EPIC 210678858 - APH0000s4l
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by
zoo3hans
EPIC 210678858 Maybe 2 planets here: one with P=31.33 days (BKJD 2240.04 and 2271.37) the other with P=14.8 days (2252.07, 2266.92, 2281.71, 2296.62).
Posted
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by
JKD
Yes, likely a PC with p=31.33d starting at 2240.03 BKJD
Duration ~5.39 hrs
Signal Depth ~2240 ppm
However, IMO p=14.8 d is likely contaminated or influenced by bad areas
Posted
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by
ajamyajax
Re 210678858 and a Planet Hunters find: agree, looks like a good multi-planet candidate to me as well. Although contamination always possible, I believe in this rare case the corrective software affected the transit depths of the shorter period event seen here. MAST data used for the fits shown to compensate. Also the object size estimates and a near 1:2 orbital resonance support the planet case in my opinion. 0.67X R_sol used for the star estimate.
s1=2240.027 p1=31.341 d1=0.18 (4.32 hours)
s2=2237.217 p2=14.85 d2=0.13 (3.12 hours)
EPIC, 2MASS, J mag, H mag, K mag, J - H, H - K, (J-H spectral type, stellar mass est) (H-K spectral type, stellar mass est)
210678858 , 2MASS J03261169+1803599 , 11.231 , 10.775 , 10.679 , 0.456 , 0.096 , ('K2V', 0.85) , ('K1V', 0.86)
au min-max 0.165 0.185
stellar diameter in solar units min-max 0.625 0.73
stellar mass in solar units min-max 0.61 0.86
period in days min-max 31.34 31.344
duration in hours min-max 4.221 4.402au min-max 0.1 0.11
stellar diameter in solar units min-max 0.575 0.67
stellar mass in solar units min-max 0.605 0.805
period in days min-max 14.849 14.853
duration in hours min-max 3.021 3.22From NEA, K2 Targets within search area:
EPIC Number RA [decimal degrees] Dec [decimal degrees] Distance [arc sec] Kepler-band [mag] Campaign Number
210678858 51.5488 18.0667 0.12 12.736 4
210679567 51.5169 18.0761 114.36 16.290 4
210677099 51.5807 18.0410 143.02 16.298 4
Posted