All names: LAMOST J153421.88+391550.0, Gaia DR2 1389389866916642048, ** SKF 1756A, WD 1532+394, Gaia DR3 1389389866916642048, SDSS J153421.88+391550.0, Gaia EDR3 1389389866916642048, TIC 148785849, WISEA J153421.77+391549.5, 2MASS J15342174+3915505, SDSS J153421.75+391550.4, WDS J15344+3916A, SDSS J153421.86+391550.0, WISE J153421.78+391549.5
| 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(Li/H) | ||||||||||||
| log(Be/H) | ||||||||||||
| log(B/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(Cl/H) | ||||||||||||
| log(K/H) | ||||||||||||
| log(Sc/H) | ||||||||||||
| log(Ti/H) | ||||||||||||
| log(V/H) | ||||||||||||
| log(Cr/H) | ||||||||||||
| log(Mn/H) | ||||||||||||
| log(Fe/H) | ||||||||||||
| log(Co/H) | ||||||||||||
| log(Ni/H) | ||||||||||||
| log(Cu/H) | ||||||||||||
| log(Sr/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.