All names: 2MASS J20454187-0509258, [SGR2010] J2045-0509, Gaia DR3 6914300071229337856, SDSS J204541.91-050925.7, Gaia EDR3 6914300071229337856, WD 2043-053, Gaia DR2 6914300071229337856, [HHD2009] SDSS J2045-0509, TIC 248258170, SDSS J204541.90-050925.7, SBC9 3398
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 45 41.90 (0.2) | 20 45 41.91 | 20 45 41.90 (0.3) | 20 45 41.90 | 20 45 41.91 (0.2) | 20 45 41.90 | 20 45 40.42 | 20 45 41.91 | ||||
| Declination | -05 09 25.93 (0.1) | -05 09 25.73 | -05 09 25.92 (0.2) | -05 09 25.70 | -05 09 25.69 (0.1) | -05 09 25.73 | -05 09 19.08 | -05 09 25.74 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA+ME | DA+M | ||||||
| Effective temperature | [K] | 26494.0 (1193) | 26510.0 (970) | 7822.0 (67) | 7489.0 (72) | |||||||
| log(g) | [cgs] | 7.69 (0.2) | 7.63 (0.1) | 8.25 (0.09) | 7.83 (0.09) | |||||||
| Mass | [M☉] | 0.49 (0.07) | 0.46 (0.06) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0155 | ||||||||||
| 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] | 1.70 (0.3) | 1.18 (0.4) | 1.70 (0.3) | ||||||||
| Distance | [pc] | 589.10 (94) | 847.27 (317) | 1344.00 (419) | 589.10 (94) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -5.708677717 (0.3) | -5.145451686 (0.6) | -5.709 (0.3) | -3.2 | |||||||
| Proper motion (declination) | [mas/yr] | -14.91392607 (0.2) | -14.2470077 (0.3) | -14.914 (0.2) | -13.4 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | yes | WDMS | ||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.71 (0.1) | |||||||||||
| H magnitude | 16.14 (0.2) | |||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.02 (0.02) | 19.04 | 19.04 (0.02) | 19.04 (0.02) | 19.04 | 19.01 (0.02) | ||||||
| g magnitude | 19.04 (0.01) | 19.04 | 19.02 (0.01) | 19.04 (0.01) | 19.04 | 19.02 (0.01) | ||||||
| r magnitude | 19.05 (0.01) | 19.06 | 19.04 (0.01) | 19.06 (0.01) | 19.06 | 19.04 (0.01) | ||||||
| i magnitude | 18.50 (0.01) | 18.51 | 18.49 (0.01) | 18.51 (0.01) | 18.52 | 18.49 (0.01) | ||||||
| z magnitude | 17.97 (0.02) | 17.99 | 17.99 (0.02) | 17.98 (0.02) | 17.98 | 17.95 (0.02) | ||||||
| G magnitude | 18.71 (0.02) | 18.73 | 18.71 (0.003) | |||||||||
| BP magnitude | 19.09 (0.02) | 19.15 | ||||||||||
| RP magnitude | 18.05 (0.02) | 18.11 | ||||||||||
| Pan g magnitude | 19.03 (0.01) | |||||||||||
| Pan r magnitude | 19.08 (0.01) | |||||||||||
| Pan i magnitude | 18.52 (0.004) | |||||||||||
| Pan z magnitude | 18.09 (0.01) | |||||||||||
| Pan y magnitude | 17.84 (0.02) | |||||||||||
| E(B-V) | 0.042 | |||||||||||
* 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.