SDSS J091709.55+463821.8
All names: EQ J0917+4638, [KAB2007] Cand 171, J0917+4638, Gaia EDR3 1011260873161111040, [BGK2006] J091709.55+463821.8, WD 0913+468, Gaia DR3 1011260873161111040, Gaia DR2 1011260873161111040, SDSS J091709.55+463821.8, SDSS J091709.55+463821.76, SDSS J091709.55+463821.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2016 | Gianninas et al. 2014 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 17 09.55 (0.2) | 09 17 09.55 | 09 17 09.55 (0.2) | 09 17 09.55 (0.2) | 09 17 09.43 | ||||||
| Declination | 46 38 21.64 (0.1) | 46 38 21.73 | 46 38 21.64 (0.2) | 46 38 21.67 (0.1) | 46 38 19.32 | ||||||
| Spectral type | sdA | sdA | DA | DA | DA4.5 | ||||||
| Effective temperature | [K] | 14046.0 | 12475.0 (151) | 12240.0 (180) | |||||||
| log(g) | [cgs] | 6.41 | 5.83 (0.05) | 5.75 (0.04) | |||||||
| Mass | [M☉] | 0.129 | 0.177 (0.05) | 0.174 | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.7920 (0.1) | |||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | -5.54 | ||||||||||
| 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] | 0.45 (0.2) | 1.07 (0.3) | 0.45 (0.2) | |||||||
| Distance | [pc] | 2221.98 (1164) | 937.73 (298) | 1956.00 (242) | 2222.22 (1164) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -2.411424743 (0.2) | -2.653425403 (0.5) | -2.411 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -1.667222292 (0.2) | -1.2795336 (0.5) | -1.667 (0.2) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | ||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.50 (0.03) | 19.49 (0.03) | 19.50 (0.03) | 19.42 | |||||||
| g magnitude | 18.76 (0.008) | 18.76 (0.02) | 18.76 (0.008) | 18.69 | |||||||
| r magnitude | 19.07 (0.01) | 19.07 (0.01) | 19.07 (0.01) | 19.01 | |||||||
| i magnitude | 19.31 (0.02) | 19.31 (0.02) | 19.29 (0.01) | 19.24 | |||||||
| z magnitude | 19.51 (0.05) | 19.49 (0.05) | 19.49 (0.05) | 19.45 | |||||||
| G magnitude | 18.95 (0.02) | 18.98 | 18.95 (0.003) | ||||||||
| BP magnitude | 18.95 (0.02) | 18.93 | |||||||||
| RP magnitude | 19.07 (0.04) | 18.96 | |||||||||
| Pan g magnitude | 18.82 (0.01) | ||||||||||
| Pan r magnitude | 19.06 (0.01) | ||||||||||
| Pan i magnitude | 19.36 (0.008) | ||||||||||
| Pan z magnitude | 19.53 (0.02) | ||||||||||
| Pan y magnitude | 19.60 (0.05) | ||||||||||
| E(B-V) | 0.021 | ||||||||||
* Constant surface field
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