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Request for a spectrum of TYC 4246-883-1

PostPosted: Mon Dec 17, 2018 5:41 am
by Francois Teyssier
A professionnal team has recently established (photometry) that TYC 4246-883-1 is a delta scuti star.

A spectrum of the object is requested. LISA, DADOS-200, Alpy600 will be perfect for that mag V ~ 11 target.

Coordinates:
http://simbad.harvard.edu/simbad/sim-id?Ident=TYC+4246-883-1

The spectrum should be published in the discovery paper.

Send it to: francoismathieu.teyssier [] bbox.fr

François

Re: Request for a spectrum of TYC 4246-883-1

PostPosted: Sat Dec 29, 2018 10:54 am
by Francois Teyssier
Woody Sims and Hubert Boussier obtained spectra of the target
The spectral type should be ~F0 with insterstellar redenning ~ 0.2

No more spectra are needed (the spectral variability is expected to be very low)

tyc4246-883-1_20181227_081_Forrest Sims_dered.png
tyc4246-883-1_20181227_081_Forrest Sims_dered.png (70.19 KiB) Viewed 978 times


Red: raw spectrum
Blue: dereddened spectrum
Magenta: Pickles F0V

Thanks to Woody and Hubert
Waiting for informations from the discoverer.

François

Re: Request for a spectrum of TYC 4246-883-1

PostPosted: Mon Dec 31, 2018 9:47 am
by Dubreuil Pierre
Bonjour à tous

Hier soir ciel clair à Nice
Certes le type spectral est maintenant défini...
Ma contribution avec UVEX3 N2 en phase de réglage .
UVEX3 N2 Obs.png
UVEX3 N2 sur C8 Aspremont (06)
UVEX3 N2 Obs.png (759.79 KiB) Viewed 919 times


Infos sur l'image

TYC 4246-883-1_20181230_pierre dubreuil.png
TYC 4246-883-1_20181230_pierre dubreuil.png (13.22 KiB) Viewed 919 times


Il y a encore du boulot !


Bons réveillons à tous

Pierre