All names: LSPM J1728+0721S, ** LDS 4743B, SDSS J172830.65+072112.5, WDS J17285+0722B, LP567-038, SDSS J172830.65+072112.6, Gaia DR3 4487104139751321472, NLTT 44853, Gaia DR2 4487104139751321472, WD 1726+074.1, LP 567-38, Gaia EDR3 4487104139751321472
| Parameter | Unit | Gaia EDR3 | Kilic et al. 2025 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 28 30.59 (0.1) | 17 28 30.60 (0.2) | 17 28 30.59 | 17 28 30.68 (0.1) | 17 28 31.22 | |||
| Declination | 07 21 09.57 (0.09) | 07 21 09.71 (0.1) | 07 21 09.57 | 07 21 14.13 (0.09) | 07 21 37.44 | |||
| Spectral type | DC | DA | DC | DC? | ||||
| Effective temperature | [K] | 4853.0 (54) | 4922.0 (102) | |||||
| log(g) | [cgs] | 7.96 (0.03) | 7.97 (0.05) | |||||
| Mass | [M☉] | 0.555 (0.02) | 0.563 (0.05) | |||||
| 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] | 21.28 (0.2) | 21.52 (0.2) | 21.28 | 21.28 (0.2) | |||
| Distance | [pc] | 47.00 (0.3) | 46.47 (0.5) | 47.00 | 47.00 (0.3) | |||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -83.73832012 (0.1) | -83.27029427 (0.5) | -83.738 (0.1) | ||||
| Proper motion (declination) | [mas/yr] | -285.1589523 (0.1) | -284.0299723 (0.5) | -285.159 (0.1) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | |||||||
| B magnitude | 19.00 | |||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 20.94 (0.09) | |||||||
| g magnitude | 19.03 (0.01) | |||||||
| r magnitude | 18.27 (0.008) | |||||||
| i magnitude | 18.01 (0.008) | |||||||
| z magnitude | 17.86 (0.02) | |||||||
| G magnitude | 18.27 (0.03) | 18.31 | 18.27 | 18.27 (0.003) | ||||
| BP magnitude | 18.80 (0.03) | |||||||
| RP magnitude | 17.64 (0.03) | |||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.001 | |||||||
* 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.