All names: SDSS J020304.29-122902.7, UCAC4 388-002306, WDS J02031-1229A, WDJ020304.33-122901.74, WD 0200-127, Gaia EDR3 5149836834977282048, KUV 02006-1243, J0203-1229, MCT 0200-1243, BPS CS 22171-0018, CNS5 519, ** GWP 256A, Gaia DR3 5149836834977282048, 2MASS J02030431-1229018, TIC 257484757, Gaia DR2 5149836834976621056, GD 1072
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Bergeron et al. 2021 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 03 04.29 (0.04) | 02 03 04.29 (0.07) | 02 03 04.29 | 02 03 04.33 (0.04) | 02 03 04.29 | 02 03 04.18 | ||||||||
| Declination | -12 29 03.64 (0.03) | -12 29 03.58 (0.04) | -12 29 03.64 | -12 29 01.73 (0.03) | -12 29 03.58 | -12 28 54.12 | ||||||||
| Spectral type | DC | DC | DC | DC | DC | DC: | DC | DC | ||||||
| Effective temperature | [K] | 9881.0 (113) | 9870.0 (33) | 9350.0 (39) | 10122.0 | 10072.0 | 9739.0 (48) | |||||||
| log(g) | [cgs] | 8.18 (0.03) | 8.16 (0.006) | 8.05 (0.007) | 8.33 | 8.26 | 8.15 (0.008) | |||||||
| Mass | [M☉] | 0.691 (0.02) | 0.677 (0.005) | 0.61 (0.004) | 0.806 | 0.745 | 0.671 (0.007) | |||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.8500 | 0.8409 | 0.9565 | 0.8948 | |||||||||
| log(H/He) | -4.6 | -4.4 | ||||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | ||||||||||||||
| log(Ca/H) | ||||||||||||||
| log(Li/He) | ||||||||||||||
| log(Be/He) | ||||||||||||||
| log(B/He) | ||||||||||||||
| 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(K/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] | 41.51 (0.04) | 41.51 (0.04) | 41.57 (0.06) | 41.57 (0.06) | 41.51 | 41.51 (0.04) | 41.57 (0.06) | ||||||
| Distance | [pc] | 24.09 (0.02) | 24.09 (0.02) | 24.06 (0.03) | 24.00 | 24.06 (0.04) | 24.09 | 24.09 (0.02) | 24.06 (0.04) | |||||
| Composition | He | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -39.07246692 (0.04) | -39.04356378 (0.1) | -39.072 (0.04) | -39.04356378 | |||||||||
| Proper motion (declination) | [mas/yr] | -119.164411 (0.03) | -119.0420916 (0.08) | -119.164 (0.03) | -119.0420916 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 14.75 (0.03) | |||||||||||||
| V magnitude | 14.55 (0.01) | |||||||||||||
| R magnitude | 14.69 (0.06) | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 14.51 (0.03) | 14.51 (0.03) | ||||||||||||
| H magnitude | 14.54 (0.06) | 14.54 (0.06) | ||||||||||||
| K magnitude | 14.66 (0.1) | 14.66 (0.1) | ||||||||||||
| u magnitude | 14.64 (0.004) | 14.66 (0.004) | ||||||||||||
| g magnitude | 14.51 (0.003) | |||||||||||||
| r magnitude | 14.73 (0.003) | |||||||||||||
| i magnitude | 14.74 (0.003) | |||||||||||||
| z magnitude | 14.90 (0.005) | |||||||||||||
| G magnitude | 14.53 (0.001) | 14.54 | 14.53 | 14.53 (0.003) | 14.54 | |||||||||
| BP magnitude | 14.54 (0.001) | 14.53 | 14.53 | |||||||||||
| RP magnitude | 14.44 (0.002) | 14.45 | 14.45 | |||||||||||
| Pan g magnitude | 14.54 (0.003) | 14.54 (0.003) | ||||||||||||
| Pan r magnitude | 14.63 (0.002) | 14.63 (0.002) | ||||||||||||
| Pan i magnitude | 14.78 (0.002) | 14.78 (0.002) | ||||||||||||
| Pan z magnitude | 14.94 (0.002) | 14.94 (0.002) | ||||||||||||
| Pan y magnitude | 15.04 (0.003) | 15.04 (0.003) | ||||||||||||
| 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.