All names: ZTF J204638.16+514735.5, KPD 2045+5136, 2MASS J20463817+5147357, UCAC4 709-078519, TIC 365213081, ATO J311.6590+51.7931, KPD2045+5136, Gaia DR2 2182023160826160000, Gaia DR3 2182023160826160000
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 20 46 38.14 | 20 46 38.17 (0.02) | ||
Declination | 51 47 36.00 | 51 47 35.60 (0.02) | ||
Spectral type | sdB | sdB | ||
Effective temperature | [K] | |||
log(g) | [cgs] | |||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 0.95 (0.03) | 0.93 (0.02) | |
Distance | [pc] | 1055.30 (35) | 1073.77 (27) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 3.139 (0.06) | 3.212 (0.03) | |
Proper motion (declination) | [mas/yr] | -7.766 (0.06) | -7.8 (0.03) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 15.25 | |||
V magnitude | 15.06 | |||
R magnitude | 15.50 (0.1) | |||
I magnitude | ||||
J magnitude | 15.26 (0.05) | 15.26 (0.05) | ||
H magnitude | 15.29 (0.09) | 15.29 (0.09) | ||
K magnitude | 15.85 | |||
u magnitude | ||||
g magnitude | 15.28 | |||
r magnitude | 15.27 | |||
i magnitude | ||||
z magnitude | ||||
G magnitude | 15.23 (0.009) | 15.23 (0.007) | ||
BP magnitude | 15.25 (0.03) | |||
RP magnitude | 15.10 (0.03) | |||
Pan g magnitude | 15.20 (0.04) | |||
Pan r magnitude | 15.27 (0.04) | |||
Pan i magnitude | 15.41 (0.04) | |||
Pan z magnitude | 15.52 (0.03) | |||
Pan y magnitude | 15.59 (0.08) | |||
E(B-V) | 0.330 |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.