WD 1521+044
All names: SDSS J152349.89+041434.4, Gaia DR2 4422456906192236544, SDSS J152349.89+041434.6, SDSS J152349.88+041434.4, SDSS J152349.90+041434.6, Gaia DR3 4422456906192236544, Gaia EDR3 4422456906192236544, WD 1521+044, GALEX J152349.9+041434
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 23 49.87 (0.2) | 15 23 49.89 | 15 23 49.87 (0.2) | 15 23 49.87 | 15 23 49.90 (0.2) | 15 23 49.89 | 15 23 48.86 | 15 23 49.90 | 15 23 49.90 | ||||||
| Declination | 04 14 34.31 (0.1) | 04 14 34.61 | 04 14 34.33 (0.2) | 04 14 34.31 | 04 14 34.67 (0.1) | 04 14 34.64 | 04 14 30.48 | 04 14 34.61 | 04 14 34.62 | ||||||
| Spectral type | DA | DA | DA | DA | DA | DA2.1 | DA | DA | |||||||
| Effective temperature | [K] | 18241.0 | 24960.0 (480) | 23426.0 (2174) | 23852.0 (542) | 24115.0 (358) | 24115.0 (577) | ||||||||
| log(g) | [cgs] | 7.75 | 7.95 (0.07) | 8.01 (0.1) | 7.93 (0.07) | 7.94 (0.05) | 7.96 (0.07) | ||||||||
| Mass | [M☉] | 0.49 | 0.61 (0.04) | 0.635 (0.09) | 0.602 (0.02) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.0612 | 0.0219 | ||||||||||||
| 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] | 2.56 (0.2) | 2.55 (0.2) | 2.56 | 2.56 (0.2) | ||||||||||
| Distance | [pc] | 390.60 (27) | 392.07 (35) | 390.60 | 390.59 (27) | ||||||||||
| Composition | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -21.00954633 (0.2) | -21.39400543 (0.4) | -21.01 (0.2) | -6.2 | -6.0 | |||||||||
| Proper motion (declination) | [mas/yr] | -22.06996481 (0.2) | -21.89958277 (0.4) | -22.07 (0.2) | -20.0 | -23.0 | |||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 18.90 (0.1) | ||||||||||||||
| H magnitude | 19.00 (0.1) | ||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 18.33 (0.01) | 18.33 (0.01) | 18.35 (0.03) | 18.34 | 18.33 (0.03) | 18.34 (0.03) | |||||||||
| g magnitude | 18.36 (0.007) | 18.36 (0.007) | 18.37 (0.02) | 18.37 | 18.36 (0.02) | 18.37 (0.02) | |||||||||
| r magnitude | 18.75 (0.01) | 18.75 (0.01) | 18.72 (0.01) | 18.72 | 18.72 (0.01) | 18.72 (0.01) | |||||||||
| i magnitude | 19.04 (0.01) | 19.04 (0.01) | 19.05 (0.02) | 19.04 | 19.04 (0.02) | 19.04 (0.02) | |||||||||
| z magnitude | 19.30 (0.05) | 19.30 (0.06) | 19.28 (0.06) | 19.28 | 19.27 (0.06) | 19.28 (0.06) | |||||||||
| G magnitude | 18.56 (0.03) | 18.59 | 18.56 | 18.56 (0.004) | |||||||||||
| BP magnitude | 18.49 (0.03) | 18.50 | |||||||||||||
| RP magnitude | 18.72 (0.05) | 18.72 | |||||||||||||
| Pan g magnitude | 18.40 (0.008) | ||||||||||||||
| Pan r magnitude | 18.73 (0.006) | ||||||||||||||
| Pan i magnitude | 19.05 (0.007) | ||||||||||||||
| Pan z magnitude | 19.28 (0.02) | ||||||||||||||
| Pan y magnitude | 19.49 (0.03) | ||||||||||||||
| E(B-V) | 0.031 | ||||||||||||||
* Constant surface field
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