All names: J0423+5006, Gaia DR3 270485053053115648, WD 0419+500, WDJ042308.53+500616.61, Gaia EDR3 270485053053115648, TIC 470429964, 2MASS J04230851+5006168, EGGR 523, GEN# +6.20003103, Putney 2, RL 103, Gaia DR2 270485053053115648, WD 0420+50, USNO-B1.0 1401-00117741, GSC2 N33212022675
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 23 08.57 (0.04) | 04 23 08.56 (0.06) | 04 23 08.57 | 04 23 08.53 (0.04) | 04 23 08.56 | 04 23 10.27 | ||||
| Declination | 50 06 14.64 (0.03) | 50 06 14.70 (0.04) | 50 06 14.64 | 50 06 16.62 (0.03) | 50 06 14.70 | 50 07 58.44 | ||||
| Spectral type | DC | DC | DC5 | DC5 | ||||||
| Effective temperature | [K] | 9413.0 (48) | 9743.0 (82) | |||||||
| log(g) | [cgs] | 7.94 (0.009) | 8.04 (0.01) | |||||||
| Mass | [M☉] | 0.544 (0.008) | 0.605 (0.01) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.7100 | ||||||||
| log(H/He) | -4.4 | |||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(N/He) | ||||||||||
| log(O/He) | ||||||||||
| log(Na/He) | ||||||||||
| log(Mg/He) | ||||||||||
| log(Al/He) | ||||||||||
| log(Si/He) | ||||||||||
| log(P/He) | ||||||||||
| log(S/He) | ||||||||||
| log(Cl/He) | ||||||||||
| log(Sc/He) | ||||||||||
| log(Ti/He) | ||||||||||
| log(V/He) | ||||||||||
| log(Cr/He) | ||||||||||
| log(Mn/He) | ||||||||||
| log(Fe/He) | ||||||||||
| log(Co/He) | ||||||||||
| log(Ni/He) | ||||||||||
| log(Cu/He) | ||||||||||
| log(Zn/He) | ||||||||||
| log(Ga/He) | ||||||||||
| log(Ge/He) | ||||||||||
| log(Sr/He) | ||||||||||
| Parallax | [mas] | 18.36 (0.05) | 18.35 (0.07) | 18.35 (0.07) | 18.36 | 18.36 (0.05) | 18.35 (0.07) | |||
| Distance | [pc] | 54.46 (0.1) | 54.50 (0.2) | 54.49 (0.2) | 54.46 | 54.46 (0.1) | 54.49 (0.2) | |||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 23.28756967 (0.05) | 23.30032138 (0.1) | 23.288 (0.05) | 23.30032138 | |||||
| Proper motion (declination) | [mas/yr] | -123.5875892 (0.04) | -123.5584355 (0.07) | -123.588 (0.04) | -123.5584355 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.26 | |||||||||
| V magnitude | 16.28 | |||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.14 (0.01) | 16.21 (0.1) | ||||||||
| H magnitude | ||||||||||
| K magnitude | 16.01 (0.02) | |||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | 16.21 (0.1) | |||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.12 (0.002) | 16.15 | 16.12 | 16.12 (0.003) | 16.15 | |||||
| BP magnitude | 16.15 (0.002) | 16.12 | 16.12 | |||||||
| RP magnitude | 16.05 (0.003) | 16.05 | 16.05 | |||||||
| Pan g magnitude | 16.14 (0.003) | 16.14 (0.003) | ||||||||
| Pan r magnitude | 16.23 (0.002) | 16.23 (0.003) | ||||||||
| Pan i magnitude | 16.38 (0.003) | 16.38 (0.003) | ||||||||
| Pan z magnitude | 16.55 (0.002) | 16.55 (0.003) | ||||||||
| Pan y magnitude | 16.67 (0.01) | 16.67 (0.009) | ||||||||
| 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.