All names: SDSS J100741.08+404125.8, WD 1004+409, Gaia DR2 803778734032333568, Gaia EDR3 803778738331343872, 2MASS J10074110+4041260, Gaia DR3 803778738331343872, SDSS J100741.09+404125.9, GALEX J100741.0+404126, TIC 39125690
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 07 41.07 (0.2) | 10 07 41.09 | 10 07 41.07 (0.2) | 10 07 41.08 | 10 07 41.10 (0.2) | 10 07 41.09 | 10 07 41.23 | 10 07 41.09 | |||
| Declination | 40 41 25.30 (0.2) | 40 41 25.86 | 40 41 25.32 (0.3) | 40 41 25.80 | 40 41 25.85 (0.2) | 40 41 25.86 | 40 41 18.96 | 40 41 25.86 | |||
| Spectral type | DA+M | DA+dM | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 17505.0 (478) | 6300.0 (3) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 7.70 (0.1) | 5.00 (0.006) | 5.00 (0.006) | |||||||
| Mass | [M☉] | 0.46 (0.05) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.41 (0.3) | 4.00 (0.4) | 2.41 (0.3) | |||||||
| Distance | [pc] | 414.68 (46) | 250.21 (25) | 187.00 (45) | 414.68 (46) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -25.34522903 (0.2) | -23.32932383 (0.5) | -25.345 (0.2) | -18.5 | ||||||
| Proper motion (declination) | [mas/yr] | -34.31186889 (0.2) | -34.58384081 (0.5) | -34.312 (0.2) | -36.4 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 14.91 (0.04) | ||||||||||
| H magnitude | 14.37 (0.04) | ||||||||||
| K magnitude | 14.13 (0.07) | ||||||||||
| u magnitude | 18.71 (0.02) | 18.73 | 18.72 (0.02) | 18.73 (0.02) | 18.73 | 18.72 (0.02) | |||||
| g magnitude | 18.12 (0.006) | 18.20 | 18.12 (0.006) | 18.20 (0.03) | 18.20 | 18.18 (0.03) | |||||
| r magnitude | 17.61 (0.006) | 17.69 | 17.61 (0.006) | 17.69 (0.02) | 17.69 | 17.68 (0.02) | |||||
| i magnitude | 16.70 (0.005) | 16.74 | 16.70 (0.005) | 16.74 (0.01) | 16.74 | 16.73 (0.02) | |||||
| z magnitude | 16.13 (0.007) | 16.17 | 16.13 (0.007) | 16.17 (0.02) | 16.17 | 16.15 (0.02) | |||||
| G magnitude | 17.53 (0.01) | 17.44 | 17.53 (0.004) | ||||||||
| BP magnitude | 18.03 (0.01) | 18.04 | |||||||||
| RP magnitude | 16.28 (0.003) | 16.30 | |||||||||
| Pan g magnitude | 18.10 (0.003) | ||||||||||
| Pan r magnitude | 17.64 (0.005) | ||||||||||
| Pan i magnitude | 16.74 (0.004) | ||||||||||
| Pan z magnitude | 16.25 (0.003) | ||||||||||
| Pan y magnitude | 16.02 (0.007) | ||||||||||
| E(B-V) | 0.018 | ||||||||||
* 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.