PNV J20233073+2046041 mag 6.8

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PNV J20233073+2046041 mag 6.8

Postby Paolo Berardi » Wed Aug 14, 2013 6:02 pm

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Re: PNV J20233073+2046041 mag 6.8

Postby Paolo Berardi » Wed Aug 14, 2013 7:49 pm

Follow up now!

Image from Koichi Itagaki:
http://www.k-itagaki.jp/images/pnv-del.jpg

Paolo
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Re: PNV J20233073+2046041 mag 6.8

Postby Olivier GARDE » Wed Aug 14, 2013 8:16 pm

I'm on the target now with the eshel...
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Re: PNV J20233073+2046041 mag 6.8

Postby Paolo Berardi » Wed Aug 14, 2013 8:33 pm

Olivier, great! Finally a nova for eShel...
From my location the sky is totally covered by clouds... waiting your result!
Good luck with your work!
Paolo
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Re: PNV J20233073+2046041 mag 6.8

Postby Olivier GARDE » Wed Aug 14, 2013 9:09 pm

The nova is very bright.
Here's a screen shot of the autoguiding screen.
Image
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Re: PNV J20233073+2046041 mag 6.8

Postby Paolo Berardi » Wed Aug 14, 2013 9:54 pm

Thanks for sharing! Is H-alpha line already evident on 2d spectrum?
Continuous sequence of time resolved hi-res spectra will be very interesting.

Paolo
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Re: PNV J20233073+2046041 mag 6.8

Postby Olivier GARDE » Wed Aug 14, 2013 10:21 pm

Here's a screen shot of the eshel spectrum.
Image
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Re: PNV J20233073+2046041 mag 6.8

Postby Olivier Thizy » Wed Aug 14, 2013 10:36 pm

a VERY VERY easy target and suitable to all spectrograph.


Here is a 300sec exposure with a very small 85mm refractor and our new Alpy 600 spectrograph.
I quickly processed with last night calibration (I'll do the calibration in about one hour) and the result is impressive with only one exposure:

novaDel2013_tmp.png
novaDel2013_tmp.png (7.53 KiB) Viewed 4892 times



and here is the guiding field of view:

guiding_novaDel2013_Capture_crop.jpg
guiding_novaDel2013_Capture_crop.jpg (180.94 KiB) Viewed 4892 times



Everyone at their spectrograph!!! :-)

Cordialement,
Olivier Thizy
Vous ne verrez plus des étoiles comme avant !
http://www.shelyak.com/en/
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Re: PNV J20233073+2046041 mag 6.8

Postby Olivier Thizy » Wed Aug 14, 2013 11:02 pm

Le même spectre mais avec 1h de pose (12 poses de 5min) maintenant...

Same spectrum but with 1h (12*300sec) total exposure now...

_novadel2013_20130814_928.jpg
_novadel2013_20130814_928.jpg (89.56 KiB) Viewed 4820 times



Cordialement,
Olivier Thizy
Vous ne verrez plus des étoiles comme avant !
http://www.shelyak.com/en/
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Re: PNV J20233073+2046041 mag 6.8

Postby Olivier Thizy » Wed Aug 14, 2013 11:52 pm

Steve Shore recommends to also take a spectrophotometric standard when taking spectra of this nova. He points to BD28d4211 (for low resolution spectrograph like Alpy 600 and LISA of course):
http://www.eso.org/sci/observing/tools/standards/spectra/bd28d4211.html

BD+28 4211
alpha(2000) = 21h 51m 11.07s
delta(2000) = +28d 51' 51.8''
V = 10.51, B-V = -0.34, Spectral type: Op

Cordialement,
Olivier Thizy
Vous ne verrez plus des étoiles comme avant !
http://www.shelyak.com/en/
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