All names: SDSS J145427.28-011005.4, SDSS J145427.25-011005.5, Gaia DR3 3650730589671206528, ULAS J145427.16-011005.8, Gaia DR2 3650730589671206528, J1454-0110, Gaia EDR3 3650730589671206528, ULAS J1454-01, WDJ145427.28-011005.50
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Gaia DR2 | Stilism | Leggett et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 54 27.06 (0.3) | 14 54 27.07 | 14 54 27.06 | 14 54 27.28 (0.3) | 14 54 27.07 | ||||||
| Declination | -01 10 06.10 (0.2) | -01 10 06.08 | -01 10 06.10 | -01 10 05.51 (0.2) | -01 10 06.08 | ||||||
| Spectral type | DC | DC | DC | DA: | DC | ||||||
| Effective temperature | [K] | 4635.0 (40) | 4606.0 (40) | 4800.0 (60) | 4769.0 (144) | ||||||
| log(g) | [cgs] | 7.91 (0.03) | 8.06 (0.05) | 8.03 (0.08) | |||||||
| Mass | [M☉] | 0.526 (0.03) | 0.613 (0.04) | 0.596 (0.07) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 8.3900 | 6.5000 | ||||||||
| 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] | 15.41 (0.3) | 16.69 (0.7) | 16.69 (0.6) | 15.41 | 15.41 (0.3) | 16.69 (0.6) | ||||
| Distance | [pc] | 64.88 (1) | 59.92 (2) | 59.90 (2) | 65.00 (15) | 64.88 | 64.88 (1) | 59.90 (2) | |||
| Composition | H | H | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | -202.940234 (0.3) | -202.284881 (0.8) | -202.94 (0.3) | -202.284881 | ||||||
| Proper motion (declination) | [mas/yr] | -36.71260331 (0.3) | -37.62662621 (0.8) | -36.713 (0.3) | -37.62662621 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.76 (0.04) | 17.77 (0.04) | |||||||||
| H magnitude | 17.64 (0.03) | 17.68 (0.09) | |||||||||
| K magnitude | 17.49 (0.03) | 17.56 (0.1) | |||||||||
| u magnitude | 21.86 (0.1) | 21.86 (0.1) | 21.86 (0.1) | ||||||||
| g magnitude | 20.01 (0.02) | 20.01 (0.02) | |||||||||
| r magnitude | 19.12 (0.01) | 19.12 (0.01) | |||||||||
| i magnitude | 18.79 (0.01) | 18.79 (0.01) | |||||||||
| z magnitude | 18.65 (0.03) | 18.65 (0.03) | |||||||||
| G magnitude | 19.17 (0.07) | 19.21 | 19.17 | 19.17 (0.004) | 19.21 | ||||||
| BP magnitude | 19.88 (0.07) | 19.82 | 19.82 | ||||||||
| RP magnitude | 18.52 (0.03) | 18.46 | 18.46 | ||||||||
| Pan g magnitude | 19.89 (0.02) | 19.89 (0.02) | |||||||||
| Pan r magnitude | 19.16 (0.004) | 19.16 (0.004) | |||||||||
| Pan i magnitude | 18.81 (0.007) | 18.81 (0.005) | |||||||||
| Pan z magnitude | 18.69 (0.01) | 18.69 (0.01) | |||||||||
| Pan y magnitude | 18.65 (0.03) | 18.65 (0.02) | |||||||||
| E(B-V) | 0.003 | ||||||||||
* 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.