All names: Gaia DR2 894000363240700800, Gaia DR3 894000363240700800, [VV2006b] J074252.0+331354, Gaia EDR3 894000363240700800, GALEX J074251.9+331355, SDSS J074251.97+331354.4, WDJ074251.98+331354.23, SDSS J074251.98+331354.2, SDSS J074251.97+331354.1, SDSS J074251.97+331354.2, WD 0739+333
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2026a | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 42 51.97 (0.4) | 07 42 51.97 | 07 42 51.97 (0.6) | 07 42 51.98 (0.4) | 07 42 51.97 | 07 42 51.41 | 07 42 51.97 | |||||
| Declination | 33 13 54.13 (0.2) | 33 13 54.15 | 33 13 54.14 (0.4) | 33 13 54.24 (0.2) | 33 13 54.28 | 33 13 51.60 | 33 13 54.35 | |||||
| Spectral type | DAH | DA | DA | DA | DA: | DC | ||||||
| Effective temperature | [K] | 42194.0 (5017) | 39191.0 (823) | 100000.0 (1190) | ||||||||
| log(g) | [cgs] | 9.42 (0.1) | 7.08 (0.09) | 5.02 (0.03) | ||||||||
| Mass | [M☉] | 1.335 (0.03) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(Li/H) | ||||||||||||
| log(Be/H) | ||||||||||||
| log(B/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(Cl/H) | ||||||||||||
| log(K/H) | ||||||||||||
| log(Sc/H) | ||||||||||||
| log(Ti/H) | ||||||||||||
| log(V/H) | ||||||||||||
| log(Cr/H) | ||||||||||||
| log(Mn/H) | ||||||||||||
| log(Fe/H) | ||||||||||||
| log(Co/H) | ||||||||||||
| log(Ni/H) | ||||||||||||
| log(Cu/H) | ||||||||||||
| log(Sr/H) | ||||||||||||
| Parallax | [mas] | 3.35 (0.4) | 3.21 (0.8) | 3.35 (0.4) | ||||||||
| Distance | [pc] | 298.31 (37) | 311.84 (76) | 298.31 (38) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -10.97334282 (0.5) | -11.43014844 (1) | -10.973 (0.5) | -6.6 | |||||||
| Proper motion (declination) | [mas/yr] | -6.942030305 (0.3) | -6.217528714 (0.6) | -6.942 (0.3) | -2.6 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | 19.81 | |||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.07 (0.02) | 19.07 (0.02) | 19.11 (0.03) | 19.10 | 19.10 (0.03) | |||||||
| g magnitude | 19.56 (0.01) | 19.56 (0.01) | 19.54 (0.02) | 19.54 | 19.55 (0.02) | |||||||
| r magnitude | 19.96 (0.02) | 19.96 (0.02) | 20.04 (0.02) | 20.03 | 20.03 (0.02) | |||||||
| i magnitude | 20.40 (0.03) | 20.40 (0.03) | 20.26 (0.04) | 20.26 | 20.26 (0.04) | |||||||
| z magnitude | 20.77 (0.1) | 20.77 (0.1) | 20.52 (0.1) | 20.52 | 20.52 (0.1) | |||||||
| G magnitude | 19.77 (0.03) | 19.83 | 19.77 (0.005) | |||||||||
| BP magnitude | 19.64 (0.03) | 19.52 | ||||||||||
| RP magnitude | 19.91 (0.07) | 20.04 | ||||||||||
| Pan g magnitude | 19.64 (0.01) | |||||||||||
| Pan r magnitude | 19.99 (0.008) | |||||||||||
| Pan i magnitude | 20.37 (0.02) | |||||||||||
| Pan z magnitude | 20.54 (0.03) | |||||||||||
| Pan y magnitude | ||||||||||||
| E(B-V) | 0.021 | |||||||||||
* 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.