All names: SDSS J150953.63+543944.7, SDSS J150953.65+543945.4, CBS 304, SBSS 1508+548, Gaia DR3 1600172155835980800, 2MASS J15095366+5439455, Gaia EDR3 1600172155835980800, WDJ150953.67+543945.38, SDSS J150953.66+543945.5, WD 1508+548, PG 1508+549, Gaia DR2 1600172155835980800, GALEX J150953.6+543945, SDSS J150953.66+543945.4, [BGK2006] J150953.67+543945.5, SDSS J150953.64+543944.7, TIC 165624606
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 09 53.63 (0.02) | 15 09 53.66 | 15 09 53.63 (0.03) | 15 09 53.63 | 15 09 53.67 (0.02) | 15 09 53.63 | 15 09 53.28 | |||||||
| Declination | 54 39 44.56 (0.03) | 54 39 45.41 | 54 39 44.58 (0.04) | 54 39 44.56 | 54 39 45.38 (0.03) | 54 39 44.58 | 54 39 40.68 | |||||||
| Spectral type | DA | DA | DA2.9 | DA3 | DA | |||||||||
| Effective temperature | [K] | 16064.0 | 17763.0 | 17630.0 (272) | 17023.0 (183) | |||||||||
| log(g) | [cgs] | 7.92 | 8.12 | 7.98 (0.05) | 7.99 (0.01) | |||||||||
| Mass | [M☉] | 0.572 | 0.667 | 0.61 (0.03) | 0.609 (0.008) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.1386 | 0.1440 | |||||||||||
| 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] | 11.66 (0.03) | 11.65 (0.04) | 11.66 | 11.66 (0.03) | 11.65 (0.04) | ||||||||
| Distance | [pc] | 85.75 (0.2) | 85.83 (0.3) | 85.00 | 85.75 | 85.75 (0.2) | 85.83 (0.3) | |||||||
| Composition | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -22.06885793 (0.03) | -22.1635537 (0.06) | -22.069 (0.03) | -22.1635537 | |||||||||
| Proper motion (declination) | [mas/yr] | -51.45241686 (0.04) | -51.26737141 (0.07) | -51.452 (0.04) | -51.26737141 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 15.71 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.12 (0.009) | |||||||||||||
| H magnitude | 16.14 (0.02) | |||||||||||||
| K magnitude | 16.28 (0.05) | |||||||||||||
| u magnitude | 15.76 (0.005) | 15.76 (0.005) | 15.76 (0.005) | |||||||||||
| g magnitude | 15.54 (0.003) | 15.54 (0.003) | 15.54 (0.003) | |||||||||||
| r magnitude | 15.88 (0.003) | 15.88 (0.003) | 15.88 (0.003) | |||||||||||
| i magnitude | 16.16 (0.004) | 16.16 (0.004) | 16.16 (0.004) | |||||||||||
| z magnitude | 16.44 (0.009) | 16.44 (0.009) | 16.44 (0.009) | |||||||||||
| G magnitude | 15.73 (0.002) | 15.75 | 15.73 | 15.73 (0.003) | 15.75 | |||||||||
| BP magnitude | 15.67 (0.002) | 15.66 | 15.66 | |||||||||||
| RP magnitude | 15.87 (0.003) | 15.87 | 15.87 | |||||||||||
| Pan g magnitude | 15.61 (0.003) | |||||||||||||
| Pan r magnitude | 15.90 (0.0008) | |||||||||||||
| Pan i magnitude | 16.18 (0.004) | |||||||||||||
| Pan z magnitude | 16.44 (0.005) | |||||||||||||
| Pan y magnitude | 16.60 (0.006) | |||||||||||||
| E(B-V) | 0.010 | |||||||||||||
* 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.