Planet Hunters Talk

KIC 5556425 Possible Transit?

  • sean63 by sean63

    Q5-3 ~514.3 BJD

    enter image description here

    Posted

  • Dolorous_Edd by Dolorous_Edd

    Looks like it

    I have checked MOM data, no offsets

    Visible in SAP_FLUX

    SAP_QUALITY is also good

    Posted

  • Dolorous_Edd by Dolorous_Edd

    UKIRT J-band

    sadly, not good

    enter image description here

    Posted

  • ajamyajax by ajamyajax

    It would be a very long period, if real. Also saw several other similar looking dips so the usual other reasons also possible. But hope you found something here.

    s1=506.71 p1=? d1=0.98 (23.52 hours)

    s2=514.325 p2=? d2=0.82 (19.68 hours)

    s3=899.49 p3=? d3=0.89 (21.36 hours)

    Semi-Major Axis a (A.U.) = 5.115

    Stellar diameter ratio = 0.63

    Stellar mass ratio = 0.62

    Period ~= 5366.14 days

    Duration ~= 23.52 hours

    For Reference this period ~= 14.69 years

    Jupiter P=11.8 years, 5.20 AU

    Saturn P=29.5 years, 9.54 AU

    Neptune P=165 years, 30.06 AU

    (Kepler data for RA/Dec 297.5608,40.7398)

    Kepler KIC# [Angular Separation] Kep Mag/ Teff /Stellar Radius / MAST link*

    KIC 5556425 [0'] 15.561/4335/0.649* http://archive.stsci.edu/kepler/data_search/search.php?action=Search&ktc_kepler_id=5556425

    http://exoplanetarchive.ipac.caltech.edu/cgi-bin/nstedAPI/nph-nstedAPI?table=keplerstellar&select=kepid,mass,radius,teff&where=kepid=5556425&format=csv

    kepid,mass,radius,teff

    5556425,0.62,0.630,4434

    Posted

  • zoo3hans by zoo3hans

    I think it could be a real transit, period about 11 years, radius 2.7 R_Earth (according to Kian's Planaetary Calculator).

    Posted

  • zoo3hans by zoo3hans

    Another shallower transit could be at BJD 208.6, duration about 10.5 hours, depth 0.0005, this would give a period around 607 days and radius 1.5 R_Earth.

    Posted