All names: SDSS J234818.15-003713.7, SDSS J234818.15-003713.9, WD 2345-008, SDSS J234818.16-003713.6, LEDA 72463, USNO-B1.0 0893-00627482, Gaia DR2 2641865135735601024, Gaia EDR3 2641865135735601024, Gaia DR3 2641865135735601024, 2SLAQ J234818.15-003713.7, GALEX J234818.1-003714, UM 179, SDSS J234818.16-003713.7, SDSS J234818.15-003713.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 48 18.13 (0.1) | 23 48 18.16 | 23 48 18.13 (0.2) | 23 48 18.13 | 23 48 18.16 (0.1) | 23 48 18.16 | 23 48 17.81 | 23 48 18.16 | 23 48 18.16 | |||||
| Declination | -00 37 14.52 (0.1) | -00 37 13.67 | -00 37 14.50 (0.1) | -00 37 14.52 | -00 37 13.65 (0.1) | -00 37 13.74 | -00 37 07.32 | -00 37 13.73 | -00 37 13.73 | |||||
| Spectral type | DA | DA | DA | DA | DA5.9 | DA | DA | |||||||
| Effective temperature | [K] | 8250.0 (80) | 8371.0 (236) | 8468.0 (46) | 8120.0 (48) | 8516.0 (53) | ||||||||
| log(g) | [cgs] | 8.34 (0.1) | 8.13 (0.05) | 8.60 (0.09) | 8.14 (0.1) | 8.75 (0.1) | ||||||||
| Mass | [M☉] | 0.81 (0.07) | 0.675 (0.04) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 1.8621 | ||||||||||||
| 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] | 9.41 (0.2) | 9.36 (0.3) | 9.41 | 9.41 (0.2) | |||||||||
| Distance | [pc] | 106.22 (2) | 106.86 (3) | 106.22 | 106.22 (2) | |||||||||
| Composition | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -32.7210521 (0.2) | -32.05676533 (0.4) | -32.721 (0.2) | -34.5 | -35.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -54.92065876 (0.1) | -54.92566234 (0.3) | -54.921 (0.1) | -59.1 | -59.0 | ||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 17.70 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 18.00 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.65 (0.02) | 18.65 (0.02) | 18.59 (0.02) | 18.56 | 18.56 (0.02) | 18.56 (0.03) | ||||||||
| g magnitude | 18.16 (0.007) | 18.16 (0.007) | 18.21 (0.02) | 18.20 | 18.20 (0.02) | 18.20 (0.03) | ||||||||
| r magnitude | 18.14 (0.007) | 18.14 (0.007) | 18.18 (0.02) | 18.17 | 18.17 (0.02) | 18.17 (0.02) | ||||||||
| i magnitude | 18.14 (0.009) | 18.14 (0.009) | 18.13 (0.02) | 18.12 | 18.11 (0.02) | 18.12 (0.02) | ||||||||
| z magnitude | 18.19 (0.02) | 18.19 (0.02) | 18.29 (0.03) | 18.28 | 18.27 (0.03) | 18.28 (0.03) | ||||||||
| G magnitude | 18.09 (0.01) | 18.12 | 18.09 | 18.09 (0.003) | ||||||||||
| BP magnitude | 18.24 (0.01) | 18.24 | ||||||||||||
| RP magnitude | 17.89 (0.01) | 17.86 | ||||||||||||
| Pan g magnitude | 18.16 (0.008) | |||||||||||||
| Pan r magnitude | 18.13 (0.009) | |||||||||||||
| Pan i magnitude | 18.19 (0.006) | |||||||||||||
| Pan z magnitude | 18.27 (0.007) | |||||||||||||
| Pan y magnitude | 18.31 (0.01) | |||||||||||||
| E(B-V) | 0.006 | |||||||||||||
* 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.