All names: SDSS J134208.94+044852.7, WD 1339+050, WIRED J134208.94+044852.7, TIC 376919641, Gaia DR3 3714154470515963520, [SGR2010] J1342+0448, SDSS J134208.95+044852.7, [HHD2009] SDSS J1342+0448, Gaia EDR3 3714154470515963520, Gaia DR2 3714154470515963520, 2MASS J13420894+0448526
| 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 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 42 08.94 (0.09) | 13 42 08.95 | 13 42 08.94 (0.1) | 13 42 08.94 | 13 42 08.95 (0.09) | 13 42 08.95 | 13 42 08.30 | 13 42 08.95 | |||||
| Declination | 04 48 52.89 (0.08) | 04 48 52.73 | 04 48 52.88 (0.1) | 04 48 52.70 | 04 48 52.69 (0.08) | 04 48 52.74 | 04 48 47.16 | 04 48 52.71 | |||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA dM | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 14065.0 (473) | 12660.0 (420) | 8939.0 (52) | 8736.0 (64) | ||||||||
| log(g) | [cgs] | 7.53 (0.1) | 8.15 (0.08) | 7.19 (0.1) | 6.85 (0.1) | ||||||||
| Mass | [M☉] | 0.38 (0.04) | 0.7 (0.05) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.4365 | |||||||||||
| 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] | 4.18 (0.1) | 4.24 (0.1) | 4.18 (0.1) | |||||||||
| Distance | [pc] | 239.26 (6) | 235.61 (8) | 363.00 (21) | 239.26 (6) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -12.75200827 (0.1) | -13.13225999 (0.3) | -12.752 (0.1) | -9.9 | ||||||||
| Proper motion (declination) | [mas/yr] | 12.7765723 (0.1) | 13.15252101 (0.2) | 12.777 (0.1) | 16.6 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.88 (0.08) | ||||||||||||
| H magnitude | 15.25 (0.09) | ||||||||||||
| K magnitude | 14.72 (0.1) | ||||||||||||
| u magnitude | 18.75 (0.02) | 18.77 | 18.76 (0.02) | 18.77 (0.03) | 18.77 | 18.77 (0.03) | |||||||
| g magnitude | 18.23 (0.006) | 18.24 | 18.23 (0.007) | 18.24 (0.01) | 18.24 | 18.24 (0.01) | |||||||
| r magnitude | 18.17 (0.007) | 18.18 | 18.16 (0.008) | 18.18 (0.01) | 18.18 | 18.17 (0.01) | |||||||
| i magnitude | 17.58 (0.007) | 17.59 | 17.58 (0.007) | 17.59 (0.01) | 17.59 | 17.58 (0.01) | |||||||
| z magnitude | 17.01 (0.01) | 17.03 | 17.03 (0.01) | 17.03 (0.02) | 17.03 | 17.01 (0.02) | |||||||
| G magnitude | 17.85 (0.01) | 17.86 | 17.85 (0.003) | ||||||||||
| BP magnitude | 18.27 (0.01) | 18.25 | |||||||||||
| RP magnitude | 17.15 (0.006) | 17.15 | |||||||||||
| Pan g magnitude | 18.22 (0.005) | ||||||||||||
| Pan r magnitude | 18.16 (0.004) | ||||||||||||
| Pan i magnitude | 17.60 (0.004) | ||||||||||||
| Pan z magnitude | 17.14 (0.003) | ||||||||||||
| Pan y magnitude | 16.90 (0.005) | ||||||||||||
| E(B-V) | 0.027 | ||||||||||||
* 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.