BL Eri
| Simbad link | BL Eri |
|---|---|
| Source publication | Liu, Q. (1996) - BL Eridani: an unstable W Ursae Majoris system with spotted components. |
| ADS link | 1996A&AS..118..453L |
| Name in Source publication | BL Eri |
| Orbital period in days (P [d]) | 0.416916 |
| Mass ratio (q) | 0.55 |
| 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]) | 0.416916 |
| Mass ratio (q) | 0.55 |
| Orbital inclination in degrees (i [o]) | 89.8 |
| Fillout (f) | 0.16 |
| Primary temperature in Kelvins (T1 [K]) | 5980 |
| Secondary temperature in Kelvins (T2 [K]) | 5603 |
| Primary polar radius in units of orbital separation (r1p) | 0.4155 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3156 |
| Surface potential (Ω) | 2.9108 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | |
| Secondary radius in solar units (R2 [R]) | |
| Primary mass in solar units (M1 [M]) | |
| Secondary mass in solar units (M2 [M]) | |
| Primary temperature in kelvins (T1 [K]) | 5980 |
| Secondary temperature in Kelvins (T2 [K]) | 5603 |
| Primary luminosity in solar units (L1 [L]) | |
| Secondary luminosity in solar units (L2 [L]) | |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.416916 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) |
| Designation | Gaia DR2 3189462062837687168 |
|---|---|
| RA | 62:57:07.348212 |
| DEC | -12:12:30.979008 |
| l | 205.0095017 |
| b | -40.70030453 |
| G [mag] | 17.974722 |
| G_bp [mag] | 17.646893 |
| G_rp [mag] | 16.27342 |
| Parallax | 2.459644432 |
| Distance [pc] | 0.001250331 |
| Temperature [K] | |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | BL Eri |
|---|---|
| J magnitude | 10.144 |
| H magnitude | 9.839 |
| K magnitude | 9.747 |
| Johnson_U magnitude | 11.021 |
| Johnson_B magnitude | 12.13 |
| Johnson_V magnitude | 11.335 |
| Johnson_R magnitude | 11.162 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 11.65 |
| Sloan_r magnitude | 11.162 |
| Sloan_i magnitude | 11.021 |
| Sloan_z magnitude |