All names: LAMOST J022503.02+005456.2, WIRED J022503.02+005456.2, Gaia DR2 2501315732588500224, SDSS J022503.03+005456.0, SBC9 3355, [HHD2009] SDSS J0225+0054, Gaia DR3 2501315732588500224, TIC 420049801, 2MASS J02250304+0054561, WD 0222+006, Gaia EDR3 2501315732588500224, SDSS J022503.03+005456.3, [SGR2010] J0225+0054, SDSS J022503.02+005456.2
| 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 25 03.03 (0.3) | 02 25 03.03 | 02 25 03.03 (0.3) | 02 25 03.03 | 02 25 03.04 (0.3) | 02 25 03.03 | 02 25 02.30 | 02 25 03.03 | |||
| Declination | 00 54 55.30 (0.2) | 00 54 55.62 | 00 54 55.33 (0.3) | 00 54 56.30 | 00 54 56.19 (0.2) | 00 54 56.04 | 00 54 55.44 | 00 54 56.28 | |||
| Spectral type | WD+M | DC+dM | DC+M | DC+M | DCM | ||||||
| Effective temperature | [K] | 6300.0 (1) | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 8.73 (0.2) | 10.00 (0.003) | ||||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.49 (0.3) | 4.31 (0.3) | 4.49 (0.3) | |||||||
| Distance | [pc] | 222.75 (13) | 231.81 (16) | 2393.00 (909) | 222.75 (13) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.002041205 (0.4) | -6.108882813 (0.6) | -7.002 (0.4) | -7.4 | ||||||
| Proper motion (declination) | [mas/yr] | -55.4047364 (0.3) | -55.58715142 (0.5) | -55.405 (0.3) | -59.3 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | yes | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.89 (0.008) | ||||||||||
| H magnitude | 15.37 (0.01) | ||||||||||
| K magnitude | 15.07 (0.01) | ||||||||||
| u magnitude | 21.63 (0.1) | 21.35 | 21.40 (0.1) | 21.35 (0.1) | 21.34 | 21.37 (0.1) | |||||
| g magnitude | 20.55 (0.02) | 20.53 | 20.58 (0.03) | 20.53 (0.06) | 20.50 | 20.55 (0.06) | |||||
| r magnitude | 19.68 (0.02) | 19.65 | 19.66 (0.02) | 19.65 (0.02) | 19.65 | 19.65 (0.02) | |||||
| i magnitude | 18.36 (0.01) | 18.35 | 18.35 (0.01) | 18.35 (0.01) | 18.35 | 18.35 (0.01) | |||||
| z magnitude | 17.48 (0.01) | 17.47 | 17.48 (0.02) | 17.47 (0.02) | 17.47 | 17.47 (0.02) | |||||
| G magnitude | 18.99 (0.1) | 19.01 | 18.99 (0.005) | ||||||||
| BP magnitude | 20.44 (0.1) | 20.54 | |||||||||
| RP magnitude | 17.78 (0.02) | 17.81 | |||||||||
| Pan g magnitude | 20.38 (0.03) | ||||||||||
| Pan r magnitude | 19.69 (0.009) | ||||||||||
| Pan i magnitude | 18.35 (0.006) | ||||||||||
| Pan z magnitude | 17.59 (0.004) | ||||||||||
| Pan y magnitude | 17.21 (0.007) | ||||||||||
| E(B-V) | 0.021 | ||||||||||
* 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.