All names: Gaia DR2 872781304949660544, LAMOST J072816.72+273118.9, Gaia EDR3 872781304949660544, SDSS J072816.72+273118.9, WD 0725+276, 1RXS J072817.0+273129, Gaia DR3 872781304949660544, RX J0728+275, USNO-B1.0 1175-00186082
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 28 16.72 (0.09) | 07 28 16.72 (0.1) | 07 28 16.72 | 07 28 16.72 (0.09) | 07 28 16.15 | ||||
| Declination | 27 31 19.00 (0.09) | 27 31 19.00 (0.1) | 27 31 19.00 | 27 31 18.93 (0.09) | 27 31 25.68 | ||||
| Spectral type | DA | DA | DA | DA1.0 | DA1 | ||||
| Effective temperature | [K] | 49011.0 (949) | 49200.0 (1445) | 53029.0 (12826) | |||||
| log(g) | [cgs] | 8.00 (0.08) | 7.69 (0.1) | 8.03 (0.1) | |||||
| Mass | [M☉] | 0.69 (0.04) | 0.56 (0.04) | 0.709 (0.1) | |||||
| 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] | 2.41 (0.1) | 2.37 (0.2) | 2.41 | 2.41 (0.1) | ||||
| Distance | [pc] | 414.38 (20) | 421.30 (28) | 465.00 | 414.38 | 414.39 (20) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -3.613865373 (0.1) | -3.917470089 (0.2) | -3.614 (0.1) | |||||
| Proper motion (declination) | [mas/yr] | 4.223434321 (0.1) | 4.198034564 (0.2) | 4.223 (0.1) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.90 | ||||||||
| V magnitude | |||||||||
| R magnitude | 17.60 | ||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 16.63 (0.01) | ||||||||
| g magnitude | 17.01 (0.01) | ||||||||
| r magnitude | 17.52 (0.01) | ||||||||
| i magnitude | 17.87 (0.01) | ||||||||
| z magnitude | 18.25 (0.03) | ||||||||
| G magnitude | 17.26 (0.008) | 17.29 | 17.26 | 17.26 (0.003) | |||||
| BP magnitude | 17.12 (0.008) | 17.02 | |||||||
| RP magnitude | 17.62 (0.02) | 17.55 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.023 | ||||||||
* 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.