TY Pup
| Simbad link | TY Pup |
|---|---|
| Source publication | Sarotsakulchai, T. (2018) - TY Pup: A Low-mass-ratio and Deep Contact Binary as a Progenitor Candidate of Luminous Red Novae |
| ADS link | 2018AJ....156..199S |
| Name in Source publication | TY Pup |
| Orbital period in days (P [d]) | 0.819241 |
| Mass ratio (q) | 0.25 |
| Mass ratio determination | Spectroscopic |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.819241 |
| Mass ratio (q) | 0.25 |
| Orbital inclination in degrees (i [o]) | 83.6 |
| Fillout (f) | 0.84 |
| Primary temperature in Kelvins (T1 [K]) | 6900 |
| Secondary temperature in Kelvins (T2 [K]) | 6915 |
| Primary polar radius in units of orbital separation (r1p) | 0.5009 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2832 |
| Surface potential (Ω) | 2.22 |
| Orbital separation in solar radii (a [R]) | 4.65 |
|---|---|
| Primary radius in solar units (R1 [R]) | 2.64 |
| Secondary radius in solar units (R2 [R]) | 1.37 |
| Primary mass in solar units (M1 [M]) | 1.65 |
| Secondary mass in solar units (M2 [M]) | 0.3 |
| Primary temperature in kelvins (T1 [K]) | 6900 |
| Secondary temperature in Kelvins (T2 [K]) | 6915 |
| Primary luminosity in solar units (L1 [L]) | 14.11 |
| Secondary luminosity in solar units (L2 [L]) | 3.86 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 1.11 |
| Orbital period in days (P [d]) | 0.819241 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.004812 |
| Cyclic period variation in years (Pc [y]) | 3.62 |
| Designation | Gaia DR2 5620104860188835200 |
|---|---|
| RA | 113:11:33.08532 |
| DEC | -21:12:29.55564 |
| l | 236.0368471 |
| b | -0.723161494 |
| G magnitude | 8.594591 |
| G_bp magnitude | 8.807716 |
| G_rp magnitude | 8.22761 |
| Radial velocity [km/s] | |
| Parallax | 4.450134753 |
| Distance [pc] | 224.712296 |
| Temperature [K] | 7019.25 |
| Radius [R] | 2.4834592 |
| Luminosity [L] | 13.488748 |
| Simbad link | TY Pup |
|---|---|
| J magnitude | 7.662 |
| H magnitude | 7.493 |
| K magnitude | 7.405 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 8.99 |
| Johnson_V magnitude | 8.6 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 8.5946 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |