WD 1204+450
All names: GALEX J120647.3+444954, FBS B 303, Gaia DR2 1539240932275710720, PG 1204+451, Gaia DR3 1539240932275710720, SDSS J120647.51+444954.4, Gaia EDR3 1539240932275710720, WD 1204+450, USNO-B1.0 1348-00235053, TIC 148684414, Balloon 113435003, FBS 1204+450, SBC9 2051, UCAC4 675-056135, 2MASS J12064753+4449546
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 06 47.48 (0.02) | 12 06 47.48 (0.02) | 12 06 47.48 | 12 06 47.54 (0.02) | 12 06 45.17 | |||||
| Declination | 44 49 54.28 (0.02) | 44 49 54.29 (0.03) | 44 49 54.28 | 44 49 54.41 (0.02) | 44 48 54.36 | |||||
| Spectral type | DA | DA | DA | DA2.1 | DA2 | |||||
| Effective temperature | [K] | 18980.0 | 23610.0 (383) | 22583.0 (268) | ||||||
| log(g) | [cgs] | 7.23 | 7.80 (0.05) | 7.41 (0.01) | ||||||
| Mass | [M☉] | 0.311 | 0.53 (0.02) | 0.374 (0.005) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.0227 | ||||||||
| 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] | 8.20 (0.04) | 8.31 (0.04) | 8.20 | 8.20 (0.04) | |||||
| Distance | [pc] | 121.91 (0.5) | 120.41 (0.6) | 91.00 | 121.91 | 121.91 (0.5) | ||||
| Composition | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -41.60073387 (0.03) | -41.50004715 (0.05) | -41.601 (0.03) | ||||||
| Proper motion (declination) | [mas/yr] | -8.12649774 (0.04) | -8.228880589 (0.06) | -8.126 (0.04) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | yes | |||||||||
| B magnitude | 14.61 (0.03) | |||||||||
| V magnitude | 14.37 (0.09) | |||||||||
| R magnitude | 13.90 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 15.61 (0.05) | |||||||||
| H magnitude | 15.78 (0.1) | |||||||||
| K magnitude | ||||||||||
| u magnitude | 14.85 (0.004) | 16.79 | ||||||||
| g magnitude | 15.05 (0.003) | 15.32 | ||||||||
| r magnitude | 15.27 (0.003) | 14.93 | ||||||||
| i magnitude | 15.64 (0.004) | 14.74 | ||||||||
| z magnitude | 15.90 (0.007) | 14.67 | ||||||||
| G magnitude | 15.09 (0.001) | 15.11 | 15.09 | 15.09 (0.003) | ||||||
| BP magnitude | 14.99 (0.001) | 14.95 | ||||||||
| RP magnitude | 15.29 (0.003) | 15.29 | ||||||||
| Pan g magnitude | 14.96 (0.003) | |||||||||
| Pan r magnitude | 15.29 (0.003) | |||||||||
| Pan i magnitude | 15.63 (0.004) | |||||||||
| Pan z magnitude | 15.87 (0.007) | |||||||||
| Pan y magnitude | 16.05 (0.007) | |||||||||
| E(B-V) | 0.006 | |||||||||
* Constant surface field
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