WD 1536+520
All names: SBSS 1536+520, GALEX J153725.7+515126, SDSS J153725.68+515127.0, SDSS J153725.71+515126.9, SDSS J153725.72+515126.9, WIRED J153725.71+515126.9, SDSS J153725.72+515127.0, SDSS J153725.72+515126.90, Gaia EDR3 1595298501827000960, Gaia DR3 1595298501827000960, SDSS J153725.71+515126.8, Gaia DR2 1595298501827000960, WD 1536+520
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Genest-Beaulieu & Bergeron 2019 (photometric) | MWDD H | Gaia DR2 | Stilism | Koester & Kepler 2015 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 37 25.66 (0.06) | 15 37 25.72 | 15 37 25.66 (0.09) | 15 37 25.66 | 15 37 25.73 (0.06) | 15 37 25.72 | 15 37 25.58 | 15 37 25.72 | ||||||||
| Declination | 51 51 27.10 (0.06) | 51 51 26.85 | 51 51 27.10 (0.1) | 51 51 27.10 | 51 51 26.83 (0.06) | 51 51 27.00 | 51 51 25.56 | 51 51 26.92 | ||||||||
| Spectral type | DAB | DB | DBA | DBA | DBA | DBA | DB | |||||||||
| Effective temperature | [K] | 20199.0 | 18850.0 | 16709.0 | 17450.0 (40) | 19687.0 (907) | 25793.0 (251) | 24926.0 (259) | ||||||||
| log(g) | [cgs] | 7.87 | 7.95 | 7.70 | 7.75 (0.03) | 8.00 (0.04) | 8.36 (0.03) | 8.20 (0.03) | ||||||||
| Mass | [M☉] | 0.527 | 0.568 | 0.46 | 0.599 (0.03) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||
| Cooling age | [Gyr] | 0.0807 | ||||||||||||||
| log(H/He) | -2.157 | -3.12 (0.1) | ||||||||||||||
| log(C/He) | ||||||||||||||||
| log(Ca/He) | <-6.46 | |||||||||||||||
| 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] | 4.98 (0.07) | 4.88 (0.1) | 4.98 | 4.98 (0.07) | |||||||||||
| Distance | [pc] | 200.74 (3) | 204.99 (5) | 213.00 | 200.74 | 200.74 (3) | ||||||||||
| Composition | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -37.51680021 (0.07) | -37.78943687 (0.2) | -37.517 (0.07) | -32.9 | |||||||||||
| Proper motion (declination) | [mas/yr] | 17.28643488 (0.08) | 16.92001372 (0.3) | 17.286 (0.08) | 13.7 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | ||||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | ||||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | ||||||||||||||||
| H magnitude | ||||||||||||||||
| K magnitude | ||||||||||||||||
| u magnitude | 16.93 (0.007) | 16.93 (0.007) | 16.91 (0.01) | 16.91 | 16.93 (0.01) | |||||||||||
| g magnitude | 17.04 (0.004) | 17.04 (0.004) | 17.05 (0.01) | 17.04 | 17.05 (0.01) | |||||||||||
| r magnitude | 17.41 (0.005) | 17.41 (0.005) | 17.42 (0.01) | 17.42 | 17.42 (0.01) | |||||||||||
| i magnitude | 17.68 (0.007) | 17.68 (0.007) | 17.66 (0.02) | 17.66 | 17.68 (0.02) | |||||||||||
| z magnitude | 17.94 (0.02) | 17.94 (0.02) | 17.94 (0.03) | 17.94 | 17.95 (0.03) | |||||||||||
| G magnitude | 17.21 (0.005) | 17.23 | 17.21 | 17.21 (0.003) | ||||||||||||
| BP magnitude | 17.14 (0.005) | 17.05 | ||||||||||||||
| RP magnitude | 17.37 (0.01) | 17.35 | ||||||||||||||
| Pan g magnitude | 17.09 (0.005) | |||||||||||||||
| Pan r magnitude | 17.40 (0.008) | |||||||||||||||
| Pan i magnitude | 17.69 (0.004) | |||||||||||||||
| Pan z magnitude | 17.93 (0.007) | |||||||||||||||
| Pan y magnitude | 18.13 (0.01) | |||||||||||||||
| E(B-V) | 0.017 | |||||||||||||||
* Constant surface field
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