All names: [HMT98] AS 03-0, TYC 22-821-1, GSC 00022-00821, TIC 344719037, SBC9 2126, WD 0101+039, LAMOST J010421.67+041337.0, Gaia DR2 2551900379931546240, Renson 1630, FB 13, PG0101+039, LAMOST J010421.68+041336.5, GEN# +6.20001011, PB 6252, uvby98 620001011, HIP 5023, Gaia DR3 2551900379931546240, PG 0101+039, UCAC2 33161546, [TFW97] J010421.67+041337.26, FS 3, GALEX J010421.5+041340, UBV 1038, CSI+03-01011, 2MASS J01042167+0413369, EPIC 220376019, HIC 5023, Feige 11, UBV M 43300, Gaia EDR3 2551900379931546240
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Geier 2020 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 04 21.69 (0.04) | 01 04 21.67 | 01 04 21.69 (0.1) | 01 04 21.67 (0.04) | 01 04 21.05 | |||
| Declination | 04 13 36.58 (0.03) | 04 13 37.30 | 04 13 36.60 (0.05) | 04 13 37.05 (0.03) | 04 13 34.68 | |||
| Spectral type | sdB+WD | sdB2VIHe4 | __1.8 sd | |||||
| Effective temperature | [K] | 27500.0 (500) | ||||||
| log(g) | [cgs] | 5.53 (0.07) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 2.93 (0.05) | 2.66 (0.1) | 2.66 (0.1) | 2.93 (0.05) | |||
| Distance | [pc] | 340.78 (5) | 376.48 (17) | 376.47 (17) | 340.79 (5) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 10.82813882 (0.06) | 11.057 (0.2) | 11.05732722 (0.2) | 10.828 (0.06) | |||
| Proper motion (declination) | [mas/yr] | -29.55334224 (0.04) | -29.354 (0.09) | -29.35400497 (0.09) | -29.553 (0.04) | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 11.83 (0.0007) | |||||||
| V magnitude | 12.06 (0.0007) | |||||||
| R magnitude | 12.18 (0.0007) | |||||||
| I magnitude | 12.32 (0.0008) | |||||||
| J magnitude | 12.65 (0.03) | 12.65 (0.03) | ||||||
| H magnitude | 12.76 (0.03) | 12.76 (0.03) | ||||||
| K magnitude | 12.88 (0.02) | 12.88 (0.02) | ||||||
| u magnitude | 12.79 (0.003) | |||||||
| g magnitude | 12.14 (0.001) | |||||||
| r magnitude | 12.40 (0.002) | |||||||
| i magnitude | 13.83 (0.009) | |||||||
| z magnitude | 13.35 (0.005) | |||||||
| G magnitude | 12.03 (0.001) | 12.05 (0.0006) | 12.05 | 12.03 (0.003) | ||||
| BP magnitude | 11.90 (0.001) | 11.86 (0.005) | 11.86 | |||||
| RP magnitude | 12.29 (0.0009) | 12.29 (0.002) | 12.29 | |||||
| Pan g magnitude | 12.26 | 12.26 | ||||||
| Pan r magnitude | 12.60 | 12.60 | ||||||
| Pan i magnitude | 12.85 | 12.85 | ||||||
| Pan z magnitude | 12.91 (0.002) | 12.91 (0.002) | ||||||
| Pan y magnitude | 13.08 (0.0007) | 13.08 (0.0007) | ||||||
| E(B-V) | 0.028 | |||||||
* 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.