All names: WD 1715+601, SDSS J171556.26+600643.7, Gaia DR3 1437422577835403520, Gaia DR2 1437422577835403520, Gaia EDR3 1437422577835403520, SDSS J171556.28+600643.6, GALEX J171556.1+600644, SDSS J171556.29+600643.9, SDSS J171556.29+600643.8
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Hardy et al. 2023a | MWDD H | Gaia DR2 | Stilism | Ferrario et al. 2015 | Kulebi et al. 2009 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 17 15 56.26 (0.3) | 17 15 56.27 | 17 15 56.26 (0.3) | 17 15 56.29 | 17 15 56.28 (0.3) | 17 15 56.28 | 17 15 55.61 | 17 15 56.29 | 17 15 56.29 | |||||||
Declination | 60 06 44.02 (0.3) | 60 06 43.73 | 60 06 44.01 (0.4) | 60 06 43.88 | 60 06 43.70 (0.3) | 60 06 43.62 | 60 06 41.04 | 60 06 43.89 | 60 06 43.88 | |||||||
Spectral type | DA | DA | DA | DAH | DAP | DA | DA3.4 | DAH | DA | |||||||
Effective temperature | [K] | 14180.5 (710) | 11331.0 | 13500.0 | 12870.0 (1361) | 12153.0 (797) | 14651.0 (1090) | |||||||||
log(g) | [cgs] | 7.90 (0.2) | 7.68 | 8.00 (0) | 8.17 (0.4) | 8.46 (0.3) | 7.88 (0.3) | |||||||||
Mass | [M☉] | 0.5546321342199546 (0.1) | 0.437 | |||||||||||||
log(Luminosity) | [L☉] | |||||||||||||||
Cooling age | [Gyr] | 0.2945 | ||||||||||||||
log(H/He) | ||||||||||||||||
log(C/He) | ||||||||||||||||
log(Ca/He) | ||||||||||||||||
log(Ca/H) | ||||||||||||||||
log(C/H) | ||||||||||||||||
log(N/H) | ||||||||||||||||
log(O/H) | ||||||||||||||||
log(Na/H) | ||||||||||||||||
log(Mg/H) | ||||||||||||||||
log(Al/H) | ||||||||||||||||
log(Si/H) | ||||||||||||||||
log(P/H) | ||||||||||||||||
log(S/H) | ||||||||||||||||
log(Sc/H) | ||||||||||||||||
log(Ti/H) | ||||||||||||||||
log(Cr/H) | ||||||||||||||||
log(Mn/H) | ||||||||||||||||
log(Fe/H) | ||||||||||||||||
log(Ni/H) | ||||||||||||||||
Parallax | [mas] | 2.53 (0.3) | 2.41 (0.4) | 2.53 (0.3) | ||||||||||||
Distance | [pc] | 395.94 (40) | 415.35 (63) | 395.95 (40) | ||||||||||||
Composition | H | H | ||||||||||||||
Proper motion (right ascension) | [mas/yr] | -7.318875143 (0.4) | -7.401674293 (0.8) | -7.319 (0.4) | -13.0 | -15.0 | ||||||||||
Proper motion (declination) | [mas/yr] | 19.44466983 (0.4) | 18.76107481 (0.9) | 19.445 (0.4) | 12.0 | 14.0 | ||||||||||
Variability | ||||||||||||||||
Magnetic | yes | yes | ||||||||||||||
Bd | [MG] | 2.03 | 2.03 (0) | |||||||||||||
Infrared excess (disk) | ||||||||||||||||
Binarity | ||||||||||||||||
B magnitude | ||||||||||||||||
V magnitude | ||||||||||||||||
R magnitude | ||||||||||||||||
I magnitude | ||||||||||||||||
J magnitude | ||||||||||||||||
H magnitude | ||||||||||||||||
K magnitude | ||||||||||||||||
u magnitude | 19.63 (0.03) | 19.63 (0.03) | 19.70 (0.04) | 19.68 | 19.66 (0.03) | 19.68 (0.03) | ||||||||||
g magnitude | 19.34 (0.01) | 19.34 (0.01) | 19.34 (0.02) | 19.34 | 19.34 (0.02) | 19.34 (0.02) | ||||||||||
r magnitude | 19.57 (0.02) | 19.57 (0.01) | 19.59 (0.02) | 19.60 | 19.59 (0.02) | 19.60 (0.02) | ||||||||||
i magnitude | 19.73 (0.02) | 19.73 (0.03) | 19.73 (0.03) | 19.74 | 19.72 (0.03) | 19.74 (0.03) | ||||||||||
z magnitude | 19.75 (0.09) | 19.75 (0.09) | 19.78 (0.09) | 19.78 | 19.77 (0.09) | 19.78 (0.09) | ||||||||||
G magnitude | 19.46 (0.05) | 19.50 | 19.46 (0.004) | |||||||||||||
BP magnitude | 19.47 (0.05) | 19.45 | ||||||||||||||
RP magnitude | 19.58 (0.07) | 19.54 | ||||||||||||||
Pan g magnitude | 19.38 (0.03) | |||||||||||||||
Pan r magnitude | 19.58 (0.006) | |||||||||||||||
Pan i magnitude | 19.77 (0.009) | |||||||||||||||
Pan z magnitude | 20.01 (0.03) | |||||||||||||||
Pan y magnitude | 19.80 (0.1) | |||||||||||||||
E(B-V) | 0.022 |
* 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.