All names: SDSS J130012.49+190857.4, WD 1257+194, Gaia EDR3 3941505918629413248, GALEX J130012.5+190857, SBC9 3370, WISEA J130012.45+190857.2, Gaia DR3 3941505918629413248, SDSS J130012.48+190857.3, 2MASS J13001250+1908571, TIC 149536476, Gaia DR2 3941505918629413248, WISE J130012.45+190857.2
| 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 00 12.44 (0.1) | 13 00 12.48 | 13 00 12.45 (0.1) | 13 00 12.49 | 13 00 12.51 (0.1) | 13 00 11.81 | 13 00 12.49 | |||
| Declination | 19 08 57.55 (0.09) | 19 08 57.38 | 19 08 57.54 (0.1) | 19 08 57.41 | 19 08 57.24 (0.09) | 19 08 51.00 | 19 08 57.41 | |||
| Spectral type | DA+M | DA+M4 | DA5.8+M4 | DA+M | ||||||
| Effective temperature | [K] | 8673.0 (121) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.81 (0.2) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 1.09 (0.1) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 3.97 (0.2) | 4.04 (0.2) | 3.97 (0.2) | ||||||
| Distance | [pc] | 252.00 (11) | 247.66 (11) | 124.00 (21) | 252.00 (11) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -56.24967767 (0.2) | -56.34824017 (0.3) | -56.25 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | 19.94214212 (0.2) | 19.9429676 (0.2) | 19.942 (0.2) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.53 (0.06) | |||||||||
| H magnitude | 15.06 (0.06) | |||||||||
| K magnitude | 14.72 (0.08) | |||||||||
| u magnitude | 19.92 (0.04) | 19.85 | 19.90 (0.04) | 19.90 | 19.85 (0.04) | |||||
| g magnitude | 19.18 (0.01) | 19.22 | 19.20 (0.01) | 19.20 | 19.22 (0.02) | |||||
| r magnitude | 18.70 (0.01) | 18.68 | 18.69 (0.009) | 18.69 | 18.68 (0.02) | |||||
| i magnitude | 17.66 (0.007) | 17.66 | 17.67 (0.007) | 17.67 | 17.66 (0.02) | |||||
| z magnitude | 16.90 (0.01) | 16.89 | 16.90 (0.009) | 16.90 | 16.89 (0.02) | |||||
| G magnitude | 18.18 (0.03) | 18.20 | 18.18 (0.003) | |||||||
| BP magnitude | 19.08 (0.03) | 19.12 | ||||||||
| RP magnitude | 17.17 (0.007) | 17.18 | ||||||||
| Pan g magnitude | 19.14 (0.009) | |||||||||
| Pan r magnitude | 18.66 (0.009) | |||||||||
| Pan i magnitude | 17.66 (0.007) | |||||||||
| Pan z magnitude | 17.04 (0.007) | |||||||||
| Pan y magnitude | 16.73 (0.007) | |||||||||
| E(B-V) | 0.024 | |||||||||
* 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.