IK Boo
| Simbad link | IK Boo |
|---|---|
| Source publication | Kriwattanawong, Wichean (2017) - The first photometric investigation and orbital period variation analysis of the W UMa type binary IK Bootis |
| ADS link | 2017PASJ...69...62K |
| Name in Source publication | IK Boo |
| Orbital period in days (P [d]) | 0.303117 |
| Mass ratio (q) | 0.87 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.303117 |
| Mass ratio (q) | 0.87 |
| Orbital inclination in degrees (i [o]) | 61.3 |
| Fillout (f) | 0.01 |
| Primary temperature in Kelvins (T1 [K]) | 5781 |
| Secondary temperature in Kelvins (T2 [K]) | 5422 |
| Primary polar radius in units of orbital separation (r1p) | 0.3681 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3453 |
| Surface potential (Ω) | 3.5358 |
| Orbital separation in solar radii (a [R]) | 2.33 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.91 |
| Secondary radius in solar units (R2 [R]) | 0.85 |
| Primary mass in solar units (M1 [M]) | 0.99 |
| Secondary mass in solar units (M2 [M]) | 0.86 |
| Primary temperature in kelvins (T1 [K]) | 5781 |
| Secondary temperature in Kelvins (T2 [K]) | 5422 |
| Primary luminosity in solar units (L1 [L]) | 0.64 |
| Secondary luminosity in solar units (L2 [L]) | 0.73 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.303117 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.028339 |
| Cyclic period variation in years (Pc [y]) | 9.74 |
| Designation | Gaia DR2 1453085193988180480 |
|---|---|
| RA | 212:11:32.69184 |
| DEC | 29:29:08.028564 |
| l | 45.36101514 |
| b | 72.83680342 |
| G [mag] | 11.262257 |
| G_bp [mag] | 11.621017 |
| G_rp [mag] | 10.764901 |
| Parallax | 4.303187855 |
| Distance [pc] | 2.46E-09 |
| Temperature [K] | 5762 |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | 1.1256377 |
| Luminosity [L] | 1.2583022 |
| Temperature [K] | 5628.78 |
|---|---|
| Surface gravity log(g) [cm/s2] | 4.115 |
| Metallicity [Fe/H] | -0.589 |
| Simbad link | IK Boo |
|---|---|
| J magnitude | 10.222 |
| H magnitude | 9.86 |
| K magnitude | 9.805 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 12.23 |
| Johnson_V magnitude | 11.63 |
| Johnson_R magnitude | 11.5 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 11.2623 |
| Sloan_r magnitude | 11.5 |
| Sloan_i magnitude | |
| Sloan_z magnitude |