BV Eri
| Simbad link | BV Eri |
|---|---|
| Source publication | Deb, Sukanta (2011) - Physical parameters of 62 eclipsing binary stars using the All Sky Automated Survey-3 data - I |
| ADS link | 2011MNRAS.412.1787D |
| Name in Source publication | BV Eri |
| Orbital period in days (P [d]) | 0.507655 |
| Mass ratio (q) | 0.3 |
| Mass ratio determination | Spectroscopic |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.507655 |
| Mass ratio (q) | 0.3 |
| Orbital inclination in degrees (i [o]) | 74.5 |
| Fillout (f) | 0.32 |
| Primary temperature in Kelvins (T1 [K]) | 6881 |
| Secondary temperature in Kelvins (T2 [K]) | 5737 |
| Primary polar radius in units of orbital separation (r1p) | 0.4685 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2748 |
| Surface potential (Ω) | 2.406 |
| Orbital separation in solar radii (a [R]) | 2.99 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.51 |
| Secondary radius in solar units (R2 [R]) | 0.89 |
| Primary mass in solar units (M1 [M]) | 1.07 |
| Secondary mass in solar units (M2 [M]) | 0.32 |
| Primary temperature in kelvins (T1 [K]) | 6881 |
| Secondary temperature in Kelvins (T2 [K]) | 5737 |
| Primary luminosity in solar units (L1 [L]) | 4.56 |
| Secondary luminosity in solar units (L2 [L]) | 0.77 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 4.67 |
| Orbital period in days (P [d]) | 0.507655 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.023846 |
| Cyclic period variation in years (Pc [y]) | |
| Period study | Qian, Shengbang (2002) - Short-period near-contact binary systems at the beginning of the overcontact phase |
| ADS link | 2002MNRAS.336.1247Q |
| Designation | Gaia DR2 3194189584882388096 |
|---|---|
| RA | 57:58:19.48512 |
| DEC | -11:28:08.405976 |
| l | 200.4876042 |
| b | -44.49430733 |
| G [mag] | 8.212237 |
| G_bp [mag] | 8.467428 |
| G_rp [mag] | 7.885129 |
| Parallax | 8.043365986 |
| Distance [pc] | 3.84E-09 |
| Temperature [K] | 6512.75 |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | 1.8996294 |
| Luminosity [L] | 5.849114 |
| Simbad link | BV Eri |
|---|---|
| J magnitude | 7.322 |
| H magnitude | 7.199 |
| K magnitude | 7.101 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 8.69 |
| Johnson_V magnitude | |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 8.2122 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |