All names: GALEX J172406.0+562004, SDSS J172406.13+562003.0, PTF1 J172406.14+562003.1, ATO J261.0256+56.3341, Gaia DR3 1420761029600606592, TIC 284900652, 2MASS J17240613+5620033, SDSS J172406.14+562003.0, Gaia DR2 1420761029600606592, [SGR2010] J1724+5620, WIRED J172406.14+562003.0, SDSS J172406.14+562003.1, [HHD2009] SDSS J1724+5620, LAMOST J172406.14+562003.0, WD 1723+563, Gaia EDR3 1420761029600606592
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | 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 | 17 24 06.15 (0.04) | 17 24 06.14 | 17 24 06.15 (0.05) | 17 24 06.14 | 17 24 06.15 | 17 24 06.13 (0.04) | 17 24 06.14 | 17 24 05.66 | 17 24 06.14 | |||||||
| Declination | 56 20 03.07 (0.04) | 56 20 03.06 | 56 20 03.07 (0.05) | 56 20 03.01 | 56 20 03.07 | 56 20 03.09 (0.04) | 56 20 03.06 | 56 19 57.72 | 56 20 03.08 | |||||||
| Spectral type | DA+M | DA+M | DA? | DA | DA | DA+dMe | DA+M: | DA+ME | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 34733.0 (498) | 35746.0 (162) | 37999.0 (629) | 34420.0 (180) | 24018.0 (450) | 36522.0 (53) | 36077.0 (181) | ||||||||
| log(g) | [cgs] | 7.22 (0.09) | 7.46 (0.04) | 7.15 (0.1) | 7.27 (0.04) | 6.57 (0.03) | 7.26 (0.02) | 7.40 (0.03) | ||||||||
| Mass | [M☉] | 0.36 (0.03) | 0.443 (0.01) | 0.37 (0.02) | 0.4 (0.01) | 0.207 (0.009) | ||||||||||
| log(Luminosity) | [L☉] | -0.11 (0.06) | ||||||||||||||
| Cooling age | [Gyr] | 0.0002 (0.0001) | 0.0141 | |||||||||||||
| 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] | 2.48 (0.04) | 2.50 (0.05) | 2.48 | 2.48 (0.04) | |||||||||||
| Distance | [pc] | 402.66 (6) | 400.43 (8) | 314.00 (22) | 402.66 | 402.66 (6) | ||||||||||
| Composition | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 5.566831561 (0.05) | 5.564068466 (0.1) | 5.567 (0.05) | 8.6 | |||||||||||
| Proper motion (declination) | [mas/yr] | -0.926030696 (0.05) | -0.677969591 (0.1) | -0.926 (0.05) | -5.2 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | WDMS | WDMS | yes | WDMS | WDMS | |||||||||||
| B magnitude | 15.65 | |||||||||||||||
| V magnitude | 16.24 | |||||||||||||||
| R magnitude | ||||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 15.75 (0.07) | |||||||||||||||
| H magnitude | 15.24 (0.1) | |||||||||||||||
| K magnitude | 15.11 (0.1) | |||||||||||||||
| u magnitude | 15.76 (0.004) | 15.83 | 15.76 (0.004) | 15.83 (0.02) | 15.83 | 15.81 (0.02) | ||||||||||
| g magnitude | 16.04 (0.003) | 16.03 | 16.03 (0.003) | 16.03 (0.02) | 16.04 | 16.03 (0.02) | ||||||||||
| r magnitude | 16.41 (0.004) | 16.42 | 16.41 (0.004) | 16.42 (0.01) | 16.42 | 16.41 (0.01) | ||||||||||
| i magnitude | 16.52 (0.004) | 16.54 | 16.51 (0.004) | 16.54 (0.02) | 16.54 | 16.53 (0.02) | ||||||||||
| z magnitude | 16.50 (0.008) | 16.52 | 16.50 (0.008) | 16.52 (0.02) | 16.53 | 16.50 (0.02) | ||||||||||
| G magnitude | 16.26 (0.007) | 16.28 | 16.26 | 16.26 (0.004) | ||||||||||||
| BP magnitude | 16.19 (0.007) | 16.13 | ||||||||||||||
| RP magnitude | 16.30 (0.02) | 16.28 | ||||||||||||||
| Pan g magnitude | 16.16 (0.01) | |||||||||||||||
| Pan r magnitude | 16.43 (0.01) | |||||||||||||||
| Pan i magnitude | 16.61 (0.01) | |||||||||||||||
| Pan z magnitude | 16.71 (0.01) | |||||||||||||||
| Pan y magnitude | 16.62 (0.01) | |||||||||||||||
| E(B-V) | 0.024 | |||||||||||||||
* 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.