GD 93
All names: WDJ084457.81+453632.94, LSPM J0844+4536, USNO-B1.0 1356-00208526, PSO J131.2406+45.6086, SDSS J084457.80+453632.8, Gaia DR2 917321936874346880, Gaia EDR3 917321936874346880, SDSS J084457.80+453632.7, HS 0841+4547, GEN# +6.10060093, SDSS J084457.81+453632.8, WD 0841+457, J0844+4536, Gaia DR3 917321936874346880, WIRED J084457.80+453632.8, TIC 117892271, GD 93, NLTT 20145, LP 164-48, US 1578, 2MASS J08445782+4536332, GALEX J084457.8+453632
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 44 57.73 (0.06) | 08 44 57.81 | 08 44 57.73 (0.06) | 08 44 57.73 | 08 44 57.81 (0.06) | 08 44 57.73 | 08 44 57.81 | 08 44 57.55 | 08 44 57.81 | |||||||||
| Declination | 45 36 29.97 (0.04) | 45 36 32.76 | 45 36 30.07 (0.04) | 45 36 29.97 | 45 36 32.93 (0.04) | 45 36 30.07 | 45 36 32.77 | 45 36 34.92 | 45 36 32.81 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 8529.0 (27) | 8600.0 (26) | 8535.0 (26) | 8500.0 | 9240.0 (20) | 8519.0 (49) | 9109.0 (16) | 9018.0 (19) | |||||||||
| log(g) | [cgs] | 7.45 (0.008) | 7.43 (0.008) | 7.41 (0.008) | 7.40 | 8.42 (0.03) | 7.46 (0.01) | 8.43 (0.02) | 8.33 (0.03) | |||||||||
| Mass | [M☉] | 0.333 (0.004) | 0.323 (0.004) | 0.316 (0.004) | 0.313 | 0.87 (0.02) | 0.333 (0.006) | 0.796 (0.02) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||||
| Cooling age | [Gyr] | 0.4800 | 0.5013 | 1.5488 | ||||||||||||||
| 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] | 16.45 (0.07) | 15.96 (0.08) | 15.96 (0.08) | 16.45 | 16.45 (0.07) | 15.96 (0.08) | |||||||||||
| Distance | [pc] | 60.80 (0.3) | 62.66 (0.3) | 62.64 (0.3) | 60.80 | 60.80 (0.3) | 62.64 (0.3) | |||||||||||
| Composition | H | H | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -57.66147487 (0.07) | -58.15464396 (0.1) | -57.661 (0.07) | -58.155 | -55.1 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -184.8676563 (0.06) | -185.5501195 (0.08) | -184.868 (0.06) | -185.55 | -185.0 | ||||||||||||
| Variability | ||||||||||||||||||
| Magnetic | ||||||||||||||||||
| Bd | [MG] | |||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||
| Binarity | ||||||||||||||||||
| B magnitude | 16.19 | |||||||||||||||||
| V magnitude | ||||||||||||||||||
| R magnitude | 15.70 | |||||||||||||||||
| I magnitude | ||||||||||||||||||
| J magnitude | 15.58 (0.01) | 15.59 (0.06) | ||||||||||||||||
| H magnitude | 15.60 (0.1) | 15.60 (0.1) | ||||||||||||||||
| K magnitude | 15.62 (0.2) | 15.62 (0.2) | ||||||||||||||||
| u magnitude | 16.43 (0.006) | 16.45 (0.006) | 16.43 (0.006) | 16.43 (0.006) | 16.42 (0.02) | 16.42 | 16.44 (0.02) | |||||||||||
| g magnitude | 15.96 (0.003) | 15.96 (0.003) | 15.96 (0.003) | 15.94 (0.01) | 15.94 | 15.96 (0.02) | ||||||||||||
| r magnitude | 15.96 (0.004) | 15.96 (0.004) | 15.96 (0.004) | 15.96 (0.01) | 15.96 | 15.96 (0.01) | ||||||||||||
| i magnitude | 16.02 (0.004) | 16.02 (0.004) | 16.02 (0.004) | 16.01 (0.01) | 16.01 | 16.02 (0.02) | ||||||||||||
| z magnitude | 16.15 (0.007) | 16.14 (0.007) | 16.14 (0.007) | 16.12 (0.02) | 16.12 | 16.15 (0.02) | ||||||||||||
| G magnitude | 15.89 (0.003) | 15.91 | 15.89 | 15.89 (0.003) | 15.91 | |||||||||||||
| BP magnitude | 16.00 (0.003) | 15.99 | 15.99 | |||||||||||||||
| RP magnitude | 15.71 (0.002) | 15.72 | 15.72 | |||||||||||||||
| Pan g magnitude | 15.97 (0.003) | 15.97 (0.002) | ||||||||||||||||
| Pan r magnitude | 15.97 (0.003) | 15.97 (0.002) | ||||||||||||||||
| Pan i magnitude | 16.03 (0.002) | 16.03 (0.002) | ||||||||||||||||
| Pan z magnitude | 16.13 (0.003) | 16.13 (0.003) | ||||||||||||||||
| Pan y magnitude | 16.23 (0.009) | 16.23 (0.01) | ||||||||||||||||
| E(B-V) | 0.001 | |||||||||||||||||
* Constant surface field
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