WDS 19537+4504 KOI 2421 AB : NOTES
 
 
discov_num notes refcode
KOI2421 The system hosts a 0.7 Rearth planet candidate with a 2.3 day orbit
(Batalha et al. 2013). We detected two companions 0.42 and 2.62 Ks KOI2013a
mags fainter than KOI 2421 at separations of 1".12 and 4".0,
respectively. The closer companion is predicted to be Kp = 15.1 (dKp =
0.7), the farther companion Kp = 17.8 (dKp = 3.5). Due to the similar
brightness of the innermost companion and KOI2421, this system will
require a significant dilution correction. If all light from the
innermost companion is captured in the Kepler aperture and the planet
orbits the target star, the planet radius measurement will need to be
increased by 23% to account for dilution. KOI2421 does not exhibit a
large source offset during transit, which lends support to the theory
that the planet candidate orbits the target star, but the system
should be inspected closely to confirm this. Dre2014
 
 
REFERENCES
 
 
refcode metd author reference
Dre2014 A j Dressing, C.D., Adams, E.R., Dupree, A.K., Kulesa, C., & McCarthy, D. 2014AJ....148...78D
Dre2014 AJ 148, 78, 2014 (additional info from Furlan et al. 2017) 2017AJ....153...71F
KOI2013a not - Batalha, N.M., Rowe, J.F., Bryson, S.T., et al. 2013ApJS..204...24B
KOI2013a ApJS 204, 24, 2013 (see Dressing et al. 2014) 2014AJ....148...78D
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19537+4504 KOI2421 AB 2013 1 290 1.1 14.36 15.10 R 195340.64+450417.2
19537+4504 KOI2421 AB 2016 3 292 1.1 14.36 15.10 N R 195340.64+450417.2

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