WD 0842+490
All names: WDS J08458+4853B, BD+49 1766B, HD 74389B, UCAC4 695-049360, SDSS J084548.95+485245.6, 2EUVE J0845+48.8, WD 0842+490, Gaia DR2 1015082573717076992, RE J084549+485252, UCAC3 278-109550, RE J0845+485, EUVE J0845+48.8, 2RE J0845+485, RBS 721, ** SDK 2B, 1RXS J084548.9+485241, [ZEH2003] RX J0845.8+4852 2, 2RE J084549+485255, Gaia EDR3 1015082573717076992, Gaia DR3 1015082573717076992
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Bedard et al. 2017 | Tremblay et al. 2017 | Stilism | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 45 48.95 (0.03) | 08 45 48.95 (0.05) | 08 45 48.95 | 08 45 48.96 (0.03) | 08 45 46.68 | ||||||
| Declination | 48 52 45.80 (0.03) | 48 52 45.80 (0.04) | 48 52 45.80 | 48 52 45.68 (0.03) | 48 52 38.64 | ||||||
| Spectral type | DA | DA | DA | DA | DA1.3 | DA1 | |||||
| Effective temperature | [K] | 26580.0 | 41885.0 (731) | 40250.0 (300) | 49732.0 (3478) | ||||||
| log(g) | [cgs] | 7.46 | 7.92 (0.07) | 8.09 (0.05) | 8.12 (0.03) | ||||||
| Mass | [M☉] | 0.404 | 0.751 (0.03) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.0139 | |||||||||
| 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] | 7.68 (0.04) | 7.67 (0.07) | 8.97 (0.6) | 7.68 | 7.68 (0.04) | 7.70 (0) | ||||
| Distance | [pc] | 130.17 (0.8) | 130.40 (1) | 111.50 (7) | 111.48 (7) | 130.17 | 130.16 (0.8) | 129.87 (0) | |||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -1.285011342 (0.04) | -1.43714352 (0.09) | -1.285 (0.04) | |||||||
| Proper motion (declination) | [mas/yr] | 7.563509686 (0.04) | 7.605184968 (0.08) | 7.564 (0.04) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.50 | ||||||||||
| V magnitude | 15.00 (0.05) | ||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 14.38 (0.003) | 14.38 | |||||||||
| g magnitude | 14.62 (0.003) | 14.62 | |||||||||
| r magnitude | 15.07 (0.003) | 15.07 | |||||||||
| i magnitude | 15.14 (0.003) | 15.14 | |||||||||
| z magnitude | 15.82 (0.008) | 15.82 | |||||||||
| G magnitude | 14.96 (0.003) | 14.97 | 14.96 | 14.96 (0.003) | |||||||
| BP magnitude | 14.80 (0.003) | 14.72 | |||||||||
| RP magnitude | 15.27 (0.003) | 15.25 | |||||||||
| Pan g magnitude | 14.76 (0.003) | ||||||||||
| Pan r magnitude | 15.21 (0.001) | ||||||||||
| Pan i magnitude | 15.55 (0.002) | ||||||||||
| Pan z magnitude | 15.83 (0.02) | ||||||||||
| Pan y magnitude | 15.99 (0.02) | ||||||||||
| E(B-V) | 0.006 | ||||||||||
* Constant surface field
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