All names: TIC 356502320, [TFW97] J100936.50+635838.30, WDJ100936.36+635837.35, GALEX J100936.3+635835, PG 1005+642, Gaia DR3 1053211437944753024, EGGR 432, FBS B 680, Gaia EDR3 1053211437944753024, Gaia DR2 1053211437944753024, SDSS J100936.35+635837.3, GD 462, WD 1005+642, 2MASS J10093635+6358371, FBS 1005+642, J1009+6358, SDSS J100936.36+635837.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Kilic et al. 2020 | McCleery et al. 2020 | MWDD H | Gaia DR2 | Stilism | Koester et al. 2014 | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 09 36.12 (0.02) | 10 09 36.13 (0.03) | 10 09 36.13 (0.03) | 10 09 36.12 | 10 09 36.37 (0.02) | 10 09 36.13 | 10 09 37.44 | ||||||||||
| Declination | 63 58 36.02 (0.02) | 63 58 36.06 (0.03) | 63 58 36.06 (0.03) | 63 58 36.02 | 63 58 37.35 (0.02) | 63 58 36.06 | 63 58 33.60 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA2.4 | DA | ||||||||
| Effective temperature | [K] | 20305.0 (219) | 19686.0 (395) | 20305.0 (219) | 19428.8 (262) | 17736.0 | 19450.0 (264) | 20700.0 (322) | 19660.0 (302) | 20623.0 (168) | |||||||
| log(g) | [cgs] | 8.01 (0.008) | 7.96 (0.03) | 8.01 (0.008) | 7.95 (0.02) | 7.87 | 7.92 (0.09) | 7.95 (0.05) | 7.93 (0.05) | 8.02 (0.006) | |||||||
| Mass | [M☉] | 0.628 (0.006) | 0.602 (0.01) | 0.628 (0.006) | 0.545 | 0.579 (0.05) | 0.6 (0.03) | 0.58 (0.03) | 0.636 (0.005) | ||||||||
| log(Luminosity) | [L☉] | -1.59 | |||||||||||||||
| Cooling age | [Gyr] | 0.0851 | 0.0813 | ||||||||||||||
| 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) | <-8.20 | ||||||||||||||||
| 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] | 25.38 (0.02) | 25.38 (0.02) | 25.40 (0.04) | 25.40 (0.04) | 25.38 | 25.38 (0.02) | 25.40 (0.04) | |||||||||
| Distance | [pc] | 39.40 (0.04) | 39.40 (0.03) | 39.37 (0.06) | 39.37 (0.06) | 42.00 | 41.00 | 39.40 | 39.40 (0.04) | 39.37 (0.06) | |||||||
| Composition | H | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -100.7909002 (0.02) | -100.6727266 (0.05) | -100.791 (0.02) | -100.6727266 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -83.45097817 (0.02) | -83.57792433 (0.06) | -83.451 (0.02) | -83.57792433 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 13.50 | ||||||||||||||||
| V magnitude | 13.69 (0.02) | 13.74 | 14.20 | ||||||||||||||
| R magnitude | |||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 14.23 (0.03) | ||||||||||||||||
| H magnitude | 14.33 (0.05) | ||||||||||||||||
| K magnitude | 14.36 (0.05) | ||||||||||||||||
| u magnitude | 13.61 (0.003) | 13.61 (0.003) | 13.59 | ||||||||||||||
| g magnitude | 13.54 (0.003) | 13.54 (0.003) | 13.53 | ||||||||||||||
| r magnitude | 13.93 (0.003) | 13.93 (0.003) | 13.94 | ||||||||||||||
| i magnitude | 14.22 (0.003) | 14.22 (0.003) | 14.21 | ||||||||||||||
| z magnitude | 14.54 (0.004) | 14.54 (0.004) | 14.50 | ||||||||||||||
| G magnitude | 13.75 (0.001) | 13.76 | 13.76 | 13.75 | 13.75 (0.003) | 13.76 | |||||||||||
| BP magnitude | 13.66 (0.001) | 13.64 | 13.64 | ||||||||||||||
| RP magnitude | 13.93 (0.0007) | 13.93 | 13.93 | ||||||||||||||
| Pan g magnitude | 13.64 (0) | ||||||||||||||||
| Pan r magnitude | 13.94 (0.003) | ||||||||||||||||
| Pan i magnitude | 14.25 (0.004) | ||||||||||||||||
| Pan z magnitude | 14.52 (0.002) | ||||||||||||||||
| Pan y magnitude | 14.69 (0.006) | ||||||||||||||||
| 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.