Low spectra of CH Cyg and BF Cyg required

Campaign on the request of Dr Ausgustin Skopal
H alpha line at R > 10,000
and low res spectra

Re: Low spectra of CH Cyg and BF Cyg required

Postby Timo Kantola » Wed Sep 19, 2018 8:57 pm

Hi!
I did gif animation my low res CH Cyg observations 31.7,19.8 and 29.8.2018.
Sorry for the vague quality compared to your pros. However, I decided to share this, because I think that there are all kinds of things happening there, however, no glue what.
Wide range changes possibly resulting different reference stars 31.7 Vega, 19.8 and 29.8 HD181470, and varying humidity conditions and my inexperties. First is "full spectrun 3750-7400Å and second is same "zoomed" 3750-4950Å.
30cm F4 Newton + Alpy600 + Atik314L+
Attachments
1 CH CYG 2018_07_31 N – Kopio_pipp.gif
1 CH CYG 2018_07_31 N – Kopio_pipp.gif (141.86 KiB) Viewed 5911 times
1 CH CYG 2018_07_31 zoom x10 b M_pipp.gif
1 CH CYG 2018_07_31 zoom x10 b M_pipp.gif (146.48 KiB) Viewed 5911 times
Timo Kantola
 
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Re: Low spectra of CH Cyg and BF Cyg required

Postby Francois Teyssier » Fri Sep 21, 2018 2:50 pm

Hello Timo,
It looks good results at a first glance.
At least some of the variations are real. See for instance H beta according to the continuum
Your spectra are welcome in the database

François
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Location: Rouen

Re: Low spectra of CH Cyg and BF Cyg required

Postby James Foster » Wed Jul 31, 2019 10:58 am

Here is a Medium/Low resolution spectra of CH Cyg made from three different sets of spectra taken with the LhiresIII:
Image
As usual, all lines identified, except the balmer, are speculative.

I shot the Ha/Hb on 27July19 and the H-del centered one the following (28July19) night. Shooting Ha/Hb is relatively simple
using my robofocus controlled micrometer (see: http://spectro-aras.com/forum/viewtopic.php?f=8&t=1932&p=9993&hilit=robofocus#p9993),
however when shooting near H-delta, the LhiresIII interior condenser lens must be rotated almost 1 turn to get properly focused lines
to 3800A.

James
James Foster
eShel2
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope,
LISA IR/Visual Spectroscope (IR Configured Presently)
Alpy 600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200
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