All names: TIC 425093978, 2MASS J02380438-0005457, SDSS J023804.40-000545.7, Gaia DR3 2498742463062264192, SBC9 3356, WD 0235-003, Gaia DR2 2498742463062264192, SDSS J023804.40-000545.6, SDSS J023804.39-000545.7, SDSS J023804.39-000545.6, WIRED J023804.39-000545.7, Gaia EDR3 2498742463062264192, [SGR2010] J0238-0005
| 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 | 02 38 04.39 (0.2) | 02 38 04.40 | 02 38 04.39 (0.2) | 02 38 04.39 | 02 38 04.40 (0.2) | 02 38 04.39 | 02 38 04.61 | 02 38 04.40 | |||
| Declination | -00 05 45.71 (0.2) | -00 05 45.65 | -00 05 45.71 (0.1) | -00 05 45.71 | -00 05 45.71 (0.2) | -00 05 45.71 | -00 05 39.12 | -00 05 45.72 | |||
| Spectral type | DA+M | DA+M | DA+M | DA | DA+M | ||||||
| Effective temperature | [K] | 20566.0 (1537) | 6300.0 (1) | 6300.0 (2) | |||||||
| log(g) | [cgs] | 7.72 (0.3) | 8.18 (0.2) | 7.32 (2) | |||||||
| Mass | [M☉] | 0.48 (0.1) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.12 (0.2) | 4.02 (0.2) | 4.12 (0.2) | |||||||
| Distance | [pc] | 242.53 (11) | 248.95 (13) | 409.00 (24) | 242.53 (11) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -2.274322433 (0.2) | -2.152508917 (0.3) | -2.274 (0.2) | -4.2 | ||||||
| Proper motion (declination) | [mas/yr] | -0.190896815 (0.2) | -0.029612336 (0.3) | -0.191 (0.2) | -2.7 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.55 (0.008) | ||||||||||
| H magnitude | 15.05 (0.01) | ||||||||||
| K magnitude | 14.73 (0.01) | ||||||||||
| u magnitude | 19.92 (0.04) | 19.77 | 19.81 (0.04) | 19.77 (0.04) | 19.76 | 19.81 (0.04) | |||||
| g magnitude | 19.17 (0.01) | 19.21 | 19.17 (0.01) | 19.21 (0.03) | 19.20 | 19.23 (0.03) | |||||
| r magnitude | 18.62 (0.009) | 18.67 | 18.63 (0.009) | 18.67 (0.03) | 18.66 | 18.68 (0.02) | |||||
| i magnitude | 17.63 (0.007) | 17.70 | 17.69 (0.007) | 17.70 (0.03) | 17.69 | 17.70 (0.03) | |||||
| z magnitude | 16.93 (0.01) | 16.97 | 16.96 (0.01) | 16.97 (0.02) | 16.96 | 16.97 (0.02) | |||||
| G magnitude | 18.19 (0.08) | 18.21 | 18.19 (0.003) | ||||||||
| BP magnitude | 19.08 (0.08) | 19.03 | |||||||||
| RP magnitude | 17.21 (0.03) | 17.18 | |||||||||
| Pan g magnitude | 19.11 (0.01) | ||||||||||
| Pan r magnitude | 18.63 (0.006) | ||||||||||
| Pan i magnitude | 17.66 (0.005) | ||||||||||
| Pan z magnitude | 17.09 (0.005) | ||||||||||
| Pan y magnitude | 16.79 (0.008) | ||||||||||
| E(B-V) | 0.019 | ||||||||||
* 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.