KIC8462852 - Taby's Star

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James Foster
Posts: 439
Joined: Sun Jan 24, 2016 7:14 am

KIC8462852 - Taby's Star

Post by James Foster »

Here is a somewhat difficult spectrum to acquire (from the city), the 11.5 V magnitude spectrum of KIC8462852 in Cygnus:
Image
Shot 10x90 sec exposures with CDK17 reflector at F/6.8 with Atik 460ex CCD. Processed in Isis and plotted in BaSS 1.96. I used nearby HD181096, a F6IV miles star, to process my instrument response. Two very prominent Hg lines are shown; bad light pollution looking east towards highly populated San Gabriel Valley. Seems like a normal F3V spectrum with the exception of a very wide and deep H-beta absorption feature.

James
James Foster
eShel2-Zwo ASI6200MM Pro
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope
LISA IR/Visual Spectroscope (IR Configured)
Alpy 200/600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200
JP Nougayrede
Posts: 152
Joined: Tue Oct 20, 2015 8:33 pm

Re: KIC8462852 - Taby's Star

Post by JP Nougayrede »

Nice spectrum of a fascinating star James.
Now it would be nice to catch a spectrum during a photometric dip 8-)
Joan Guarro Flo
Posts: 611
Joined: Thu Nov 03, 2011 8:50 pm

Re: KIC8462852 - Taby's Star

Post by Joan Guarro Flo »

Nice job, James.

Congratulations ! Joan.
James Foster
Posts: 439
Joined: Sun Jan 24, 2016 7:14 am

Re: KIC8462852 - Taby's Star

Post by James Foster »

Thanks JP & Joan!
I will shoot this object from my dark sky, high altitude site (2500m) this summer
to get better SNR and eliminate those Hg lines which I get on LISA spectra taken in LA.


James
James Foster
eShel2-Zwo ASI6200MM Pro
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope
LISA IR/Visual Spectroscope (IR Configured)
Alpy 200/600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200
JP Nougayrede
Posts: 152
Joined: Tue Oct 20, 2015 8:33 pm

Re: KIC8462852 - Taby's Star

Post by JP Nougayrede »

Tabetha Boyajian twitted 3 hours ago that the star is dipping right now.
DAMGMjLUIAIshYS.jpg large.jpg
Should observe now !
Dubreuil Pierre
Posts: 202
Joined: Sat Oct 01, 2011 12:34 pm

Re: KIC8462852 - Taby's Star

Post by Dubreuil Pierre »

Hello all
Here is a simultaneous photometric and spectroscopic observation of the KIC star in the night from Saturday to Sunday.
Spectre
Spectre
kic8462852_20170520_914_pierre dubreuil.jpg (145.17 KiB) Viewed 5218 times
Courbe de lumiere
Courbe de lumiere
Measurements.jpg (112.3 KiB) Viewed 5218 times
Spectrograph Alpy 600, SC C8, atik 314l +
Photometry, guide refractor 60x400, atik 314l +

For the fun !

Pierre
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