PSN J09554214+6940260 in M82 - mag V 11.7

[Christian Buil]

SN2014J with a 10.6 cm refractor (FSQ106ED Takahashi):



and with a CN212 reflector (D=21 cm) the same night and with the same spectrometer (Alpy 600):



(note visisibility of Ca II - K&K lines)

An image of M82 + SN taken with the FSQ106ED refractor (Bleu, Green and Infrared filtrers - 780 nm):



Infrared filter enhance dust ption regions Here a Halpha version taken the
same night:



Christian

[Christian Buil]

My latest spectrum of SN2014J taken the 2014/02/16.9 with a 106 mm
refractor and Alpy600 spectrograph (19 microns slit, one hour exposure).



Also a small work on this spectrum: it is easy to degrade the original
resolution of Alpy600 spectrograph to a typical resolution of
SA100 spectra (nearly R=140 in the majority of situation probably or lower –
see yellow Na lines depth). Of course, the signal to noise is now very high.
It is a typical information transfert from spectral resolution to radiometric
resolution, possible from Alpy->SA (because Alpy offers a spectral resolution
provision), not from SA->Alpy, unfortunatly.

Christian

[Tony Heidemann]

Hello,

here my latest spectrum of SN2014J taken with
CN212/alpy/ST7 on Mach1 at SMU Castor.



clear skies

[Christian Buil]

A spectrum taken the 21.8/02/2014 with an Alpy 600 (19 microns slit with, fine seeing) on
a Celestron 11 telescope (6 x 600 sec. exposure):



Christian

[Christian Buil]

A spectrum taken the 21.8/02/2014 with an Alpy 600 (19 microns slit with, fine seeing) + Atik460EX camera on
a Celestron 11 telescope (6 x 600 sec. exposure):



Christian

[Christian Buil]

A medium resolution (R=2300) of SN214J (C11 + Lhires III 600 g/mm with a 27 microns slit)
Taken in two part (6x600sec each):



Some faint lines are visibles (see also Paolo Berardi 06/02/2014 spectrum) and compare with Alpy/Lisa spectra.

Christian

[Olivier GARDE]

Here's a spectrum taken with my C14 and eshel spectrograph. The flux was very poor and the spectrum very noisy.

The target near the fiber hole


And the spectrum 9 exposures of 1800s, total of 4h30'



Olivier GARDE

[Olivier Thizy]

Olivier,


4h30 - wahouh!

Did you send your spectrum so it can be uploaded on ARAS database?
http://www.astrosurf.com/aras/Aras_Data ... 4J_M82.htm


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

[Olivier GARDE]

Olivier,
Did you send your spectrum so it can be uploaded on ARAS database?
http://www.astrosurf.com/aras/Aras_Data ... 4J_M82.htm

Yes, I did it .....

[Thierry Lemoult]

Cool Olivier. You spectrum is in good agreament with Christian ALPY spectrum, except for wave lenght beloww 5000A. Who said that eShell was for bright target ... Well, a LISA ou ALPY will perform better, but it's still possible with the eShel.
Regards
Thierry Lemoult