All names: SDSS J094806.63+244059.9, WDJ094806.61+244059.73, Gaia DR2 643229626692471040, J0948+2441, SDSS J094806.62+244059.8, GALEX J094806.6+244100, Gaia DR3 643229626692471040, Gaia EDR3 643229626692471040
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 48 06.64 (0.06) | 09 48 06.63 | 09 48 06.64 (0.1) | 09 48 06.64 | 09 48 06.61 (0.07) | 09 48 06.64 | 09 48 06.63 | |||||||
| Declination | 24 41 00.01 (0.06) | 24 40 59.87 | 24 41 00.00 (0.09) | 24 41 00.01 | 24 40 59.73 (0.06) | 24 41 00.00 | 24 40 59.90 | |||||||
| Spectral type | DA | DA | DA | DA | DA | |||||||||
| Effective temperature | [K] | 9002.0 (41) | 8959.0 | 8739.0 | 8779.0 (82) | 8916.0 (22) | ||||||||
| log(g) | [cgs] | 8.13 (0.01) | 8.12 | 8.03 | 8.06 (0.02) | 8.17 (0.03) | ||||||||
| Mass | [M☉] | 0.674 (0.01) | 0.669 | 0.596 | 0.634 (0.02) | 0.696 (0.02) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.9900 | 0.9547 | 0.9232 | ||||||||||
| 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] | 12.00 (0.09) | 12.15 (0.1) | 12.15 (0.1) | 12.00 | 12.00 (0.09) | 12.15 (0.1) | |||||||
| Distance | [pc] | 83.30 (0.6) | 82.30 (0.9) | 82.33 (1) | 83.30 | 83.30 (0.6) | 82.33 (1) | |||||||
| Composition | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 24.8068206 (0.1) | 24.96418687 (0.2) | 24.807 (0.1) | 24.96418687 | |||||||||
| Proper motion (declination) | [mas/yr] | 17.45497261 (0.07) | 17.33343287 (0.1) | 17.455 (0.07) | 17.33343287 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 17.04 (0.02) | |||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 17.74 (0.01) | 17.74 (0.01) | 17.74 (0.01) | 17.74 (0.01) | 17.76 (0.02) | |||||||||
| g magnitude | 17.33 (0.005) | 17.33 (0.005) | 17.33 (0.005) | 17.33 (0.02) | ||||||||||
| r magnitude | 17.36 (0.005) | 17.36 (0.005) | 17.36 (0.005) | 17.37 (0.02) | ||||||||||
| i magnitude | 17.42 (0.007) | 17.42 (0.007) | 17.42 (0.007) | 17.44 (0.03) | ||||||||||
| z magnitude | 17.55 (0.02) | 17.55 (0.02) | 17.55 (0.02) | 17.55 (0.02) | ||||||||||
| G magnitude | 17.29 (0.004) | 17.31 | 17.29 | 17.29 (0.003) | 17.31 | |||||||||
| BP magnitude | 17.39 (0.004) | 17.38 | 17.38 | |||||||||||
| RP magnitude | 17.14 (0.006) | 17.14 | 17.14 | |||||||||||
| Pan g magnitude | 17.36 (0.003) | 17.36 (0.003) | ||||||||||||
| Pan r magnitude | 17.36 (0.004) | 17.36 (0.004) | ||||||||||||
| Pan i magnitude | 17.44 (0.002) | 17.44 (0.002) | ||||||||||||
| Pan z magnitude | 17.57 (0.005) | 17.57 (0.005) | ||||||||||||
| Pan y magnitude | 17.68 (0.01) | 17.68 (0.009) | ||||||||||||
| E(B-V) | 0.004 | |||||||||||||
* 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.