BB Peg

Simbad link BB Peg
Source publication Kamalifar, Z. (2020) - Photometric and periodic investigations of W-type W UMa eclipsing binary BB Peg
ADS link 2020NewA...7801354K
Name in Source publication BB Peg
Orbital period in days (P [d]) 0.361502
Mass ratio (q) 0.32
Mass ratio determination Spectroscopic
Type W
Has total eclipse?
Has spots?
Has third light?
Has period variation?

Solver PHOEBE
Orbital period in days (P [d]) 0.361502
Mass ratio (q) 0.32
Orbital inclination in degrees (i [o]) 83.9
Fillout (f) 0.47
Primary temperature in Kelvins (T1 [K]) 6121
Secondary temperature in Kelvins (T2 [K]) 6355
Primary polar radius in units of orbital separation (r1p) 0.4705
Secondary polar radius in units of orbital separation (r2p) 0.2865
Surface potential (Ω) 2.4134

Orbital separation in solar radii (a [R]) 2.52
Primary radius in solar units (R1 [R]) 1.25
Secondary radius in solar units (R2 [R]) 0.79
Primary mass in solar units (M1 [M]) 1.24
Secondary mass in solar units (M2 [M]) 0.41
Primary temperature in kelvins (T1 [K]) 6121
Secondary temperature in Kelvins (T2 [K]) 6355
Primary luminosity in solar units (L1 [L]) 1.97
Secondary luminosity in solar units (L2 [L]) 0.91
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr]) 3.38

Orbital period in days (P [d]) 0.361502
Monotonic period variation in seconds per year (dPdt [s/y]) -0.000251
Cyclic period variation in years (Pc [y]) 35.17

Designation Gaia DR2 2737141804011885952
RA 335:44:13.76232
DEC 16:19:27.511608
l 78.89877343
b -33.56329607
G magnitude 11.040557
G_bp magnitude 11.313123
G_rp magnitude 10.491636
Radial velocity [km/s]
Parallax 4.277903004
Distance [pc] 233.759391
Temperature [K] 5822.22
Radius [R] 1.2259932
Luminosity [L] 1.5560563

Orbital period [d] 0.361502
Temperature [K] 5849.02
Surface gravity (log(g)) 4.138
Metallicity ([Fe/H]) 0.05

Simbad link BB Peg
J magnitude 10.215
H magnitude 9.9
K magnitude 9.827
Johnson_U magnitude
Johnson_B magnitude 11.69
Johnson_V magnitude 11.17
Johnson_R magnitude
Johnson_I magnitude
Sloan_u magnitude
Sloan_g magnitude 11.0406
Sloan_r magnitude
Sloan_i magnitude
Sloan_z magnitude

Back to List