All names: [HHD2009] SDSS J2139+1029, [SGR2010] J2139+1029, SDSS J213945.21+102904.7, WD 2137+102, Gaia DR2 1741745616625699328, SDSS J213945.20+102904.7, Gaia DR3 1741745616625699328, Gaia EDR3 1741745616625699328, 2MASS J21394520+1029049, TIC 305440004, SDSS J213945.20+102904.6
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 39 45.18 (0.7) | 21 39 45.20 | 21 39 45.18 (0.5) | 21 39 45.20 | 21 39 45.21 (0.5) | 21 39 45.20 | 21 39 44.69 | 21 39 45.21 | ||||
| Declination | 10 29 04.49 (0.7) | 10 29 04.63 | 10 29 04.49 (0.5) | 10 29 04.60 | 10 29 04.72 (0.5) | 10 29 04.65 | 10 29 01.32 | 10 29 04.70 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 10189.0 (59) | 10190.0 (100) | 8612.0 (35) | 7466.0 (35) | |||||||
| log(g) | [cgs] | 8.42 (0.09) | 8.12 (0.07) | 6.64 (0.1) | 5.43 (0.1) | |||||||
| Mass | [M☉] | 0.87 (0.05) | 0.67 (0.05) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.6918 | ||||||||||
| 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] | 5.88 (0.6) | 5.88 (0.6) | |||||||||
| Distance | [pc] | 170.04 (17) | 170.04 (17) | |||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -26.98549621 (0.9) | -26.985 (0.9) | -24.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -15.14452572 (0.9) | -15.145 (0.9) | -17.6 | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 14.85 (0.05) | |||||||||||
| H magnitude | 14.30 (0.06) | |||||||||||
| K magnitude | 14.07 (0.06) | |||||||||||
| u magnitude | 17.46 (0.009) | 17.49 | 17.46 (0.01) | 17.49 (0.02) | 17.49 | 17.47 (0.02) | ||||||
| g magnitude | 16.97 (0.005) | 16.98 | 16.95 (0.004) | 16.98 (0.02) | 16.98 | 16.97 (0.02) | ||||||
| r magnitude | 16.88 (0.005) | 16.90 | 16.89 (0.005) | 16.90 (0.01) | 16.90 | 16.89 (0.01) | ||||||
| i magnitude | 16.45 (0.005) | 16.50 | 16.46 (0.005) | 16.50 (0.01) | 16.50 | 16.47 (0.02) | ||||||
| z magnitude | 16.03 (0.007) | 16.06 | 16.04 (0.007) | 16.05 (0.02) | 16.06 | 16.03 (0.02) | ||||||
| G magnitude | 16.82 (0.009) | 16.72 | 16.82 (0.008) | |||||||||
| BP magnitude | 16.97 (0.009) | 16.97 | ||||||||||
| RP magnitude | 16.05 (0.004) | 16.06 | ||||||||||
| Pan g magnitude | 16.96 (0.002) | |||||||||||
| Pan r magnitude | 16.88 (0.002) | |||||||||||
| Pan i magnitude | 16.48 (0.003) | |||||||||||
| Pan z magnitude | 16.12 (0.003) | |||||||||||
| Pan y magnitude | 15.92 (0.006) | |||||||||||
| E(B-V) | 0.017 | |||||||||||
* 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.