All names: Gaia DR2 2693095097621419648, LP 577-36, PM J21222+0413, Gaia EDR3 2693095097621419648, NLTT 51121, SDSS J212212.31+041354.4, USNO-B1.0 0942-00558698, Gaia DR3 2693095097621419648, 2MASS J21221234+0413565, CNS5 5264, J2122+0413, 21222+0413, SDSS J212212.32+041354.4, WDJ212212.35+041356.77, TIC 318302395, LSPM J2122+0413, PSO J320.5512+04.2311, WD 2119+040
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Kilic et al. 2020 | Blouin et al. 2019 | Gaia DR2 | Subasavage et al. 2017 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Sayres et al. 2012 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 22 12.27 (0.04) | 21 22 12.27 (0.06) | 21 22 12.27 (0.06) | 21 22 12.35 | 21 22 12.24 | 21 22 12.35 | 21 22 12.27 | 21 22 12.35 (0.04) | 21 22 12.27 | 21 22 11.69 | ||||||||||
| Declination | 04 13 50.15 (0.04) | 04 13 50.36 (0.06) | 04 13 50.36 (0.06) | 04 13 05.08 | 04 13 55.20 | 04 13 56.80 | 04 13 50.15 | 04 13 56.77 (0.04) | 04 13 50.36 | 04 13 50.52 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA | DA9.0 | DA9.0 | DC: | DA9 | DA | ||||||
| Effective temperature | [K] | 4928.0 (10) | 4969.0 (39) | 4975.0 (10) | 4949.0 (56) | 4948.0 (8) | 4935.0 (25) | 4970.0 (70) | 5150.0 (50) | 4970.0 (36) | 5150.0 (50) | 5051.0 (19) | ||||||||
| log(g) | [cgs] | 7.76 (0.005) | 7.80 (0.02) | 7.81 (0.006) | 7.80 (0.04) | 7.78 (0.006) | 7.77 (0.02) | 7.80 (0.04) | 8.00 (0) | 8.00 (0) | 7.84 (0.01) | |||||||||
| Mass | [M☉] | 0.444 (0.004) | 0.475 (0.006) | 0.471 (0.004) | 0.456 (0.005) | 0.449 (0.01) | 0.47 (0.03) | 0.58 (0) | 0.58 (0.1) | 0.485 (0.008) | ||||||||||
| log(Luminosity) | [L☉] | -3.95 (0.04) | -4.06 | |||||||||||||||||
| Cooling age | [Gyr] | 3.6900 | 3.5620 (0.2) | 3.6600 (0.5) | 4.9100 | |||||||||||||||
| 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] | 41.30 (0.05) | 41.30 (0.05) | 41.33 (0.08) | 41.33 (0.08) | 41.33 (0.08) | 41.33 (0.08) | 41.19 (0.5) | 41.30 | 41.30 (0.05) | 41.33 (0.08) | |||||||||
| Distance | [pc] | 24.22 (0.03) | 24.21 (0.03) | 24.20 (0.05) | 24.19 (0.05) | 24.19 (0.05) | 24.19 (0.05) | 24.28 (0.3) | 23.02 (0.2) | 21.60 (2) | 22.10 | 24.22 | 24.22 (0.03) | 24.19 (0.05) | ||||||
| Composition | H | H | H | H | H | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -75.84477337 (0.05) | -75.67081398 (0.1) | -75.845 (0.05) | -75.67081398 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -413.3203551 (0.04) | -413.2118645 (0.1) | -413.32 (0.04) | -413.2118645 | |||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | 17.75 | 17.50 | ||||||||||||||||||
| V magnitude | 16.78 | 16.82 | ||||||||||||||||||
| R magnitude | 16.28 | 16.20 | ||||||||||||||||||
| I magnitude | 15.81 | |||||||||||||||||||
| J magnitude | 15.26 (0.01) | 15.24 (0.05) | 15.24 (0.05) | 15.24 | 15.24 (0.05) | 15.24 (0.05) | ||||||||||||||
| H magnitude | 15.01 (0.07) | 15.01 (0.07) | 15.01 (0.07) | 15.01 | 15.01 (0.07) | 15.01 (0.07) | ||||||||||||||
| K magnitude | 14.88 (0.1) | 14.88 (0.1) | 14.88 (0.1) | 14.88 | 14.88 (0.1) | 14.88 (0.1) | ||||||||||||||
| u magnitude | 18.85 (0.02) | 18.86 | 18.86 (0.02) | 18.87 (0.02) | 18.84 (0.02) | |||||||||||||||
| g magnitude | 17.20 | 17.20 (0.005) | 17.14 (0.004) | 17.23 (0.005) | ||||||||||||||||
| r magnitude | 16.49 | (0.005) | 16.51 (0.002) | 16.51 (0.004) | ||||||||||||||||
| i magnitude | 16.23 | 16.23 (0.005) | 16.25 (0.001) | 16.23 (0.005) | ||||||||||||||||
| z magnitude | 16.12 | 16.12 (0.007) | 16.16 (0.004) | 16.11 (0.007) | ||||||||||||||||
| G magnitude | 16.54 (0.006) | 16.55 | 16.55 | 16.54 | 16.54 (0.003) | 16.55 | ||||||||||||||
| BP magnitude | 17.00 (0.006) | 17.02 | 17.02 | |||||||||||||||||
| RP magnitude | 15.89 (0.005) | 15.90 | 15.90 | |||||||||||||||||
| Pan g magnitude | 17.14 (0.004) | 17.14 (0.004) | 17.14 (0.003) | |||||||||||||||||
| Pan r magnitude | 16.51 (0.002) | 16.51 (0.002) | 16.51 (0.002) | |||||||||||||||||
| Pan i magnitude | 16.25 (0.002) | 16.25 (0.002) | 16.25 (0.001) | |||||||||||||||||
| Pan z magnitude | 16.16 (0.004) | 16.16 (0.004) | 16.16 (0.004) | |||||||||||||||||
| Pan y magnitude | 16.12 (0.004) | 16.12 (0.004) | 16.12 (0.005) | |||||||||||||||||
| 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.