All names: GSC 09373-00588, 1RXP J044346.9-785150, uvby98 600203523, 2MASS J04434646-7851503, RX J0443.8-7851, WG 47, WD 0446-790, WD 0446-789, 1RXS J044345.2-785150, USNO-B1.0 0111-00014450, BPM 3523, L 31-99, WDJ044346.43-785150.18, GEN# +6.00203523, Gaia DR2 4637921057358156416
| Parameter | Unit | Gaia DR2 | Ferrario et al. 2015 | Gianninas et al. 2011 | Koester et al. 2009 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 43 46.07 (0.03) | 04 43 46.47 | 04 43 46.07 | 04 43 40.94 | ||||
| Declination | -78 51 50.15 (0.04) | -78 51 50.40 | -78 51 50.15 | -78 51 38.16 | ||||
| Spectral type | DA | DA | DA2.1 | DA3 | ||||
| Effective temperature | [K] | 23450.0 (20) | 24440.0 (382) | 23627.0 (22) | ||||
| log(g) | [cgs] | 7.88 (0.05) | 7.69 (0.003) | |||||
| Mass | [M☉] | 0.49 (0.01) | 0.57 (0.02) | |||||
| 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] | 22.78 (0.03) | 22.78 (0.03) | |||||
| Distance | [pc] | 43.89 (0.06) | 44.00 | 43.89 (0.06) | ||||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -66.51736927 (0.07) | -66.51736927 | |||||
| Proper motion (declination) | [mas/yr] | 2.260062799 (0.09) | 2.260062799 | |||||
| Variability | ||||||||
| Magnetic | yes | |||||||
| Bd | [MG] | 0.0135 * | ||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 13.36 | |||||||
| V magnitude | 13.47 | 13.47 | ||||||
| R magnitude | 14.10 | |||||||
| I magnitude | ||||||||
| J magnitude | 13.96 | |||||||
| H magnitude | 14.18 | |||||||
| K magnitude | 14.32 | |||||||
| u magnitude | ||||||||
| g magnitude | ||||||||
| r magnitude | ||||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 13.45 | 13.45 | ||||||
| BP magnitude | 13.29 | 13.29 | ||||||
| RP magnitude | 13.66 | 13.66 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.