All names: SDSS J204218.52-065638.3, WD 2039-071, 2MASS J20421852-0656383, WISEA J204218.53-065638.5, SDSS J204218.52-065638.4, WISE J204218.52-065638.3, TIC 205735672
Parameter | Unit | SDSS DR12 | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|
Right ascension | 20 42 18.53 | 20 42 18.52 | 20 42 18.53 | 20 42 18.07 | |
Declination | -06 56 38.41 | -06 56 38.40 | -06 56 38.41 | -06 56 36.60 | |
Spectral type | WD+K | D+K | WD K | ||
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] | ||||
Distance | [pc] | ||||
Composition | |||||
Proper motion (right ascension) | [mas/yr] | ||||
Proper motion (declination) | [mas/yr] | ||||
Variability | |||||
Magnetic | |||||
Bd | [MG] | ||||
Infrared excess (disk) | |||||
Binarity | WDMS | ||||
B magnitude | |||||
V magnitude | |||||
R magnitude | |||||
I magnitude | |||||
J magnitude | 15.73 (0.06) | ||||
H magnitude | 15.06 (0.06) | ||||
K magnitude | 15.00 (0.1) | ||||
u magnitude | 19.54 (0.03) | 21.71 | 19.54 (0.03) | 21.71 | |
g magnitude | 18.21 (0.007) | 19.44 | 18.21 (0.007) | 19.44 | |
r magnitude | 17.41 (0.006) | 17.91 | 17.41 (0.006) | 17.91 | |
i magnitude | 17.01 (0.006) | 17.34 | 17.01 (0.006) | 17.34 | |
z magnitude | 16.72 (0.01) | 17.23 | 16.72 (0.01) | 17.23 | |
G magnitude | |||||
BP magnitude | |||||
RP magnitude | |||||
Pan g magnitude | |||||
Pan r magnitude | |||||
Pan i magnitude | |||||
Pan z magnitude | |||||
Pan y magnitude | |||||
E(B-V) |
* 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.