All names: FBS B 1039, SDSS J182509.27+775535.3, WD 1827+778, FBS 1827+779, TIC 367840218, SDSS J182509.24+775535.3, WIRED J182509.26+775535.3, Gaia DR3 2293584970689547264, Gaia EDR3 2293584970689547264, GALEX J182509.6+775535, Gaia DR2 2293584970689547264, HS 1827+7753, SDSS J182509.26+775535.3, 2MASS J18250928+7755351
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 18 25 09.22 (0.03) | 18 25 09.25 | 18 25 09.22 (0.05) | 18 25 09.22 | 18 25 09.26 (0.03) | 18 25 08.98 | 18 25 09.27 | |||||
| Declination | 77 55 35.70 (0.04) | 77 55 35.36 | 77 55 35.69 (0.07) | 77 55 35.70 | 77 55 35.29 (0.04) | 77 55 37.56 | 77 55 35.33 | |||||
| Spectral type | DA | DA | DA | DA.7 | DA.66 | DA | DA | |||||
| Effective temperature | [K] | 81049.0 (2376) | 72950.0 (2565) | 79121.0 (1491) | ||||||||
| log(g) | [cgs] | 7.43 (0.07) | 7.46 (0.1) | 7.46 (0.07) | ||||||||
| Mass | [M☉] | 0.56 (0.02) | 0.55 (0.03) | 0.568 (0.02) | ||||||||
| log(Luminosity) | [L☉] | 1.34 (0.08) | ||||||||||
| Cooling age | [Gyr] | 0.0001 (0.0001) | ||||||||||
| 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] | 2.31 (0.04) | 2.45 (0.06) | 2.31 | 2.31 (0.04) | |||||||
| Distance | [pc] | 432.11 (7) | 408.91 (1e+01) | 393.00 | 432.11 | 432.11 (7) | ||||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.984300942 (0.05) | -7.933332894 (0.1) | -7.984 (0.05) | ||||||||
| Proper motion (declination) | [mas/yr] | 25.25832084 (0.05) | 25.20973067 (0.1) | 25.258 (0.05) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.64 (0.2) | |||||||||||
| H magnitude | 15.84 (0.2) | |||||||||||
| K magnitude | 15.84 (0.04) | |||||||||||
| u magnitude | 15.44 (0.004) | 15.44 (0.004) | 15.47 (0.02) | |||||||||
| g magnitude | 15.80 (0.003) | 15.80 (0.003) | 15.83 (0.01) | |||||||||
| r magnitude | 16.28 (0.004) | 16.28 (0.004) | 16.29 (0.01) | |||||||||
| i magnitude | 16.62 (0.005) | 16.62 (0.005) | 16.63 (0.01) | |||||||||
| z magnitude | 16.91 (0.01) | 16.91 (0.01) | 16.92 (0.02) | |||||||||
| G magnitude | 16.07 (0.003) | 16.10 | 16.07 | 16.07 (0.003) | ||||||||
| BP magnitude | 15.93 (0.003) | 15.87 | ||||||||||
| RP magnitude | 16.34 (0.005) | 16.33 | ||||||||||
| Pan g magnitude | ||||||||||||
| Pan r magnitude | ||||||||||||
| Pan i magnitude | ||||||||||||
| Pan z magnitude | ||||||||||||
| Pan y magnitude | ||||||||||||
| E(B-V) | 0.051 | |||||||||||
* 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.