All names: Gaia EDR3 3796414192429498880, Gaia DR3 3796414192429498880, SDSS J114833.62+012859.4, Gaia DR2 3796414192429498880, WD1145+017, HE 1145+0145, LBQS 1145+0145, WD 1145+017, EPIC 201563164
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Fortin-Archambault et al. 2020 | Gaia DR2 | Stilism | Xu et al. 2016 | Vanderburg et al. 2015 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 48 33.58 (0.08) | 11 48 33.58 (0.1) | 11 48 33.63 | 11 48 33.58 | 11 48 33.63 (0.08) | 11 48 32.86 | |||||
| Declination | 01 28 59.36 (0.06) | 01 28 59.36 (0.07) | 01 28 59.41 | 01 28 59.36 | 01 28 59.42 (0.06) | 01 28 55.20 | |||||
| Spectral type | DBZA | DB | DB | DB3.0 | |||||||
| Effective temperature | [K] | 14500.0 (900) | 15900.0 | 15900.0 (500) | 15007.0 (551) | ||||||
| log(g) | [cgs] | 8.11 (0.02) | 8.00 (0) | 8.06 (0.04) | |||||||
| Mass | [M☉] | 0.656 | 0.625 (0.04) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | -5.0 (0.2) | -4.7 (0.1) | |||||||||
| log(C/He) | -7.5 | <-4.3 | |||||||||
| log(Ca/He) | -6.57 (0.1) | ||||||||||
| log(Ca/H) | |||||||||||
| log(N/He) | <-7.0 | ||||||||||
| log(O/He) | -5.12 (0.3) | -4.3 (0.5) | |||||||||
| log(Na/He) | |||||||||||
| log(Mg/He) | -5.91 (0.2) | -5.49 (0.1) | |||||||||
| log(Al/He) | -6.89 (0.2) | -6.74 (0.1) | |||||||||
| log(Si/He) | -5.89 (0.2) | -5.69 (0.09) | |||||||||
| log(P/He) | |||||||||||
| log(S/He) | <-7.0 | ||||||||||
| log(Cl/He) | |||||||||||
| log(Sc/He) | |||||||||||
| log(Ti/He) | -8.57 (0.2) | -8.04 (0.2) | |||||||||
| log(V/He) | -9.25 (0.2) | -8.7 | |||||||||
| log(Cr/He) | -7.92 (0.4) | -7.31 (0.1) | |||||||||
| log(Mn/He) | -8.57 (0.2) | -8.25 (0.2) | |||||||||
| log(Fe/He) | -5.61 (0.2) | -5.35 (0.1) | |||||||||
| log(Co/He) | |||||||||||
| log(Ni/He) | -7.02 (0.3) | -6.24 (0.2) | |||||||||
| log(Cu/He) | |||||||||||
| log(Zn/He) | |||||||||||
| log(Ga/He) | |||||||||||
| log(Ge/He) | |||||||||||
| log(Sr/He) | |||||||||||
| Parallax | [mas] | 6.85 (0.09) | 7.06 (0.1) | 6.85 | 6.85 (0.09) | ||||||
| Distance | [pc] | 145.91 (2) | 141.67 (2) | 174.00 (75) | 145.91 | 145.91 (2) | |||||
| Composition | He | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | -43.66368786 (0.1) | -43.7095327 (0.2) | -43.3 (5) | -43.664 (0.1) | ||||||
| Proper motion (declination) | [mas/yr] | -4.026938129 (0.07) | -4.101763295 (0.1) | -7.0 (5) | -4.027 (0.07) | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | yes | yes | |||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.50 (0.03) | ||||||||||
| H magnitude | 17.53 (0.06) | ||||||||||
| K magnitude | 17.40 (0.08) | ||||||||||
| u magnitude | 16.97 (0.008) | 16.83 (0.007) | 16.87 | ||||||||
| g magnitude | 17.03 (0.004) | 16.98 (0.004) | 17.00 | ||||||||
| r magnitude | 17.38 (0.005) | 17.29 (0.005) | 17.29 | ||||||||
| i magnitude | 17.61 (0.006) | 17.56 (0.007) | 17.57 | ||||||||
| z magnitude | 17.84 (0.02) | 17.82 (0.02) | 17.81 | ||||||||
| G magnitude | 17.15 (0.008) | 17.17 | 17.15 | 17.15 (0.003) | |||||||
| BP magnitude | 17.08 (0.008) | 17.04 | |||||||||
| RP magnitude | 17.25 (0.01) | 17.23 | |||||||||
| Pan g magnitude | 17.07 (0.001) | ||||||||||
| Pan r magnitude | 17.32 (0.007) | ||||||||||
| Pan i magnitude | 17.56 (0.007) | ||||||||||
| Pan z magnitude | 17.83 (0.009) | ||||||||||
| Pan y magnitude | 17.95 (0.02) | ||||||||||
| E(B-V) | 0.012 | ||||||||||
* 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.