KIC8462852 - Taby's Star

[James Foster]

Here is a somewhat difficult spectrum to acquire (from the city), the 11.5 V magnitude spectrum of KIC8462852 in Cygnus:

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

[JP Nougayrede]

Nice spectrum of a fascinating star James.
Now it would be nice to catch a spectrum during a photometric dip

[Joan Guarro Flo]

Nice job, James.

Congratulations ! Joan.

[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

[JP Nougayrede]

Tabetha Boyajian twitted 3 hours ago that the star is dipping right now.

Should observe now !

[Dubreuil Pierre]

Hello all
Here is a simultaneous photometric and spectroscopic observation of the KIC star in the night from Saturday to Sunday.

Spectre

kic8462852_20170520_914_pierre dubreuil.jpg (145.17 KiB) Viewed 5763 times

Courbe de lumiere

Measurements.jpg (112.3 KiB) Viewed 5763 times

Spectrograph Alpy 600, SC C8, atik 314l +
Photometry, guide refractor 60x400, atik 314l +

For the fun !

Pierre