All names: Gaia DR3 4622856957782901504, GEN# +6.00203523, BPM 3523, L 31-99, TIC 269855781, WISE J044346.17-785149.9, WG 47, Gaia DR2 4622856957782901504, uvby98 600203523, WD 0446-789, 1RXP J044346.9-785150, EC 04465-7857, 1RXS J044345.2-785150, GSC 09373-00588, USNO-B1.0 0111-00014450, 2MASS J04434646-7851503, UCAC4 056-003122, RX J0443.8-7851, WDJ044346.43-785150.18, WISEA J044346.18-785149.8, Gaia EDR3 4622856957782901504
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Ferrario et al. 2015 | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 43 46.06 (0.02) | 04 43 46.07 (0.03) | 04 43 46.06 | 04 43 46.43 (0.02) | 04 43 46.07 | 04 43 40.94 | |||||
| Declination | -78 51 50.15 (0.02) | -78 51 50.15 (0.04) | -78 51 50.15 | -78 51 50.18 (0.02) | -78 51 50.15 | -78 51 38.16 | |||||
| Spectral type | DA | DA | DA | DA2.1 | DA3 | ||||||
| Effective temperature | [K] | 23450.0 (20) | 24440.0 (382) | 23627.0 (22) | 25270.0 (229) | ||||||
| log(g) | [cgs] | 7.88 (0.05) | 7.69 (0.003) | 7.92 (0.008) | |||||||
| Mass | [M☉] | 0.49 (0.01) | 0.57 (0.02) | 0.591 (0.006) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| 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] | 22.74 (0.02) | 22.78 (0.03) | 22.74 | 22.74 (0.02) | 22.78 (0.03) | |||||
| Distance | [pc] | 43.97 (0.04) | 43.89 (0.06) | 44.00 | 43.97 | 43.97 (0.04) | 43.89 (0.06) | ||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -66.75647876 (0.03) | -66.51736927 (0.07) | -66.756 (0.03) | -66.51736927 | ||||||
| Proper motion (declination) | [mas/yr] | 2.230179572 (0.03) | 2.260062799 (0.09) | 2.23 (0.03) | 2.260062799 | ||||||
| Variability | |||||||||||
| Magnetic | yes | ||||||||||
| Bd | [MG] | 0.0135 * | |||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 13.30 (0.04) | ||||||||||
| V magnitude | 13.47 | 13.42 (0.03) | |||||||||
| R magnitude | 13.76 (0.07) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 13.96 (0.03) | ||||||||||
| H magnitude | 14.18 (0.05) | ||||||||||
| K magnitude | 14.32 (0.09) | ||||||||||
| u magnitude | |||||||||||
| g magnitude | 13.26 (0.04) | ||||||||||
| r magnitude | 13.65 (0.07) | ||||||||||
| i magnitude | 13.97 (0.07) | ||||||||||
| z magnitude | |||||||||||
| G magnitude | 13.44 (0.001) | 13.45 | 13.44 | 13.44 (0.003) | 13.45 | ||||||
| BP magnitude | 13.33 (0.001) | 13.29 | 13.29 | ||||||||
| RP magnitude | 13.66 (0.001) | 13.66 | 13.66 | ||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.002 | ||||||||||
* 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.