All names: WISE J153421.78+391549.5, 2MASS J15342174+3915505, WDS J15344+3916A, SDSS J153421.86+391550.0, WISEA J153421.77+391549.5, SDSS J153421.75+391550.4, TIC 148785849, ** SKF 1756A, SDSS J153421.88+391550.0, WD 1532+394, Gaia DR3 1389389866916642048, Gaia EDR3 1389389866916642048, LAMOST J153421.88+391550.0, Gaia DR2 1389389866916642048
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 34 21.78 (0.05) | 15 34 21.81 | 15 34 21.78 (0.07) | 15 34 21.88 | 15 34 21.76 (0.05) | 15 34 21.87 | 15 34 21.82 | 15 34 21.88 | ||||
| Declination | 39 15 49.01 (0.05) | 39 15 50.15 | 39 15 49.06 (0.08) | 39 15 50.00 | 39 15 50.57 (0.05) | 39 15 50.05 | 39 15 43.92 | 39 15 50.03 | ||||
| Spectral type | DA+M | DA+M | DA | dM4 | DA+M | DA d | DA+M | |||||
| Effective temperature | [K] | 9844.0 (48) | 9960.0 (90) | 21293.0 (306) | 21696.0 (243) | |||||||
| log(g) | [cgs] | 8.39 (0.07) | 8.47 (0.07) | 6.19 (0.05) | 6.21 (0.04) | |||||||
| Mass | [M☉] | 0.85 (0.04) | 0.9 (0.04) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.3804 | ||||||||||
| 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] | 7.58 (0.06) | 7.51 (0.09) | 7.58 (0.06) | ||||||||
| Distance | [pc] | 131.86 (1) | 133.13 (2) | 665.00 (42) | 131.86 (1) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 19.25810801 (0.06) | 19.05 (0.1) | 19.258 (0.06) | 27.6 | |||||||
| Proper motion (declination) | [mas/yr] | -97.27175036 (0.07) | -97.305 (0.2) | -97.272 (0.07) | -106.4 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 13.95 (0.03) | |||||||||||
| H magnitude | 13.42 (0.03) | |||||||||||
| K magnitude | 13.12 (0.03) | |||||||||||
| u magnitude | 18.21 (0.01) | 18.23 | 24.66 (1) | 18.23 (0.02) | 18.23 | 18.24 (0.02) | ||||||
| g magnitude | 17.56 (0.005) | 17.87 | 19.16 (0.01) | 17.87 (0.03) | 17.87 | 17.86 (0.03) | ||||||
| r magnitude | 17.08 (0.004) | 18.14 | 17.60 (0.006) | 18.14 (0.09) | 18.14 | 18.14 (0.09) | ||||||
| i magnitude | 16.08 (0.004) | 18.03 | 16.30 (0.005) | 18.03 (0.3) | 18.03 | 18.03 (0.3) | ||||||
| z magnitude | 15.40 (0.005) | 22.83 | 15.42 (0.005) | 22.83 (0.7) | 22.83 | 22.84 (0.7) | ||||||
| G magnitude | 17.00 (0.04) | 17.00 | 17.00 (0.003) | |||||||||
| BP magnitude | 17.85 (0.04) | 17.88 | ||||||||||
| RP magnitude | 15.65 (0.006) | 15.65 | ||||||||||
| Pan g magnitude | ||||||||||||
| Pan r magnitude | ||||||||||||
| Pan i magnitude | ||||||||||||
| Pan z magnitude | ||||||||||||
| Pan y magnitude | ||||||||||||
| E(B-V) | 0.017 | |||||||||||
* 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.