All names: 2MASS J10421910+4429161, SDSS J104219.07+442916.0, GALEX J104219.1+442916, [HHD2009] SDSS J1042+4429, TIC 376491464, Gaia EDR3 829294692369248128, Gaia DR3 829294692369248128, WD 1039+447, Gaia DR2 829294688061124864, LAMOST J104219.08+442915.9, WIRED J104219.07+442916.0, SDSS J104219.08+442916.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 42 19.07 (0.4) | 10 42 19.08 | 10 42 19.07 (0.5) | 10 42 19.07 | 10 42 19.09 (0.4) | 10 42 19.08 | 10 42 19.06 | 10 42 19.08 | ||||
| Declination | 44 29 15.92 (0.4) | 44 29 16.00 | 44 29 15.93 (0.6) | 44 29 16.01 | 44 29 16.19 (0.4) | 44 29 16.00 | 44 29 11.04 | 44 29 16.00 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 21705.0 (471) | 23800.0 (620) | 9253.0 (54) | 9444.0 (39) | |||||||
| log(g) | [cgs] | 7.84 (0.08) | 7.96 (0.09) | 8.62 (0.06) | 8.45 (0.05) | |||||||
| Mass | [M☉] | 0.543 (0.04) | 0.61 (0.05) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0295 | ||||||||||
| 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] | 2.25 (0.6) | 0.32 (0.8) | 2.25 (0.6) | ||||||||
| Distance | [pc] | 443.63 (114) | 3083.56 (7572) | 618.00 (62) | 443.64 (114) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -17.44519665 (0.4) | -18.91 (0.9) | -17.445 (0.4) | -2.5 | |||||||
| Proper motion (declination) | [mas/yr] | -16.72042668 (0.6) | -16.04 (1) | -16.72 (0.6) | -8.0 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.68 (0.1) | |||||||||||
| H magnitude | 16.00 (0.2) | |||||||||||
| K magnitude | 15.58 (0.2) | |||||||||||
| u magnitude | 18.64 (0.02) | 18.58 | 18.64 (0.02) | 18.58 (0.03) | 18.58 | 18.62 (0.03) | ||||||
| g magnitude | 18.57 (0.007) | 18.55 | 18.57 (0.007) | 18.55 (0.02) | 18.55 | 18.57 (0.02) | ||||||
| r magnitude | 18.82 (0.01) | 18.82 | 18.83 (0.01) | 18.82 (0.03) | 18.82 | 18.82 (0.03) | ||||||
| i magnitude | 18.55 (0.01) | 18.56 | 18.55 (0.01) | 18.56 (0.02) | 18.56 | 18.56 (0.02) | ||||||
| z magnitude | 18.05 (0.02) | 18.03 | 18.03 (0.02) | 18.03 (0.02) | 18.03 | 18.03 (0.02) | ||||||
| G magnitude | 18.73 (0.01) | 18.66 | 18.73 (0.006) | |||||||||
| BP magnitude | 18.68 (0.01) | 18.63 | ||||||||||
| RP magnitude | 18.10 (0.01) | 18.07 | ||||||||||
| Pan g magnitude | 18.62 (0.007) | |||||||||||
| Pan r magnitude | 18.85 (0.01) | |||||||||||
| Pan i magnitude | 18.56 (0.004) | |||||||||||
| Pan z magnitude | 18.16 (0.008) | |||||||||||
| Pan y magnitude | 17.89 (0.02) | |||||||||||
| E(B-V) | 0.016 | |||||||||||
* 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.