All names: Gaia DR2 933464549981479680, Gaia EDR3 933464549981479680, 2MASS J07473355+4720043, SDSS J074733.54+472003.9, WD 0743+474, [HHD2009] SDSS J0747+4720, Gaia DR3 933464549981479680, SDSS J074733.54+472004.0, SDSS J074733.47+472003.5, WIRED J074733.54+472003.9, TIC 241180977, GALEX J074733.4+472003
| 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 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 47 33.52 (0.2) | 07 47 33.55 | 07 47 33.52 (0.3) | 07 47 33.54 | 07 47 33.55 (0.2) | 07 47 33.54 | 07 47 33.79 | 07 47 33.54 | |||||
| Declination | 47 20 03.22 (0.2) | 47 20 03.97 | 47 20 03.25 (0.2) | 47 20 03.91 | 47 20 04.16 (0.2) | 47 20 04.00 | 47 19 57.72 | 47 20 04.00 | |||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA d | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 19868.0 (561) | 20560.0 (650) | 9488.0 (54) | 9382.0 (56) | ||||||||
| log(g) | [cgs] | 7.71 (0.1) | 7.81 (0.1) | 8.51 (0.06) | 8.31 (0.07) | ||||||||
| Mass | [M☉] | 0.48 (0.05) | 0.53 (0.05) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.0447 | |||||||||||
| 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] | 3.26 (0.3) | 3.36 (0.4) | 3.26 (0.3) | |||||||||
| Distance | [pc] | 306.49 (26) | 297.27 (32) | 300.00 (23) | 306.49 (26) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -24.57375397 (0.3) | -24.89335705 (0.5) | -24.574 (0.3) | -125.5 | ||||||||
| Proper motion (declination) | [mas/yr] | -58.55003931 (0.2) | -59.84671969 (0.4) | -58.55 (0.2) | -67.4 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.29 (0.1) | ||||||||||||
| H magnitude | 15.61 (0.1) | ||||||||||||
| K magnitude | 15.81 (0.06) | ||||||||||||
| u magnitude | 18.79 (0.02) | 18.79 | 18.78 (0.02) | 18.79 (0.02) | 18.79 | 18.78 (0.02) | |||||||
| g magnitude | 18.59 (0.008) | 18.57 | 18.56 (0.008) | 18.57 (0.02) | 18.57 | 18.57 (0.02) | |||||||
| r magnitude | 18.70 (0.009) | 18.73 | 18.71 (0.01) | 18.73 (0.02) | 18.73 | 18.74 (0.02) | |||||||
| i magnitude | 18.28 (0.009) | 18.25 | 18.24 (0.01) | 18.25 (0.02) | 18.25 | 18.25 (0.02) | |||||||
| z magnitude | 17.66 (0.02) | 17.66 | 17.64 (0.02) | 17.66 (0.03) | 17.66 | 17.65 (0.03) | |||||||
| G magnitude | 18.42 (0.03) | 18.40 | 18.42 (0.004) | ||||||||||
| BP magnitude | 18.74 (0.03) | 18.59 | |||||||||||
| RP magnitude | 17.86 (0.03) | 17.75 | |||||||||||
| Pan g magnitude | 18.59 (0.009) | ||||||||||||
| Pan r magnitude | 18.69 (0.006) | ||||||||||||
| Pan i magnitude | 18.25 (0.007) | ||||||||||||
| Pan z magnitude | 17.78 (0.008) | ||||||||||||
| Pan y magnitude | 17.51 (0.02) | ||||||||||||
| E(B-V) | 0.032 | ||||||||||||
* 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.