All names: PG 1336+124, NLTT 34784, 1SWASP J133913.55+120831.0, PM2000 1062955, WDS J13392+1209B, WD 1336+123, WDJ133913.54+120831.23, LP 498-26, Gaia DR2 3738752645868410752, Gaia EDR3 3738752645868410752, LAMOST J133913.61+120829.9, ** LDS 4391B, LSPM J1339+1208, Gaia DR3 3738752645868410752, UCAC2 36125319, 2MASS J13391351+1208314, WD1336+123, TIC 171731624, GALEX J133913.5+120829, USNO-B1.0 1021-00260259
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD HE | Gaia DR2 | Stilism | Bergeron et al. 2011 | Voss et al. 2007 | Koester et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 39 13.67 (0.03) | 13 39 13.66 (0.05) | 13 39 13.60 | 13 39 13.67 | 13 39 13.54 (0.03) | 13 39 13.66 | 13 39 12.74 | ||||||
| Declination | 12 08 29.10 (0.02) | 12 08 29.16 (0.04) | 12 08 30.00 | 12 08 29.10 | 12 08 31.23 (0.02) | 12 08 29.16 | 12 08 35.88 | ||||||
| Spectral type | DB | DB | DB | DB | DB3+ | DB | |||||||
| Effective temperature | [K] | 14920.0 | 15950.0 (407) | 16779.0 | 16869.0 (70) | 15688.0 (141) | |||||||
| log(g) | [cgs] | 7.91 | 8.01 (0.09) | 8.00 | 8.26 (0.03) | 7.99 (0.01) | |||||||
| Mass | [M☉] | 0.539 | 0.6 (0.05) | 0.584 (0.009) | |||||||||
| log(Luminosity) | [L☉] | -2.03 | |||||||||||
| Cooling age | [Gyr] | 0.1749 | 0.1778 | ||||||||||
| log(H/He) | <-6.29 (2) | ||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| log(N/He) | |||||||||||||
| log(O/He) | |||||||||||||
| log(Na/He) | |||||||||||||
| log(Mg/He) | |||||||||||||
| log(Al/He) | |||||||||||||
| log(Si/He) | |||||||||||||
| log(P/He) | |||||||||||||
| log(S/He) | |||||||||||||
| log(Cl/He) | |||||||||||||
| log(Sc/He) | |||||||||||||
| log(Ti/He) | |||||||||||||
| log(V/He) | |||||||||||||
| log(Cr/He) | |||||||||||||
| log(Mn/He) | |||||||||||||
| log(Fe/He) | |||||||||||||
| log(Co/He) | |||||||||||||
| log(Ni/He) | |||||||||||||
| log(Cu/He) | |||||||||||||
| log(Zn/He) | |||||||||||||
| log(Ga/He) | |||||||||||||
| log(Ge/He) | |||||||||||||
| log(Sr/He) | |||||||||||||
| Parallax | [mas] | 19.39 (0.04) | 19.33 (0.06) | 19.39 | 19.39 (0.04) | 19.33 (0.06) | |||||||
| Distance | [pc] | 51.57 (0.1) | 51.73 (0.2) | 51.00 | 51.57 | 51.57 (0.1) | 51.73 (0.2) | ||||||
| Composition | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 122.0410821 (0.04) | 121.8946505 (0.1) | 122.041 (0.04) | 121.8946505 | ||||||||
| Proper motion (declination) | [mas/yr] | -133.0633736 (0.03) | -132.9486809 (0.09) | -133.063 (0.03) | -132.9486809 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 13.90 | 13.90 | 14.41 | ||||||||||
| V magnitude | 14.72 | ||||||||||||
| R magnitude | 14.60 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.00 (0.04) | ||||||||||||
| H magnitude | 15.02 (0.08) | ||||||||||||
| K magnitude | 15.11 (0.1) | ||||||||||||
| u magnitude | 14.48 (0.004) | ||||||||||||
| g magnitude | 14.54 (0.003) | ||||||||||||
| r magnitude | 14.87 (0.004) | ||||||||||||
| i magnitude | 15.12 (0.004) | ||||||||||||
| z magnitude | 15.39 (0.006) | ||||||||||||
| G magnitude | 14.70 (0.001) | 14.72 | 14.70 | 14.70 (0.003) | 14.72 | ||||||||
| BP magnitude | 14.63 (0.001) | 14.60 | 14.60 | ||||||||||
| RP magnitude | 14.81 (0.001) | 14.81 | 14.81 | ||||||||||
| Pan g magnitude | 14.62 (0.003) | ||||||||||||
| Pan r magnitude | 14.87 (0.005) | ||||||||||||
| Pan i magnitude | 15.14 (0.003) | ||||||||||||
| Pan z magnitude | 15.36 (0.003) | ||||||||||||
| Pan y magnitude | 15.51 (0.004) | ||||||||||||
| E(B-V) | 0.002 | ||||||||||||
* 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.