[vsnet-ecl 7688] b Per observations by H.Yoshihara (Oct/2020)

[K.Nagai]

object         YYMMDD(UT)        mag    code
PERb        20201017.569      4.60cG  Yde.VSOLJ
PERb        20201019.562      4.56cG  Yde.VSOLJ
PERb        20201020.567      4.60cG  Yde.VSOLJ
PERb        20201023.567      4.59cG  Yde.VSOLJ
PERb        20201024.535      4.68cG  Yde.VSOLJ
PERb        20201024.603      4.58cG  Yde.VSOLJ
PERb        20201026.514      4.55cG  Yde.VSOLJ
PERb        20201027.506      4.60cG  Yde.VSOLJ
PERb        20201027.585      4.60cG  Yde.VSOLJ

Observer   : H.Yoshihara (Okayama, Japan)
Instruments: NikonD600+MFNikkor135mm(F8), ISO800, WB Auto, 15sec exp.
photometry : Makali'i  https://makalii.mtk.nao.ac.jp/index.html.en
comp. HIP20156 5.456V
Check HIP20370

cG magnitude is measured from G-channel images based on V magnitude comparison.


           - Oct/2020 b Per (By H.Yoshihara) -
4.5+                                                    
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   |                           *             *          
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4.6+                       *     *     *        *       
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4.7+---------+---------+---------+---------+---------+--
            10        15        20        25        30