All names: Pul -3 520093, Mrk 393, WDJ090942.02+601928.10, SDSS J090942.03+601928.2, Gaia DR3 1039435691120199936, Gaia DR2 1039435691120199936, SBSG 0905+605, WIRED J090942.02+601928.1, SBSS 0905+605, SDSS J090942.03+601928.1, USNO-A2.0 1500-05144054, GALEX J090941.9+601928, SDSS J090942.02+601928.1, UCAC4 752-045520, J0909+6019, WD 0905+605, 2MASS J09094202+6019280, Gaia EDR3 1039435691120199936, TIC 417825709
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 09 42.05 (0.03) | 09 09 42.03 | 09 09 42.05 (0.04) | 09 09 42.05 | 09 09 42.02 (0.03) | 09 09 42.05 | 09 09 36.07 | 09 09 42.03 | |||||||||
| Declination | 60 19 28.32 (0.03) | 60 19 28.16 | 60 19 28.31 (0.04) | 60 19 28.32 | 60 19 28.10 (0.03) | 60 19 28.31 | 60 17 48.12 | 60 19 28.17 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA5.7 | DA | DA | DA | |||||||
| Effective temperature | [K] | 8583.0 (36) | 8439.0 (32) | 8583.0 (35) | 8597.0 | 8860.0 (130) | 8568.0 (51) | 8532.0 (22) | |||||||||
| log(g) | [cgs] | 8.12 (0.006) | 8.08 (0.006) | 8.12 (0.007) | 8.13 | 8.37 (0.06) | 8.12 (0.01) | 8.27 (0.03) | |||||||||
| Mass | [M☉] | 0.671 (0.006) | 0.644 (0.006) | 0.672 (0.006) | 0.674 | 0.83 (0.04) | 0.667 (0.009) | 0.757 (0.02) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||
| Cooling age | [Gyr] | 1.0900 | 1.0800 | ||||||||||||||
| 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] | 21.00 (0.04) | 21.03 (0.05) | 21.03 (0.05) | 21.00 | 21.00 (0.04) | 21.03 (0.05) | ||||||||||
| Distance | [pc] | 47.63 (0.09) | 47.55 (0.1) | 47.55 (0.1) | 42.00 | 47.63 | 47.63 (0.09) | 47.55 (0.1) | |||||||||
| Composition | H | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 14.91675847 (0.03) | 14.93087148 (0.09) | 14.917 (0.03) | 14.93087148 | ||||||||||||
| Proper motion (declination) | [mas/yr] | 13.82549401 (0.04) | 13.69868974 (0.09) | 13.825 (0.04) | 13.69868974 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 16.56 (0.2) | ||||||||||||||||
| V magnitude | 16.15 (0.05) | ||||||||||||||||
| R magnitude | 16.30 | ||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 15.98 (0.07) | 15.98 (0.07) | |||||||||||||||
| H magnitude | 15.70 (0.1) | 15.70 (0.1) | |||||||||||||||
| K magnitude | 15.50 (0.06) | 15.50 (0.06) | |||||||||||||||
| u magnitude | 16.73 (0.007) | 16.72 (0.007) | 16.73 (0.007) | 16.73 (0.007) | 16.75 (0.02) | ||||||||||||
| g magnitude | 16.32 (0.003) | 16.32 (0.003) | 16.32 (0.003) | 16.36 (0.02) | |||||||||||||
| r magnitude | 16.31 (0.004) | 16.31 (0.004) | 16.31 (0.004) | 16.31 (0.01) | |||||||||||||
| i magnitude | 16.38 (0.005) | 16.38 (0.005) | 16.38 (0.005) | 16.39 (0.02) | |||||||||||||
| z magnitude | 16.51 (0.009) | 16.51 (0.009) | 16.51 (0.009) | 16.50 (0.02) | |||||||||||||
| G magnitude | 16.25 (0.003) | 16.27 | 16.25 | 16.25 (0.003) | 16.27 | ||||||||||||
| BP magnitude | 16.36 (0.003) | 16.34 | 16.34 | ||||||||||||||
| RP magnitude | 16.07 (0.003) | 16.07 | 16.07 | ||||||||||||||
| Pan g magnitude | 16.34 (0.003) | 16.34 (0.003) | |||||||||||||||
| Pan r magnitude | 16.32 (0.002) | 16.32 (0.002) | |||||||||||||||
| Pan i magnitude | 16.39 (0.002) | 16.39 (0.002) | |||||||||||||||
| Pan z magnitude | 16.50 (0.003) | 16.50 (0.003) | |||||||||||||||
| Pan y magnitude | 16.59 (0.008) | 16.59 (0.007) | |||||||||||||||
| 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.