All names: 2MASS J07505185+0850201, [SGR2010] J0750+0850, Gaia DR2 3145699228014327808, WD 0748+089, GALEX J075051.8+085020, Gaia EDR3 3145699228014327808, SDSS J075051.85+085020.1, Gaia DR3 3145699228014327808, TIC 299648441
| 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 | 07 50 51.85 (0.2) | 07 50 51.85 | 07 50 51.85 (0.2) | 07 50 51.85 | 07 50 51.85 (0.2) | 07 50 52.03 | 07 50 51.85 | |||
| Declination | 08 50 19.91 (0.1) | 08 50 20.11 | 08 50 19.92 (0.1) | 08 50 20.11 | 08 50 20.11 (0.1) | 08 50 19.32 | 08 50 20.13 | |||
| Spectral type | DA+M | DA+M3 | DA4.9+M3 | DA+M | ||||||
| Effective temperature | [K] | 10307.0 (57) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.32 (0.07) | 5.00 (0.003) | |||||||
| Mass | [M☉] | 0.81 (0.05) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 4.68 (0.2) | 4.48 (0.3) | 4.68 (0.2) | ||||||
| Distance | [pc] | 213.46 (9) | 223.32 (13) | 158.00 (9) | 213.46 (9) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 3.931786757 (0.2) | 4.405696041 (0.5) | 3.932 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | -12.26431458 (0.1) | -11.31724599 (0.3) | -12.264 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 14.33 (0.03) | |||||||||
| H magnitude | 13.68 (0.04) | |||||||||
| K magnitude | 13.42 (0.06) | |||||||||
| u magnitude | 19.08 (0.02) | 19.10 | 19.08 (0.02) | 19.08 | 19.10 (0.03) | |||||
| g magnitude | 18.09 (0.006) | 18.09 | 18.08 (0.006) | 18.08 | 18.09 (0.01) | |||||
| r magnitude | 17.21 (0.005) | 17.22 | 17.21 (0.005) | 17.21 | 17.22 (0.01) | |||||
| i magnitude | 16.18 (0.005) | 16.18 | 16.18 (0.005) | 16.18 | 16.18 (0.01) | |||||
| z magnitude | 15.59 (0.006) | 15.60 | 15.59 (0.006) | 15.59 | 15.60 (0.01) | |||||
| G magnitude | 16.88 (0.01) | 16.84 | 16.88 (0.004) | |||||||
| BP magnitude | 17.81 (0.01) | 17.82 | ||||||||
| RP magnitude | 15.75 (0.002) | 15.77 | ||||||||
| Pan g magnitude | 17.99 (0.005) | |||||||||
| Pan r magnitude | 17.21 (0.003) | |||||||||
| Pan i magnitude | 16.19 (0.002) | |||||||||
| Pan z magnitude | 15.70 (0.002) | |||||||||
| Pan y magnitude | 15.45 (0.005) | |||||||||
| E(B-V) | 0.013 | |||||||||
* 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.