
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geosweiningen
登録日: 2013.10.31 記事: 39 所在地: Val Terbi, Switzerland
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日時: Wed Dec 07, 2016 6:38 am 記事の件名: b/w camera for meteor spectroscopy |
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Dear all,
Meanwhile I made my first meteor spectra too. Currently I work with the Sony a7s. The color camera has some drawbacks while using it for spectroscopy (specific spectral sensitivity, Bayer matrix). Therefore, I am looking for a comparable B/W camera, which could be used as a standard camera for meteor spectroscopy. It should be able to capture at least in HD. Best 4K. Does anyone maybe know such a B/W HD camera?
I would be happy about all recommendations.
Thank you for your inputs and best regards.
Roger
_________________ Val Terbi, Switzerland
http://www.ogvt.org |
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前田
登録日: 2004.09.01 記事: 2759 所在地: Miyazai JAPAN (E131.4, N31.8)
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日時: Fri Dec 09, 2016 12:31 am 記事の件名: |
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Dear Roger,
The topic is always talked about at the Japanese board in the BBS. But a clear resolution has not found yet in Japan.
We must wait for a new product to be released.
best regards,
Koji Maeda
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Bill W
登録日: 2012.02.13 記事: 182 所在地: Glasgow
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日時: Sun Dec 11, 2016 2:47 am 記事の件名: |
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Hi All,
A while back I wrote to the WATEC company asking if they'd be making an HD type camera.
Sadly the reply said no, not at the moment
There are however several manufacturers that make HD mono cameras, Imaging Source etc but I have found none as good as the Watec for meteor work.
Hopefully one day Watec will produce something that will carry on the revolution! )
cheers,
Bill.
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前田
登録日: 2004.09.01 記事: 2759 所在地: Miyazai JAPAN (E131.4, N31.8)
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日時: Sun Dec 11, 2016 3:53 pm 記事の件名: GEM |
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Hi all,
Geminids shower has become active. I got the fireball this morning with moon and cloud. The spectrum is not disturbed from there strongly.
thanks,
Koji
説明: |
SONY a7s + 24 mm + 600 grooves grating
GEM mag.-3, Dur. 1.2s |
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最終編集者 前田 [ Sun Dec 11, 2016 11:16 pm ], 編集回数 1 回 |
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geosweiningen
登録日: 2013.10.31 記事: 39 所在地: Val Terbi, Switzerland
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前田
登録日: 2004.09.01 記事: 2759 所在地: Miyazai JAPAN (E131.4, N31.8)
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日時: Sun Dec 11, 2016 11:33 pm 記事の件名: |
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Hi, Roger
It is a good NTA spectrum. I captured some spectra of NTA in this year, too. Also, please upload if a clean spectrum can be taken.
I am happy that I saw the 4K spectrum for the first time except mine.
I fixed ISO 25600 regardless of the moon and the weather in my system。
Koji
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geosweiningen
登録日: 2013.10.31 記事: 39 所在地: Val Terbi, Switzerland
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前田
登録日: 2004.09.01 記事: 2759 所在地: Miyazai JAPAN (E131.4, N31.8)
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日時: Sat Dec 17, 2016 12:06 pm 記事の件名: Early X’mas gift |
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Hi all,
I captured an excellent spectrum this morning. The duration is more than 10 sec. within the video field. The brightness was mag. -2.3. The body split in the last part of the path. The luminescent lines were bright Na and faint Fe’s.
Roger,
I expect your first light of 4K spectrum.
cheers,
Koji
説明: |
SONY a7s + 24 mm + 600 grooves grating |
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38.55 KB |
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説明: |
from 4K 30p
The original file size is 6.3GB!! |
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ファイル名: |
M20161217_045439_JPMZ1_HE.mp4 |
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2.4 MB |
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149 回 |
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Jakub Koukal
登録日: 2015.10.31 記事: 3
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日時: Mon Dec 19, 2016 8:08 am 記事の件名: PointGrey |
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Hi all, first spectrum which was captured with our new system - PointGrey Grasshoper3 GS3-U3-32S4M-C with 1000 lines/mm and 6 mm lens (60 deg FOV). Resolution of first order is now 0.48 nm/px. And of course one picture of our new system on Teide observatory....
Image of fireball spectrum from second station (La Palma)
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12669 所在地: 139.67E 35.65N
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日時: Mon Dec 19, 2016 3:55 pm 記事の件名: Re: PointGrey |
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Jakub Koukal wrote: | PointGrey Grasshoper3 GS3-U3-32S4M-C with 1000 lines/mm and 6 mm lens (60 deg FOV). Resolution of first order is now 0.48 nm/px |
Wow It is promising
congratulations!
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前田
登録日: 2004.09.01 記事: 2759 所在地: Miyazai JAPAN (E131.4, N31.8)
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日時: Wed Dec 21, 2016 10:31 pm 記事の件名: Re: PointGrey |
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Dear Jakub Koukal,
How wonderful the spectrum and lobservation site are !
Your system, high number of groves and short focal length is interesting.
Koji
最終編集者 前田 [ Wed Dec 28, 2016 12:28 am ], 編集回数 1 回 |
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前田
登録日: 2004.09.01 記事: 2759 所在地: Miyazai JAPAN (E131.4, N31.8)
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日時: Sun Dec 25, 2016 5:45 pm 記事の件名: Higher resolution spectrum |
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Hi all,
I tried to take images of higher resolution spectrum with a longer focal length lens yesterday. I could get a good spectrum fortunately. Na doublet and Mg triplet lines are good resolved.
thanks,
Koji
説明: |
SONY a7s + 85 mm + 600 grooves grating , 4K 30p
This is the first order spectrum. |
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54.01 KB |
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6228 回 |
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