Observation and analysis of R1566 on May. 24, 2010 (UTC)

Dec. 3, 2010
Kazuhisa Miyashita



The catalogue's detail of R1566 is as follows.
Catalogue details

 XZ 16106 = SAO 118473 = ZC 1566 = 36 Sextantis
 RA =  10 45  9.4565   PM = -0.00324s
Dec =   2 29 16.693    PM = -0.0239"
 Mv = 6.27, Mb = 7.48, Mr = 5.64    Spectrum K4    Dia: .0013" [Estimated]

Star is the primary of the following pair
Name    Cmpt   Yr1  Yr2: PA1   PA2  :   Sep1   Sep2  :  Mag1  Mag2:     #1      #2  mean
OCc1418                :   0.0      :   0.030        :  7.30  7.30: R  1566  ------
OCc1418 observed by Unknown on 1980 Jan  1. Refer: 

WDS Discoverer codes
OCc  Possible occultation discovery


The occultation event of this star was observed by three Japanese observers on May. 24, 2010.
This star is registered to XZ double file as a double star discoverd from an occultation observation.

Light curve and explanation

Step is not detected. Brian Loader IOTA double star coordinator says
For both observations the step predicted from the catalog data was 0.04 seconds.
It is satisfying that all three light curves show very similar diffraction tails.

i) Ishida's observation





i) Karasaki's observation


i) Kenmotsu's observation