All names: Gaia DR3 1763098574822301824, Gaia EDR3 1763098574822301824, Gaia DR2 1763098574822301824, WD 2045+160, GALEX J204805.5+161540, SDSS J204805.52+161540.8, [HHD2009] SDSS J2048+1615, SDSS J204805.53+161540.8
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 48 05.53 (0.5) | 20 48 05.53 | 20 48 05.53 (0.8) | 20 48 05.53 | 20 48 05.52 (0.5) | 20 48 05.33 | 20 48 05.53 | |||
| Declination | 16 15 40.75 (0.4) | 16 15 40.80 | 16 15 40.75 (0.9) | 16 15 40.79 | 16 15 40.81 (0.4) | 16 15 37.08 | 16 15 40.80 | |||
| Spectral type | DA+M | DA+M | DA2.9 M | DA+M | DA+MS | |||||
| Effective temperature | [K] | 17304.0 (933) | 20801.0 (755) | |||||||
| log(g) | [cgs] | 7.98 (0.2) | 7.22 (0.1) | |||||||
| Mass | [M☉] | 0.61 (0.1) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.51 (0.6) | 1.71 (1) | 1.51 (0.6) | ||||||
| Distance | [pc] | 662.61 (280) | 585.96 (427) | 726.00 (136) | 662.60 (280) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 7.107325492 (0.6) | 5.547342125 (2) | 7.107 (0.6) | ||||||
| Proper motion (declination) | [mas/yr] | -3.27294849 (0.6) | -1.430715655 (1) | -3.273 (0.6) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.69 (0.06) | 20.93 | 20.90 (0.08) | 20.92 | 20.86 (0.08) | |||||
| g magnitude | 20.16 (0.02) | 20.34 | 20.25 (0.02) | 20.33 | 20.26 (0.3) | |||||
| r magnitude | 20.47 (0.03) | 20.04 | 20.48 (0.03) | 20.03 | 20.47 (0.5) | |||||
| i magnitude | 24.30 (0.6) | 19.17 | 20.52 (0.06) | 19.16 | 20.53 (6) | |||||
| z magnitude | 20.65 (0.2) | 18.43 | 21.23 (0.7) | 18.42 | 21.29 (0.6) | |||||
| G magnitude | 20.22 (0.06) | 20.29 | 20.22 (0.005) | |||||||
| BP magnitude | 20.23 (0.06) | 20.04 | ||||||||
| RP magnitude | 20.09 (0.1) | 19.89 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.053 | |||||||||
* 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.