All names: LB 1320, UCAC4 511-007415, TIC 60878053, LSPM J0425+1211, uvby98 980083010, WDJ042553.73+121148.34, LP 475-70, PSO J066.4735+12.1959, Gaia DR3 3307009304776119936, PM J04258+1211, USNO-B1.0 1021-00046720, WISEA J042553.67+121145.9, 04258+1211, WD 0423+12, CNS5 1098, J0425+1211, G83-10, G 83-10, UCAC2 36056803, NLTT 13235, WD 0423+120, Gaia DR2 3307009304776119936, Gaia EDR3 3307009304776119936, EGGR 169, Cl* Melotte 25 HAN 372, LTT 17650, 2MASS J04255373+1211485, Cl* Melotte 25 VA 377, GALEX J042553.6+121146, GJ 3285
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Holberg et al. 2008 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 25 53.63 (0.03) | 04 25 53.63 (0.04) | 04 25 53.63 (0.04) | 04 25 53.52 | 04 25 53.63 | 04 25 53.73 (0.03) | 04 25 53.63 | 04 25 53.88 | |||||||||||||
| Declination | 12 11 44.59 (0.02) | 12 11 44.70 (0.02) | 12 11 44.70 (0.02) | 12 11 45.60 | 12 11 44.59 | 12 11 48.34 (0.02) | 12 11 44.70 | 12 11 57.48 | |||||||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | DC | DA8.2 | DC | DA | DC | DA8 | DC8 | |||||||
| Effective temperature | [K] | 6153.0 (36) | 5999.0 (17) | 6128.6 (18) | 5960.0 (75) | 6278.0 | 6023.0 | 6168.0 (128) | 5900.0 (77) | 6167.0 | 6167.0 (128) | 6150.0 (130) | 5156.0 (240) | ||||||||
| log(g) | [cgs] | 8.21 (0.02) | 8.15 (0.004) | 8.20 (0.009) | 8.14 (0.03) | 8.29 | 8.16 | 8.11 (0.06) | 8.00 (0.07) | 8.12 (0.06) | 8.00 (0) | 8.05 (0.002) | |||||||||
| Mass | [M☉] | 0.707 (0.01) | 0.664 (0.004) | 0.659 (0.02) | 0.775 | 0.671 | 0.65 (0.04) | 0.57 (0.04) | 0.65 (0.04) | 0.57 | 0.598 (0.002) | ||||||||||
| log(Luminosity) | [L☉] | -3.77 | -3.75 | -3.69 | |||||||||||||||||
| Cooling age | [Gyr] | 3.7100 | 3.7070 (0.2) | 3.7910 | 3.6830 | 3.0600 | 3.0600 | 2.8100 | |||||||||||||
| log(H/He) | |||||||||||||||||||||
| 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] | 62.39 (0.04) | 62.39 (0.04) | 62.38 (0.04) | 62.38 (0.04) | 62.38 (0.04) | 62.38 (0.04) | 57.60 (2) | 57.60 (2) | 57.60 (2) | 57.60 (2) | 62.39 | 62.39 (0.04) | 62.38 (0.04) | 57.60 (2) | ||||||
| Distance | [pc] | 16.03 (0.009) | 16.03 (0.01) | 16.03 (0.01) | 16.03 (0.01) | 16.03 (0.01) | 16.03 (0.01) | 17.36 (0.8) | 17.40 (4) | 17.36 | 17.40 (0.8) | 17.36 | 16.03 | 16.03 (0.009) | 16.03 (0.01) | 17.36 (0.6) | |||||
| Composition | He | He | He | He | He | He | He | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -91.38863848 (0.04) | -91.34222483 (0.08) | -91.389 (0.04) | -91.34222483 | ||||||||||||||||
| Proper motion (declination) | [mas/yr] | -234.4322294 (0.03) | -234.2920123 (0.05) | -234.432 (0.03) | -234.2920123 | ||||||||||||||||
| Variability | |||||||||||||||||||||
| Magnetic | |||||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||||
| Binarity | |||||||||||||||||||||
| B magnitude | 15.90 | 15.90 | 15.96 (0.07) | ||||||||||||||||||
| V magnitude | 15.42 | 15.42 | 15.42 | 15.44 (0.08) | |||||||||||||||||
| R magnitude | 15.11 | 15.11 | 15.54 (0.1) | ||||||||||||||||||
| I magnitude | 14.80 | 14.80 | 14.77 | ||||||||||||||||||
| J magnitude | 14.48 (0.004) | 14.48 (0.03) | 14.52 | 14.52 | 14.48 (0.03) | ||||||||||||||||
| H magnitude | 14.35 (0.04) | 14.35 (0.04) | 14.34 | 14.34 | 14.35 (0.04) | ||||||||||||||||
| K magnitude | 14.25 (0.07) | 14.25 (0.07) | 14.27 | 14.27 | 14.25 (0.07) | ||||||||||||||||
| u magnitude | |||||||||||||||||||||
| g magnitude | 15.57 (0.004) | ||||||||||||||||||||
| r magnitude | 15.29 (0.003) | ||||||||||||||||||||
| i magnitude | 15.19 (0.002) | ||||||||||||||||||||
| z magnitude | 15.20 (0.004) | ||||||||||||||||||||
| G magnitude | 15.27 (0.002) | 15.28 | 15.28 | 15.27 | 15.27 (0.003) | 15.28 | |||||||||||||||
| BP magnitude | 15.52 (0.002) | 15.53 | 15.53 | ||||||||||||||||||
| RP magnitude | 14.85 (0.002) | 14.85 | 14.85 | ||||||||||||||||||
| Pan g magnitude | 15.57 (0.005) | 15.57 (0.004) | 15.57 (0.004) | ||||||||||||||||||
| Pan r magnitude | 15.29 (0.004) | 15.29 (0.003) | 15.29 (0.003) | ||||||||||||||||||
| Pan i magnitude | 15.19 (0.002) | 15.19 (0.002) | 15.19 (0.002) | ||||||||||||||||||
| Pan z magnitude | 15.20 (0.004) | 15.20 (0.004) | 15.20 (0.004) | ||||||||||||||||||
| Pan y magnitude | 15.22 (0.002) | 15.22 (0.002) | 15.22 (0.002) | ||||||||||||||||||
| E(B-V) | 0.000 | ||||||||||||||||||||
* 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.