All names: Gaia DR2 1163928032613656448, TIC 366548922, Gaia DR3 1163928032613890048, SDSS J152002.84+081231.0, SDSS J152002.85+081231.0, WIRED J152002.84+081231.0, Gaia EDR3 1163928032613890048, 2MASS J15200286+0812306, WD 1517+083, [SGR2010] J1520+0812, GALEX J152002.8+081231
| 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 | 15 20 02.83 (0.3) | 15 20 02.85 | 15 20 02.83 (0.4) | 15 20 02.85 | 15 20 02.85 (0.3) | 15 20 02.35 | 15 20 02.85 | |||
| Declination | 08 12 30.75 (0.3) | 08 12 31.01 | 08 12 30.76 (0.5) | 08 12 31.03 | 08 12 30.80 (0.3) | 08 12 29.88 | 08 12 31.04 | |||
| Spectral type | DA+M | DA+M4 | DA2.9+M4 | DA+M | ||||||
| Effective temperature | [K] | 17606.0 (416) | 6301.0 (6) | |||||||
| log(g) | [cgs] | 8.13 (0.09) | 5.01 (0.01) | |||||||
| Mass | [M☉] | 0.7 (0.06) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 2.01 (0.4) | 2.50 (0.6) | 2.01 (0.4) | ||||||
| Distance | [pc] | 497.13 (90) | 399.38 (88) | 456.00 (28) | 497.14 (90) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -21.30675954 (0.4) | -19.88930521 (0.8) | -21.307 (0.4) | ||||||
| Proper motion (declination) | [mas/yr] | -3.177004239 (0.3) | -2.193087566 (0.8) | -3.177 (0.3) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.83 (0.006) | |||||||||
| H magnitude | 15.30 (0.008) | |||||||||
| K magnitude | 15.02 (0.01) | |||||||||
| u magnitude | 19.50 (0.03) | 19.56 | 19.52 (0.04) | 19.52 | 19.56 (0.04) | |||||
| g magnitude | 19.10 (0.01) | 19.16 | 19.11 (0.01) | 19.11 | 19.16 (0.02) | |||||
| r magnitude | 18.91 (0.01) | 18.95 | 18.90 (0.01) | 18.90 | 18.95 (0.02) | |||||
| i magnitude | 17.97 (0.008) | 18.00 | 17.96 (0.008) | 17.96 | 18.00 (0.02) | |||||
| z magnitude | 17.23 (0.01) | 17.25 | 17.24 (0.01) | 17.24 | 17.25 (0.02) | |||||
| G magnitude | 18.96 (0.04) | 18.83 | 18.96 (0.007) | |||||||
| BP magnitude | 19.10 (0.04) | 19.13 | ||||||||
| RP magnitude | 17.53 (0.01) | 17.50 | ||||||||
| Pan g magnitude | 19.11 (0.007) | |||||||||
| Pan r magnitude | 18.93 (0.009) | |||||||||
| Pan i magnitude | 18.01 (0.003) | |||||||||
| Pan z magnitude | 17.42 (0.004) | |||||||||
| Pan y magnitude | 17.09 (0.008) | |||||||||
| E(B-V) | 0.029 | |||||||||
* 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.