All names: SDSS J042011.22+333536.4, SDSS J042011.21+333536.6, Gaia EDR3 175702855768911360, LSPM J0420+3335, WD 0416+33, LAMOST J042011.26+333537.3, USNO-B1.0 1235-00072697, GD 60, WD 0416+334, WDJ042011.21+333537.02, GEN# +6.10060060, Gaia DR2 175702855768911360, TIC 239677707, 2MASS J04201119+3335372, Gaia DR3 175702855768911360
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 20 11.32 (0.03) | 04 20 11.22 | 04 20 11.31 (0.06) | 04 20 11.32 | 04 20 11.21 (0.03) | 04 20 11.31 | 04 20 10.75 | 04 20 11.21 | ||||||||
| Declination | 33 35 34.22 (0.02) | 33 35 36.43 | 33 35 34.30 (0.04) | 33 35 34.22 | 33 35 37.02 (0.02) | 33 35 34.30 | 33 35 39.12 | 33 35 36.61 | ||||||||
| Spectral type | DA | DA | DA | DA2.8 | DA | DA | DA | |||||||||
| Effective temperature | [K] | 16625.0 | 18587.0 | 20487.0 (3576) | 17700.0 (272) | 16743.0 (214) | 17635.0 (62) | |||||||||
| log(g) | [cgs] | 7.86 | 8.09 | 7.24 (0.6) | 7.90 (0.05) | 7.86 (0.01) | 7.80 (0.01) | |||||||||
| Mass | [M☉] | 0.542 | 0.646 | 0.32 (0.1) | 0.56 (0.03) | 0.54 (0.009) | 0.521 (0.005) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||||
| Cooling age | [Gyr] | 0.1097 | 0.1133 | |||||||||||||
| 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] | 13.75 (0.04) | 13.83 (0.07) | 13.75 | 13.75 (0.04) | 13.83 (0.07) | ||||||||||
| Distance | [pc] | 72.71 (0.2) | 72.31 (0.3) | 79.00 | 72.71 | 72.71 (0.2) | 72.31 (0.3) | |||||||||
| Composition | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 83.71336949 (0.05) | 83.6706813 (0.1) | 83.713 (0.05) | 83.6706813 | |||||||||||
| Proper motion (declination) | [mas/yr] | -175.2131626 (0.03) | -175.1168316 (0.09) | -175.213 (0.03) | -175.1168316 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 15.34 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 15.50 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 15.49 (0.05) | |||||||||||||||
| H magnitude | 15.56 (0.2) | |||||||||||||||
| K magnitude | 15.18 (0.2) | |||||||||||||||
| u magnitude | 15.22 (0.004) | 15.22 (0.004) | 15.22 (0.004) | (0) | ||||||||||||
| g magnitude | 15.04 (0.004) | 15.04 (0.004) | 15.04 (0.004) | |||||||||||||
| r magnitude | 15.37 (0.004) | 15.37 (0.004) | 15.37 (0.004) | (0) | ||||||||||||
| i magnitude | 15.66 (0.005) | 15.66 (0.005) | 15.66 (0.005) | (0) | ||||||||||||
| z magnitude | 15.96 (0.007) | 15.96 (0.007) | 15.96 (0.007) | (0) | ||||||||||||
| G magnitude | 15.21 (0.002) | 15.23 | 15.21 | 15.21 (0.003) | 15.23 | |||||||||||
| BP magnitude | 15.15 (0.002) | 15.13 | 15.13 | |||||||||||||
| RP magnitude | 15.36 (0.003) | 15.36 | 15.36 | |||||||||||||
| Pan g magnitude | 15.07 (0.002) | |||||||||||||||
| Pan r magnitude | 15.39 (0.004) | |||||||||||||||
| Pan i magnitude | 15.68 (0.001) | |||||||||||||||
| Pan z magnitude | 15.92 (0.001) | |||||||||||||||
| Pan y magnitude | 16.10 (0.01) | |||||||||||||||
| E(B-V) | 0.003 | |||||||||||||||
* 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.