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Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Thu Sep 01, 2022 11:27 am
by David Boyd
Guider image of OY Cyg
- OY Cyg guider image.png (20.97 KiB) Viewed 21986 times
Spectrum of OY Cyg
- OY Cyg.png (35.48 KiB) Viewed 21986 times
Looks like a M6III - M7III spectrum.
David
Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Thu Sep 01, 2022 8:08 pm
by JP Nougayrede
Hello,
Same result as David and Vincent on OY Cyg, albeit in low resolution
- OY guide.jpg (226.01 KiB) Viewed 21965 times
- OY Cyg_20220901T193820.png (45.56 KiB) Viewed 21965 times
Jean-Philippe
Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Thu Sep 01, 2022 9:29 pm
by JP Nougayrede
2MASS J01090044+5203369 in Cassiopea
C11@F7 Alpy 600 slit 35 um CCD 414 5x300s
- 2MASS_J01090044_5203369.obs.png (40.57 KiB) Viewed 21956 times
Guide image and astrometry
- 2Mguide.jpg (492.4 KiB) Viewed 21956 times
Jean-Philippe
Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Sun Sep 04, 2022 3:06 pm
by 2SPOT
Others candidates symbiotic stars taken in automatic mode from Chile :
Gaia 18bec : mag. V=13,5
V618 Sgr : Mag. V=10
Src 501 : Mag. G=13,6 ( close to 47 Tuc globular cluster)
Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Tue Sep 06, 2022 11:55 pm
by Hamish Barker
Hen 4-129 from last night. I don't have expertise to make classification of it but have submitted the fits file to Francois and Jaroslav.
Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Sun Sep 11, 2022 1:18 pm
by Vincent Bouttard
Hi all,
IRAS 18120+4530 and KIC 4918300.
IRAS 18120+430 seems to be a symbiotic system.
Very faint stars for my setup but a really nice challenge
Vincent
Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Wed Sep 14, 2022 2:03 pm
by 2SPOT
Two others candidates taken in automatic mode from Chile last night :
- AL 4 (Mag. V=14,80) nothing to see, only a continuum
- AS 241 (Mag. V=15,80) Balmer's lines in emission
Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Sun Sep 18, 2022 5:19 am
by Christophe Boussin
Hello all,
Here is my new contribution to this classification program with DV Aur which is identified as a long period variable in the Simbad database.
I obtained the following spectrum of DV Aur the 18th of September at 1 h 52 TU with my Alpy 600 (resolution of 509, JJ = 2459840.5781) and an acquisition time of 60 min (6 x 600s) :
- DV Aur on September 18th, 2022
- _dvaur_20220918_078_Christophe Boussin_3700_7565.png (92.15 KiB) Viewed 21593 times
- Guiding field
- CHAMP DV Aur_legende.png (453.88 KiB) Viewed 21593 times
- Image of the field (Aladin)
- DV Aur on September 18th, 2022 (identification from PlotSpectra)
No balmer lines are visible in emission in the spectrum.
Clear skies,
Christophe BOUSSIN
Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Thu Sep 22, 2022 9:59 pm
by Vincent Bouttard
Hello,
A spectra of 2MASS J19274650+3841111 with my autoguider FOV.
- 2MASS_j19274650+3841111_20220920_861_vbo.png (6.83 KiB) Viewed 21495 times
- 2MASS_J19274650+3841111_guideur_W_neg.jpg (148.91 KiB) Viewed 21495 times
Vincent
Re: Suspected/Misclassified Symbiotics: spectra required
Posted: Sat Sep 24, 2022 8:45 am
by JP Nougayrede
Bonjour everybody,
Another spectrum (low rez R300) of 2MASS J19274650+3841111, which seems to confirm Vincent's observation
- Guiding-astrometry.jpg (278.18 KiB) Viewed 21465 times
- 2MASS J19274650+3841111_20220924T082205.png (63.55 KiB) Viewed 21465 times
Bon ciel,
Jean-Philippe