All names: SDSS J003904.35-004206.9, WD 0036-009, TIC 212981359, Gaia DR3 2542877581356039296, Gaia EDR3 2542877581356039296, SDSS J003904.35-004206.8, Gaia DR2 2542877581356039296, 2MASS J00390434-0042068, [SGR2010] J0039-0042, GALEX J003904.3-004205
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 39 04.37 (0.2) | 00 39 04.36 | 00 39 04.37 (0.2) | 00 39 04.35 (0.2) | 00 39 03.60 | |||
| Declination | -00 42 06.93 (0.1) | -00 42 06.84 | -00 42 06.93 (0.2) | -00 42 06.83 (0.1) | -00 42 01.44 | |||
| Spectral type | D+M1 | WD M | ||||||
| Effective temperature | [K] | |||||||
| log(g) | [cgs] | |||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 2.18 (0.2) | 2.14 (0.3) | 2.18 (0.2) | ||||
| Distance | [pc] | 459.75 (44) | 467.52 (56) | 459.75 (44) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 13.45303754 (0.3) | 10.79995534 (0.6) | 13.453 (0.3) | ||||
| Proper motion (declination) | [mas/yr] | -6.357562323 (0.2) | -8.468897403 (0.3) | -6.358 (0.2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 15.97 (0.06) | |||||||
| H magnitude | 15.31 (0.01) | |||||||
| K magnitude | 15.08 (0.01) | |||||||
| u magnitude | 20.49 (0.05) | 20.45 (0.08) | 20.47 | |||||
| g magnitude | 19.54 (0.01) | 19.66 (0.02) | 19.55 | |||||
| r magnitude | 18.44 (0.009) | 18.44 (0.01) | 18.43 | |||||
| i magnitude | 17.63 (0.007) | 17.65 (0.01) | 17.65 | |||||
| z magnitude | 17.17 (0.01) | 17.16 (0.02) | 17.15 | |||||
| G magnitude | 18.32 (0.02) | 18.30 | 18.32 (0.003) | |||||
| BP magnitude | 19.12 (0.02) | 19.11 | ||||||
| RP magnitude | 17.23 (0.008) | 17.22 | ||||||
| Pan g magnitude | 19.40 (0.01) | |||||||
| Pan r magnitude | 18.45 (0.006) | |||||||
| Pan i magnitude | 17.63 (0.005) | |||||||
| Pan z magnitude | 17.24 (0.007) | |||||||
| Pan y magnitude | 17.06 (0.01) | |||||||
| E(B-V) | 0.026 | |||||||
* 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.