All names: SDSS J133928.49+224844.8, Gaia EDR3 1443505320975402752, WD 1337+230, Gaia DR3 1443505320975402752, GALEX J133928.5+224845, Gaia DR2 1443505316679108864, 2MASS J13392849+2248447, SDSS J133928.50+224844.8, TIC 207394487, WIRED J133928.49+224844.8, LAMOST J133928.49+224844.8, LAMOST J133928.50+224844.8, [SGR2010] J1339+2248
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 39 28.49 (0.4) | 13 39 28.49 | 13 39 28.49 (0.4) | 13 39 28.50 | 13 39 28.50 (0.4) | 13 39 28.01 | 13 39 28.50 | |||
| Declination | 22 48 44.86 (0.3) | 22 48 44.81 | 22 48 44.85 (0.4) | 22 48 44.82 | 22 48 44.64 (0.3) | 22 48 36.72 | 22 48 44.82 | |||
| Spectral type | DB+M | DB+M3 | DB3.1+M3 | DB+M | ||||||
| Effective temperature | [K] | 16481.0 (32) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.36 (0.02) | 10.00 (0.003) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 4.37 (0.5) | 4.84 (0.7) | 4.37 (0.5) | ||||||
| Distance | [pc] | 228.82 (26) | 206.70 (28) | 228.82 (26) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -9.421734374 (0.6) | -13.05387228 (1) | -9.422 (0.6) | ||||||
| Proper motion (declination) | [mas/yr] | 13.84935639 (0.3) | 12.70779364 (0.6) | 13.849 (0.3) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 14.83 (0.03) | |||||||||
| H magnitude | 14.35 (0.04) | |||||||||
| K magnitude | 14.12 (0.05) | |||||||||
| u magnitude | 18.21 (0.01) | 18.26 | 18.21 (0.01) | 18.24 | 18.26 (0.02) | |||||
| g magnitude | 18.15 (0.006) | 18.18 | 18.15 (0.006) | 18.14 | 18.18 (0.01) | |||||
| r magnitude | 17.73 (0.006) | 17.75 | 17.73 (0.006) | 17.73 | 17.75 (0.02) | |||||
| i magnitude | 16.84 (0.005) | 16.86 | 16.84 (0.005) | 16.84 | 16.86 (0.02) | |||||
| z magnitude | 16.27 (0.008) | 16.28 | 16.26 (0.008) | 16.26 | 16.28 (0.02) | |||||
| G magnitude | 17.73 (0.01) | 17.61 | 17.73 (0.003) | |||||||
| BP magnitude | 18.04 (0.01) | 18.04 | ||||||||
| RP magnitude | 16.42 (0.004) | 16.43 | ||||||||
| Pan g magnitude | 18.12 (0.006) | |||||||||
| Pan r magnitude | 17.73 (0.006) | |||||||||
| Pan i magnitude | 16.86 (0.003) | |||||||||
| Pan z magnitude | 16.37 (0.003) | |||||||||
| Pan y magnitude | 16.13 (0.004) | |||||||||
| E(B-V) | 0.019 | |||||||||
* 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.