IV Dra
Simbad link | IV Dra |
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Source publication | Robb, R. M. (1998) - Photometry of the W UMa System GSC 3869 484 |
ADS link | 1998IBVS.4610....1R |
Name in Source publication | GSC 3869-484 |
Orbital period in days (P [d]) | 0.26805 |
Mass ratio (q) | 0.5 |
Mass ratio determination | Photometric |
Type | W |
Has total eclipse? | |
Has spots? | |
Has third light? | |
Has period variation? |
Solver | Binary Maker |
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Orbital period in days (P [d]) | 0.26805 |
Mass ratio (q) | 0.5 |
Orbital inclination in degrees (i [o]) | 69 |
Fillout (f) | 0.2 |
Primary temperature in Kelvins (T1 [K]) | 5400 |
Secondary temperature in Kelvins (T2 [K]) | 5600 |
Primary polar radius in units of orbital separation (r1p) | 0.4245 |
Secondary polar radius in units of orbital separation (r2p) | 0.3104 |
Surface potential (Ω) | 2.8161 |
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]) | 5400 |
Secondary temperature in Kelvins (T2 [K]) | 5600 |
Primary luminosity in solar units (L1 [L]) | |
Secondary luminosity in solar units (L2 [L]) | |
Distance in parsecs (d [pc]) | |
Age in gigayears (τ [gyr]) |
Designation | Gaia DR2 1597680284530218240 |
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RA | 234:05:48.4296 |
DEC | 53:19:11.274996 |
l | 85.2026616 |
b | 49.94891897 |
G magnitude | 13.270529 |
G_bp magnitude | 13.827207 |
G_rp magnitude | 12.566169 |
Radial velocity [km/s] | |
Parallax | 3.009563407 |
Distance [pc] | 332.274109 |
Temperature [K] | 5145.5 |
Radius [R] | 0.8288301 |
Luminosity [L] | 0.43384647 |
Simbad link | IV Dra |
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J magnitude | 11.618 |
H magnitude | 11.142 |
K magnitude | 10.981 |
Johnson_U magnitude | |
Johnson_B magnitude | 14.27 |
Johnson_V magnitude | 13.32 |
Johnson_R magnitude | |
Johnson_I magnitude | |
Sloan_u magnitude | |
Sloan_g magnitude | 13.2705 |
Sloan_r magnitude | |
Sloan_i magnitude | |
Sloan_z magnitude |