SDSS J154939.73+415630.3
All names: SDSS J154939.74+415630.4, Gaia EDR3 1384076300880432128, Gaia DR2 1384076300880432128, SDSS J154939.72+415630.4, SDSS J154939.73+415630.3, Gaia DR3 1384076300880432128, WD 1547+420, GALEX J154939.8+415630, SDSS J154939.73+415630.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 49 39.74 (0.4) | 15 49 39.72 | 15 49 39.74 (0.6) | 15 49 39.73 (0.4) | 15 49 39.73 | 15 49 39.19 | 15 49 39.74 | |||||
| Declination | 41 56 30.34 (0.4) | 41 56 30.40 | 41 56 30.34 (0.5) | 41 56 30.36 (0.4) | 41 56 30.39 | 41 56 27.24 | 41 56 30.40 | |||||
| Spectral type | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 16868.0 | 22490.0 (893) | 22601.0 (912) | ||||||||
| log(g) | [cgs] | 7.14 | 7.80 (0.2) | 7.82 (0.2) | ||||||||
| Mass | [M☉] | 0.282 | 0.543 (0.07) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0563 | ||||||||||
| 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] | 1.05 (0.5) | 0.87 (0.6) | 1.05 (0.5) | ||||||||
| Distance | [pc] | 953.33 (438) | 1152.34 (808) | 953.29 (437) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 7.948717544 (0.5) | 7.626443883 (1) | 7.949 (0.5) | 3.1 | |||||||
| Proper motion (declination) | [mas/yr] | -1.449813563 (0.6) | -1.411171175 (1) | -1.45 (0.6) | 3.8 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 20.00 (0.04) | 20.00 (0.04) | 20.01 (0.04) | 20.01 | 20.03 (0.04) | |||||||
| g magnitude | 19.97 (0.02) | 19.97 (0.02) | 20.05 (0.03) | 20.05 | 20.05 (0.03) | |||||||
| r magnitude | 20.44 (0.04) | 20.44 (0.04) | 20.52 (0.04) | 20.52 | 20.53 (0.04) | |||||||
| i magnitude | 20.73 (0.06) | 20.73 (0.06) | 20.78 (0.06) | 20.78 | 20.78 (0.06) | |||||||
| z magnitude | 20.71 (0.2) | 20.70 (0.2) | 20.79 (0.2) | 20.79 | 20.78 (0.2) | |||||||
| G magnitude | 20.25 (0.07) | 20.33 | 20.25 (0.006) | |||||||||
| BP magnitude | 20.35 (0.07) | 20.37 | ||||||||||
| RP magnitude | 20.07 (0.2) | 20.10 | ||||||||||
| Pan g magnitude | 20.07 (0.02) | |||||||||||
| Pan r magnitude | 20.43 (0.02) | |||||||||||
| Pan i magnitude | 20.72 (0.03) | |||||||||||
| Pan z magnitude | 20.96 (0.02) | |||||||||||
| Pan y magnitude | ||||||||||||
| E(B-V) | 0.021 | |||||||||||
* Constant surface field
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