V842 Cep
| Simbad link | V842 Cep |
|---|---|
| Source publication | Li, Yu-Yang (2021) - The first photometric analysis and period investigation of the K-type W UMa type binary system V0842 Cep |
| ADS link | 2021RAA....21..122L |
| Name in Source publication | V0842 Cep |
| Orbital period in days (P [d]) | 0.288951 |
| Mass ratio (q) | 2.28 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 390970980 |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.288951 |
| Mass ratio (q) | 2.28 |
| Orbital inclination in degrees (i [o]) | 80 |
| Fillout (f) | 0.09 |
| Primary temperature in Kelvins (T1 [K]) | 5197 |
| Secondary temperature in Kelvins (T2 [K]) | 4920 |
| Primary polar radius in units of orbital separation (r1p) | 0.2938 |
| Secondary polar radius in units of orbital separation (r2p) | 0.4295 |
| Surface potential (Ω) | 5.5926 |
| Orbital separation in solar radii (a [R]) | 1.89 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.59 |
| Secondary radius in solar units (R2 [R]) | 0.87 |
| Primary mass in solar units (M1 [M]) | 0.33 |
| Secondary mass in solar units (M2 [M]) | 0.76 |
| Primary temperature in kelvins (T1 [K]) | 5197 |
| Secondary temperature in Kelvins (T2 [K]) | 4920 |
| Primary luminosity in solar units (L1 [L]) | |
| Secondary luminosity in solar units (L2 [L]) | 0.4 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.288951 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.01296 |
| Cyclic period variation in years (Pc [y]) |
| Designation | Gaia DR3 2278428855735834624 |
|---|---|
| RA | 317:55:11.368218 |
| DEC | 76:40:10.211349 |
| l | 111.41695748879731 |
| b | 19.015358018709446 |
| G [mag] | 14.055231 |
| G_bp [mag] | 14.6438875 |
| G_rp [mag] | 13.290344 |
| Parallax | 2.054541623229915 |
| Distance [pc] | 482.2295 |
| Temperature [K] | 5150.3394 |
| Surface gravity log(g) [cm/s2] | 4.4171 |
| Metallicity [Fe/H] | 0.2014 |
| Monochromatic extinction A0 [mag] | 0.5078 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | V842 Cep |
|---|---|
| J magnitude | 12.168 |
| H magnitude | 11.744 |
| K magnitude | 11.593 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 14 |
| Johnson_V magnitude | |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 14.79 |
| Sloan_r magnitude | 13.97 |
| Sloan_i magnitude | |
| Sloan_z magnitude |