All names: WD 1449+550, Gaia EDR3 1606544031877366272, GALEX J145109.3+544924, CSO 695, SDSS J145109.40+544924.6, SDSS J145109.40+544924.5, SBSS 1449+550, Gaia DR3 1606544031877366272, Gaia DR2 1606544031877366272
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | 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 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 51 09.42 (0.1) | 14 51 09.41 | 14 51 09.42 (0.1) | 14 51 09.42 | 14 51 09.40 (0.1) | 14 51 09.40 | 14 51 09.36 | 14 51 09.40 | ||||||
| Declination | 54 49 24.62 (0.1) | 54 49 24.60 | 54 49 24.62 (0.1) | 54 49 24.62 | 54 49 24.49 (0.1) | 54 49 24.56 | 54 49 18.48 | 54 49 24.56 | ||||||
| Spectral type | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 34607.0 (617) | 34750.0 (550) | 37865.0 (7472) | 34976.0 (388) | 34356.0 (422) | ||||||||
| log(g) | [cgs] | 8.06 (0.1) | 7.97 (0.1) | 7.85 (0.2) | 7.97 (0.08) | 7.93 (0.08) | ||||||||
| Mass | [M☉] | 0.69 (0.06) | 0.64 (0.06) | 0.589 (0.1) | 0.618 (0.04) | |||||||||
| log(Luminosity) | [L☉] | -0.67 (0.08) | ||||||||||||
| Cooling age | [Gyr] | 0.0056 (0.0004) | 0.0066 | |||||||||||
| 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] | 1.50 (0.1) | 1.35 (0.2) | 1.50 | 1.50 (0.1) | |||||||||
| Distance | [pc] | 665.28 (52) | 739.22 (92) | 665.28 | 665.29 (52) | |||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 9.136698535 (0.1) | 9.470869931 (0.2) | 9.137 (0.1) | 4.1 | |||||||||
| Proper motion (declination) | [mas/yr] | 8.621854744 (0.1) | 8.720317853 (0.3) | 8.622 (0.1) | 8.2 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 17.00 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 17.94 (0.01) | 17.94 (0.01) | 17.98 (0.02) | 17.98 | 17.94 (0.02) | |||||||||
| g magnitude | 18.24 (0.007) | 18.24 (0.007) | 18.28 (0.02) | 18.28 | 18.27 (0.02) | |||||||||
| r magnitude | 18.71 (0.009) | 18.71 (0.009) | 18.69 (0.02) | 18.69 | 18.69 (0.02) | |||||||||
| i magnitude | 19.08 (0.01) | 19.09 (0.01) | 19.07 (0.02) | 19.07 | 19.07 (0.02) | |||||||||
| z magnitude | 19.33 (0.05) | 19.33 (0.05) | 19.28 (0.04) | 19.28 | 19.29 (0.04) | |||||||||
| G magnitude | 18.47 (0.02) | 18.50 | 18.47 | 18.47 (0.003) | ||||||||||
| BP magnitude | 18.35 (0.02) | 18.27 | ||||||||||||
| RP magnitude | 18.75 (0.03) | 18.75 | ||||||||||||
| Pan g magnitude | 18.29 (0.006) | |||||||||||||
| Pan r magnitude | 18.74 (0.008) | |||||||||||||
| Pan i magnitude | 19.07 (0.01) | |||||||||||||
| Pan z magnitude | 19.32 (0.01) | |||||||||||||
| Pan y magnitude | 19.42 (0.05) | |||||||||||||
| E(B-V) | 0.020 | |||||||||||||
* 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.