BU Tri
| Simbad link | BU Tri |
|---|---|
| Source publication | Poro, Atila (2025) - BSN-III: The First Multiband Photometric Study on the Eight Total Eclipse Contact Binary Stars |
| ADS link | 2025arXiv250720607P |
| Name in Source publication | BU Tri |
| Orbital period in days (P [d]) | 0.295558 |
| Mass ratio (q) | 4.53 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 184733841 |
| Solver | PHOEBE2 |
|---|---|
| Orbital period in days (P [d]) | 0.295558 |
| Mass ratio (q) | 4.53 |
| Orbital inclination in degrees (i [o]) | 83.5 |
| Fillout (f) | 0.37 |
| Primary temperature in Kelvins (T1 [K]) | 5846 |
| Secondary temperature in Kelvins (T2 [K]) | 5509 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 8.34 |
| Orbital separation in solar radii (a [R]) | 2.04 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.56 |
| Secondary radius in solar units (R2 [R]) | 1.1 |
| Primary mass in solar units (M1 [M]) | 0.24 |
| Secondary mass in solar units (M2 [M]) | 1.07 |
| Primary temperature in kelvins (T1 [K]) | 5846 |
| Secondary temperature in Kelvins (T2 [K]) | 5509 |
| Primary luminosity in solar units (L1 [L]) | 0.33 |
| Secondary luminosity in solar units (L2 [L]) | 1 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.295558 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.182822 |
| Cyclic period variation in years (Pc [y]) |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Secondary | 301 | 19 | 0.88 |
| Designation | Gaia DR3 331349446919806720 |
|---|---|
| RA | 33:15:22.433129 |
| DEC | 37:03:25.84347 |
| l | 140.52033453825965 |
| b | -23.01232746102863 |
| G [mag] | 15.69594 |
| G_bp [mag] | 16.052742 |
| G_rp [mag] | 15.130669 |
| Parallax | 0.6151794781782275 |
| Distance [pc] | 1120.9976 |
| Temperature [K] | 5784.063 |
| Surface gravity log(g) [cm/s2] | 4.4981 |
| Metallicity [Fe/H] | -0.7591 |
| Monochromatic extinction A0 [mag] | 0.3412 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | BU Tri |
|---|---|
| J magnitude | 14.281 |
| H magnitude | 13.973 |
| K magnitude | 13.89 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 16.2 |
| Johnson_V magnitude | 15.6 |
| Johnson_R magnitude | 15.414 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 16.142 |
| Sloan_r magnitude | 15.653 |
| Sloan_i magnitude | |
| Sloan_z magnitude |