All names: Gaia DR3 1255522363433681792, TIC 445843688, SDSS J142355.06+240924.3, WIRED J142355.06+240924.3, [HHD2009] SDSS J1423+2409, WD 1421+243, SDSS J142355.07+240924.4, SDSS J142355.07+240924.3, 2MASS J14235505+2409248, SDSS J142355.06+240924.4, Gaia EDR3 1255522363433681792, GALEX J142355.1+240924, Gaia DR2 1255522363433681792
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 23 55.05 (0.1) | 14 23 55.07 | 14 23 55.05 (0.2) | 14 23 55.06 | 14 23 55.05 | 14 23 55.07 (0.1) | 14 23 55.20 | 14 23 55.07 | |||||
| Declination | 24 09 24.42 (0.1) | 24 09 24.34 | 24 09 24.41 (0.2) | 24 09 24.30 | 24 09 24.42 | 24 09 24.29 (0.1) | 24 09 20.16 | 24 09 24.37 | |||||
| Spectral type | DA+M | DA+M | DA | DA+M | __1.5+M5 | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 31668.0 (196) | 32595.0 (318) | 19655.0 (685) | 32495.0 (230) | ||||||||
| log(g) | [cgs] | 7.29 (0.04) | 7.39 (0.08) | 6.74 (0.1) | 7.26 (0.05) | ||||||||
| Mass | [M☉] | 0.37 (0.01) | 0.41 (0.02) | 0.216 (0.02) | |||||||||
| log(Luminosity) | [L☉] | -0.32 (0.03) | |||||||||||
| Cooling age | [Gyr] | 0.0008 (0.0003) | |||||||||||
| 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] | 1.85 (0.2) | 1.19 (0.3) | 1.85 | 1.85 (0.2) | ||||||||
| Distance | [pc] | 539.44 (53) | 839.95 (177) | 11.00 (1) | 539.44 | 539.43 (53) | |||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -13.52390523 (0.2) | -13.75307889 (0.4) | -13.524 (0.2) | |||||||||
| Proper motion (declination) | [mas/yr] | 8.152191253 (0.2) | 9.227143287 (0.4) | 8.152 (0.2) | |||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.36 (0.1) | ||||||||||||
| H magnitude | 15.79 (0.2) | ||||||||||||
| K magnitude | 15.46 (0.05) | ||||||||||||
| u magnitude | 17.29 (0.01) | 17.34 | 17.29 (0.01) | 17.33 | 17.32 (0.02) | ||||||||
| g magnitude | 17.49 (0.005) | 17.51 | 17.49 (0.005) | 17.50 | 17.50 (0.02) | ||||||||
| r magnitude | 17.86 (0.006) | 17.89 | 17.86 (0.006) | 17.88 | 17.89 (0.02) | ||||||||
| i magnitude | 17.82 (0.007) | 17.84 | 17.82 (0.007) | 17.83 | 17.84 (0.02) | ||||||||
| z magnitude | 17.54 (0.02) | 17.57 | 17.54 (0.02) | 17.56 | 17.57 (0.02) | ||||||||
| G magnitude | 17.71 (0.01) | 17.69 | 17.71 | 17.71 (0.004) | |||||||||
| BP magnitude | 17.63 (0.01) | 17.60 | |||||||||||
| RP magnitude | 17.49 (0.01) | 17.48 | |||||||||||
| Pan g magnitude | 17.61 (0.008) | ||||||||||||
| Pan r magnitude | 17.95 (0.01) | ||||||||||||
| Pan i magnitude | 17.86 (0.006) | ||||||||||||
| Pan z magnitude | 17.73 (0.004) | ||||||||||||
| Pan y magnitude | 17.52 (0.02) | ||||||||||||
| E(B-V) | 0.021 | ||||||||||||
* 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.