All names: SDSS J225117.28+310939.8, WIRED J225117.28+310939.8, Gaia EDR3 1889577772480852480, 2MASS J22511728+3109398, Gaia DR3 1889577772480852480, TIC 188872731, Gaia DR2 1889577772480338688, SDSS J225117.29+310939.9
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 51 17.27 (0.2) | 22 51 17.29 | 22 51 17.27 (0.2) | 22 51 17.28 (0.2) | 22 51 17.29 | ||||
| Declination | 31 09 40.03 (0.2) | 31 09 39.85 | 31 09 40.02 (0.2) | 31 09 39.91 (0.2) | 31 09 39.88 | ||||
| Spectral type | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 41031.0 (620) | 6300.0 (2) | ||||||
| log(g) | [cgs] | 7.89 (0.07) | 7.82 (0.04) | ||||||
| Mass | [M☉] | 0.62 (0.03) | |||||||
| log(Luminosity) | [L☉] | -0.26 (0.05) | |||||||
| Cooling age | [Gyr] | 0.0035 (0.0002) | |||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(C/H) | |||||||||
| log(N/H) | |||||||||
| log(O/H) | |||||||||
| log(Na/H) | |||||||||
| log(Mg/H) | |||||||||
| log(Al/H) | |||||||||
| log(Si/H) | |||||||||
| log(P/H) | |||||||||
| log(S/H) | |||||||||
| log(Sc/H) | |||||||||
| log(Ti/H) | |||||||||
| log(Cr/H) | |||||||||
| log(Mn/H) | |||||||||
| log(Fe/H) | |||||||||
| log(Ni/H) | |||||||||
| Parallax | [mas] | 5.05 (0.3) | 4.63 (0.3) | 5.05 (0.3) | |||||
| Distance | [pc] | 198.01 (11) | 216.16 (14) | 198.01 (11) | |||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -9.842263402 (0.2) | -3.435561316 (0.5) | -9.842 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | 7.508190735 (0.3) | 10.61958426 (0.4) | 7.508 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 13.19 (0.02) | ||||||||
| H magnitude | 12.61 (0.02) | ||||||||
| K magnitude | 12.39 (0.03) | ||||||||
| u magnitude | 15.76 (0.005) | 15.75 (0.02) | 15.75 (0.02) | ||||||
| g magnitude | 15.81 (0.004) | 15.90 (0.01) | 15.90 (0.01) | ||||||
| r magnitude | 15.41 (0.004) | 15.49 (0.007) | 15.49 (0.01) | ||||||
| i magnitude | 14.82 (0.004) | 14.84 (0.01) | 14.84 (0.01) | ||||||
| z magnitude | 14.44 (0.005) | 14.44 (0.01) | 14.44 (0.02) | ||||||
| G magnitude | 15.53 (0.01) | 15.45 | 15.53 (0.008) | ||||||
| BP magnitude | 15.63 (0.01) | 15.62 | |||||||
| RP magnitude | 14.44 (0.001) | 14.46 | |||||||
| Pan g magnitude | 15.88 (0.007) | ||||||||
| Pan r magnitude | 15.50 (0.004) | ||||||||
| Pan i magnitude | 14.87 (0.004) | ||||||||
| Pan z magnitude | 14.55 (0.007) | ||||||||
| Pan y magnitude | 14.37 (0.005) | ||||||||
| E(B-V) | 0.032 | ||||||||
* 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.