All names: Gaia DR2 455517329408362752, 2MASS J02211151+5333307, Gaia EDR3 455517329408362752, WDJ022111.49+533330.39, Gaia DR3 455517329408362752, CCDM J02212+5334B, G 173-52B, J0221+5333, TIC 301092267, WDS J02213+5334B, UCAC4 718-020910, ** LDS 5377B
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Tremblay et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 21 10.99 (0.04) | 02 21 11.01 (0.1) | 02 21 11.01 | 02 21 10.99 | 02 21 11.49 (0.04) | 02 21 11.01 | ||||||
| Declination | 53 33 29.66 (0.06) | 53 33 29.68 (0.1) | 53 33 29.68 | 53 33 29.66 | 53 33 30.39 (0.06) | 53 33 29.68 | ||||||
| Spectral type | DC | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 6709.0 (69) | 6364.0 (46) | 6633.7 (49) | 6630.0 (50) | 6253.0 (46) | ||||||
| log(g) | [cgs] | 8.15 (0.03) | 7.96 (0.02) | 8.15 (0.03) | 8.15 (0.03) | 8.01 (0.01) | ||||||
| Mass | [M☉] | 0.669 (0.02) | 0.548 (0.01) | 0.577 (0.01) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.9600 | ||||||||||
| log(H/He) | -3.2 | |||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(N/He) | ||||||||||||
| log(O/He) | ||||||||||||
| log(Na/He) | ||||||||||||
| log(Mg/He) | ||||||||||||
| log(Al/He) | ||||||||||||
| log(Si/He) | ||||||||||||
| log(P/He) | ||||||||||||
| log(S/He) | ||||||||||||
| log(Cl/He) | ||||||||||||
| log(Sc/He) | ||||||||||||
| log(Ti/He) | ||||||||||||
| log(V/He) | ||||||||||||
| log(Cr/He) | ||||||||||||
| log(Mn/He) | ||||||||||||
| log(Fe/He) | ||||||||||||
| log(Co/He) | ||||||||||||
| log(Ni/He) | ||||||||||||
| log(Cu/He) | ||||||||||||
| log(Zn/He) | ||||||||||||
| log(Ga/He) | ||||||||||||
| log(Ge/He) | ||||||||||||
| log(Sr/He) | ||||||||||||
| Parallax | [mas] | 34.43 (0.07) | 34.43 (0.07) | 34.43 (0.07) | 34.70 (0.1) | 34.70 (0.1) | 34.43 | 34.43 (0.07) | 34.70 (0.1) | |||
| Distance | [pc] | 29.05 (0.06) | 29.04 (0.06) | 29.04 (0.06) | 28.82 (0.1) | 28.82 (0.1) | 29.05 | 29.05 (0.06) | 28.82 (0.1) | |||
| Composition | He | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -275.4710314 (0.06) | -275.6453737 (0.2) | -275.471 (0.06) | -275.6453737 | |||||||
| Proper motion (declination) | [mas/yr] | -45.61339017 (0.09) | -45.65674324 (0.3) | -45.613 (0.09) | -45.65674324 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | 16.20 (0.1) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.02 (0.1) | 15.02 (0.1) | ||||||||||
| H magnitude | 14.98 (0.3) | 14.98 (0.3) | ||||||||||
| K magnitude | 15.06 (0.2) | 15.06 (0.2) | ||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 16.16 (0.006) | 16.17 | 16.17 | 16.16 | 16.16 (0.003) | 16.17 | ||||||
| BP magnitude | 16.35 (0.006) | 16.36 | 16.36 | |||||||||
| RP magnitude | 15.80 (0.003) | 15.79 | 15.79 | |||||||||
| Pan g magnitude | 16.35 (0.004) | 16.35 (0.004) | ||||||||||
| Pan r magnitude | 16.15 (0.004) | 16.15 (0.004) | ||||||||||
| Pan i magnitude | 16.12 (0.006) | 16.12 (0.006) | ||||||||||
| Pan z magnitude | 16.12 (0.04) | 16.12 (0.04) | ||||||||||
| Pan y magnitude | 15.90 (0.006) | 15.90 (0.006) | ||||||||||
| E(B-V) | 0.001 | |||||||||||
* 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.