All names: IDS 04181+3344 A, Gaia EDR3 172817599818083712, BD+33 854, BD+33 854A, * 56 Per A, uvby98 100027786, HD 27786A, HIP 20591, SAO 57216, PPM 69394, UCAC4 620-015740, ** BAS 4AaAb, TD1 3118, PLX 969, 2MASS J04243746+3357349, WEB 3945, GSC 02380-02429, AG+33 421, WD 0421+336, ADS 3188 A, GCRV 2553, IRAS 04213+3350, WD 0421+338, * 56 Per, ** STT 81A, Gaia DR3 172817599818083712, Gaia DR2 172817599818083712, 1RXS J042437.7+335743, SKY# 6798, HD 27786, TYC 2380-2429-1, WDS J04246+3358A, UBV M 10116, CCDM J04246+3358A, HR 1379, TIC 429102184, PLX 969.00, GC 5335, GEN# +1.00027786, WDS J04246+3358AaAb, HIC 20591
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 04 24 37.52 (0.1) | 04 24 37.52 (0.08) | 04 24 37.46 (0.1) | 04 24 37.68 | ||
| Declination | 33 57 33.84 (0.06) | 33 57 33.89 (0.05) | 33 57 35.29 (0.06) | 33 57 39.60 | ||
| Spectral type | F4IV-V+DA | DA3.5 | ||||
| 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] | 23.79 (0.1) | 23.51 (0.09) | 23.79 (0.1) | ||
| Distance | [pc] | 42.03 (0.2) | 42.54 (0.2) | 42.03 (0.2) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 46.03404889 (0.2) | 43.818 (0.2) | 46.034 (0.1) | ||
| Proper motion (declination) | [mas/yr] | -90.46650145 (0.1) | -90.502 (0.1) | -90.467 (0.1) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | yes | |||||
| B magnitude | 6.18 (0.01) | |||||
| V magnitude | 5.79 (0.01) | |||||
| R magnitude | 6.90 (0.4) | |||||
| I magnitude | ||||||
| J magnitude | 4.89 (0.04) | |||||
| H magnitude | 4.73 (0.02) | |||||
| K magnitude | 4.71 (0.02) | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 5.68 (0.001) | 5.66 | 5.68 (0.003) | |||
| BP magnitude | 5.89 (0.001) | 5.90 | ||||
| RP magnitude | 5.32 (0.002) | 5.34 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| 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.