YZ Phe

Simbad link YZ Phe
Source publication Sarotsakulchai, Thawicharat (2019) - YZ Phoenicis: a very short period K-type contact binary with variation of the O'Connell effect and orbital period change
ADS link 2019PASJ...71...81S
Name in Source publication YZ Phe
Orbital period in days (P [d]) 0.234727
Mass ratio (q) 0.38
Mass ratio determination Photometric
Type W
Has total eclipse?
Has spots?
Has third light?
Has period variation?

Solver WD
Orbital period in days (P [d]) 0.234727
Mass ratio (q) 0.38
Orbital inclination in degrees (i [o]) 83.3
Fillout (f) 0.1
Primary temperature in Kelvins (T1 [K]) 4658
Secondary temperature in Kelvins (T2 [K]) 4908
Primary polar radius in units of orbital separation (r1p) 0.4412
Secondary polar radius in units of orbital separation (r2p) 0.2829
Surface potential (Ω) 2.6138

Orbital separation in solar radii (a [R]) 1.61
Primary radius in solar units (R1 [R]) 0.76
Secondary radius in solar units (R2 [R]) 0.49
Primary mass in solar units (M1 [M]) 0.74
Secondary mass in solar units (M2 [M]) 0.28
Primary temperature in kelvins (T1 [K]) 4658
Secondary temperature in Kelvins (T2 [K]) 4908
Primary luminosity in solar units (L1 [L]) 0.24
Secondary luminosity in solar units (L2 [L]) 0.12
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr]) 10.89

Orbital period in days (P [d]) 0.234727
Monotonic period variation in seconds per year (dPdt [s/y]) -0.002281
Cyclic period variation in years (Pc [y])

Designation Gaia DR2 4955123908498793984
RA 25:36:28.145016
DEC -46:02:55.964616
l 278.0274754
b -68.63314508
G magnitude 12.59029
G_bp magnitude 13.131252
G_rp magnitude 11.901005
Radial velocity [km/s]
Parallax 4.908405621
Distance [pc] 0.203732
Temperature [K] 4908.3335
Radius [R] 0.7830884
Luminosity [L] 0.32066572

Simbad link YZ Phe
J magnitude 11.321
H magnitude 10.765
K magnitude 10.708
Johnson_U magnitude
Johnson_B magnitude
Johnson_V magnitude 12.56
Johnson_R magnitude
Johnson_I magnitude
Sloan_u magnitude
Sloan_g magnitude 12.5903
Sloan_r magnitude
Sloan_i magnitude
Sloan_z magnitude

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