All names: 2MASS J07552598+3621558, USNO-B1.0 1263-00161481, GEN# +9.80090028, J0755+3621, Gaia DR3 906771229452899584, UBV M 53699, WIRED J075525.95+362154.7, WD 0752+365, LTT 18020, TIC 39025053, PM J07554+3621, LHS 6137, LSPM J0755+3621, USNO 132, Gaia EDR3 906771229452899584, SDSS J075525.96+362154.6, 07554+3621, WDJ075525.97+362155.08, G 111-44, NLTT 18623, EGGR 345, PLX 1867.01, G 90-28, SDSS J075525.95+362154.7, WD 0752+36, G90-28, Gaia DR2 906771229452899584, PSO J118.8578+36.3641
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Bedard et al. 2017 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Tremblay et al. 2011 | Bergeron et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 55 25.84 (0.04) | 07 55 25.96 | 07 55 25.84 (0.04) | 07 55 25.84 | 07 55 25.97 (0.04) | 07 55 25.84 | 07 55 25.96 | 07 55 26.11 | 07 55 25.95 | ||||||||||||
| Declination | 36 21 48.88 (0.03) | 36 21 54.71 | 36 21 49.07 (0.04) | 36 21 48.88 | 36 21 55.08 (0.03) | 36 21 49.07 | 36 21 54.67 | 36 22 08.76 | 36 21 54.72 | ||||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA6.4 | DA | DA | DA7 | DA | ||||||||
| Effective temperature | [K] | 7850.0 (19) | 7705.0 (60) | 7625.0 | 7362.0 | 7712.0 (111) | 7780.0 (115) | 7860.0 (116) | 7750.0 (20) | 7700.0 (190) | 7881.0 (51) | 8132.0 (13) | 7641.0 (15) | ||||||||
| log(g) | [cgs] | 7.97 (0.006) | 7.94 (0.02) | 7.89 | 7.78 | 7.98 (0.06) | 8.03 (0.07) | 8.14 (0.07) | 8.15 (0.04) | 8.19 (0.2) | 7.97 (0.01) | 8.54 (0.02) | 7.89 (0.03) | ||||||||
| Mass | [M☉] | 0.574 (0.005) | 0.557 (0.01) | 0.529 | 0.453 | 0.61 (0.04) | 0.68 (0.05) | 0.69 (0.02) | 0.71 (0.1) | 0.578 (0.009) | 0.536 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | -3.29 | -3.40 (0.1) | ||||||||||||||||||
| Cooling age | [Gyr] | 1.1100 | 1.0870 (0.04) | 1.0410 | 1.0380 | 1.4791 | 1.6000 (0.7) | ||||||||||||||
| 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] | 24.60 (0.04) | 24.57 (0.05) | 24.57 (0.05) | 24.57 (0.05) | 29.50 (4) | 29.50 (4) | 24.60 | 24.60 (0.04) | 24.57 (0.05) | 29.00 (3) | ||||||||||
| Distance | [pc] | 40.65 (0.07) | 40.70 (0.08) | 40.70 (0.09) | 40.71 (0.09) | 33.60 (4) | 33.90 (5) | 36.00 | 33.90 (5) | 40.65 | 40.65 (0.07) | 40.71 (0.09) | 34.48 (4) | ||||||||
| Composition | H | H | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -102.9285155 (0.05) | -103.0094768 (0.09) | -102.929 (0.05) | -103.009 | -101.6 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -387.5547798 (0.04) | -387.5474385 (0.07) | -387.555 (0.04) | -387.547 | -382.4 | |||||||||||||||
| Variability | |||||||||||||||||||||
| Magnetic | |||||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||||
| Binarity | |||||||||||||||||||||
| B magnitude | 16.38 | 16.33 | |||||||||||||||||||
| V magnitude | 16.09 | ||||||||||||||||||||
| R magnitude | 15.91 | 15.90 | |||||||||||||||||||
| I magnitude | 15.69 | ||||||||||||||||||||
| J magnitude | 15.53 (0.007) | 15.58 (0.06) | 15.50 | 15.58 (0.06) | |||||||||||||||||
| H magnitude | 15.44 (0.1) | 15.44 (0.1) | 15.35 | 15.44 (0.1) | |||||||||||||||||
| K magnitude | 15.88 (0.3) | 15.88 (0.3) | 15.35 | 15.88 (0.3) | |||||||||||||||||
| u magnitude | 16.57 (0.006) | 16.57 (0.006) | 16.57 (0.006) | 16.58 (0.005) | 16.59 (0.01) | 16.59 | 16.58 (0.01) | ||||||||||||||
| g magnitude | 16.15 (0.004) | 16.15 (0.0004) | 16.14 (0.003) | 16.16 (0.01) | 16.16 | 16.16 (0.01) | |||||||||||||||
| r magnitude | 16.06 (0.004) | 16.05 (0.004) | 16.06 (0.003) | 16.05 (0.01) | 16.05 | 16.05 (0.01) | |||||||||||||||
| i magnitude | 16.06 (0.004) | 16.10 (0.003) | 16.05 (0.003) | 16.05 (0.01) | 16.05 | 16.06 (0.01) | |||||||||||||||
| z magnitude | 16.16 (0.007) | 16.15 (0.005) | 16.14 (0.007) | 16.17 (0.02) | 16.17 | 16.18 (0.02) | |||||||||||||||
| G magnitude | 16.01 (0.003) | 16.03 | 16.01 | 16.01 (0.003) | 16.03 | ||||||||||||||||
| BP magnitude | 16.15 (0.003) | 16.15 | 16.15 | ||||||||||||||||||
| RP magnitude | 15.75 (0.003) | 15.76 | 15.76 | ||||||||||||||||||
| Pan g magnitude | 16.15 (0.0004) | 16.15 (0.0004) | 16.15 (0) | ||||||||||||||||||
| Pan r magnitude | 16.07 (0.01) | 16.07 (0.01) | 16.07 (0.01) | ||||||||||||||||||
| Pan i magnitude | 16.10 (0.003) | 16.10 (0.003) | 16.10 (0.003) | ||||||||||||||||||
| Pan z magnitude | 16.15 (0.005) | 16.15 (0.005) | 16.15 (0.005) | ||||||||||||||||||
| Pan y magnitude | 16.21 (0.01) | 16.21 (0.01) | 16.21 (0.01) | ||||||||||||||||||
| E(B-V) | 0.001 | ||||||||||||||||||||
* 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.