GD 307
All names: Gaia DR3 842958082837662080, LP 129-171, Gaia EDR3 842958082837662080, Gaia DR2 842958082837662080, 2MASS J11251888+5419361, USNO-B1.0 1443-00211701, PG 1122+546, SDSS J112518.84+541936.0, LSPM J1125+5419, J1125+5419, WDJ112518.88+541936.21, SBSS 1122+546, WD 1122+54, LAMOST J112518.85+541936.65, SDSS J112518.85+541936.0, WD 1122+546, LAMOST J112518.85+541936.6, TIC 341687513, SDSS J112518.84+541935.9, SDSS J112518.83+541935.9, GALEX J112518.8+541936, LB 2012, GD 307, EGGR 352, WIRED J112518.84+541936.0, SBSS 1122+546A
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Guo et al. 2015 | Zhao et al. 2013 | Gianninas et al. 2011 | Tremblay et al. 2011 | Liebert et al. 2005 | 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 | 11 25 18.62 (0.02) | 11 25 18.84 | 11 25 18.63 (0.03) | 11 25 18.85 | 11 25 18.62 | 11 25 18.88 (0.02) | 11 25 18.63 | 11 25 18.84 | 11 25 19.42 | 11 25 18.85 | |||||||||||
| Declination | 54 19 34.49 (0.02) | 54 19 35.97 | 54 19 34.54 (0.04) | 54 19 36.65 | 54 19 34.49 | 54 19 36.21 (0.02) | 54 19 34.54 | 54 19 35.97 | 54 19 36.48 | 54 19 36.00 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA3.3 | DA | DA_auto | DA4 | DA | DA | ||||||||
| Effective temperature | [K] | 14570.0 (106) | 14566.0 (104) | 14017.0 | 16106.0 (107) | 15272.0 (209) | 15050.0 (244) | 15640.0 (100) | 14380.0 (231) | 15259.0 (96) | 14660.0 (85) | 15385.0 (70) | |||||||||
| log(g) | [cgs] | 7.92 (0.006) | 7.93 (0.007) | 7.88 | 8.00 (0.02) | 7.85 (0.04) | 7.96 (0.05) | 8.05 (0.02) | 7.83 (0.05) | 7.97 (0.006) | 7.86 (0.02) | 8.01 (0.01) | |||||||||
| Mass | [M☉] | 0.565 (0.005) | 0.57 (0.005) | 0.546 | 0.62 (0.01) | 0.53 (0.02) | 0.59 (0.03) | 0.65 (0.01) | 0.52 (0.02) | 0.594 (0.005) | 0.618 (0.006) | ||||||||||
| log(Luminosity) | [L☉] | -2.09 | |||||||||||||||||||
| Cooling age | [Gyr] | 0.2037 | 0.1470 (0.01) | 0.1950 | 0.2089 | ||||||||||||||||
| 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] | 14.50 (0.03) | 14.59 (0.05) | 14.50 | 14.50 (0.03) | 14.59 (0.05) | |||||||||||||||
| Distance | [pc] | 68.97 (0.1) | 68.53 (0.2) | 73.00 | 70.00 | 74.00 | 68.97 | 68.97 (0.1) | 68.53 (0.2) | ||||||||||||
| Composition | H | H | H | H | |||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -138.8336992 (0.02) | -138.7866851 (0.06) | -138.834 (0.02) | -138.787 | -135.9 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -107.5344236 (0.03) | -107.6758496 (0.07) | -107.534 (0.03) | -107.676 | -110.0 | |||||||||||||||
| Variability | NOV | ||||||||||||||||||||
| Magnetic | |||||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||||
| Binarity | |||||||||||||||||||||
| B magnitude | 15.50 | ||||||||||||||||||||
| V magnitude | 15.43 | ||||||||||||||||||||
| R magnitude | 15.50 | ||||||||||||||||||||
| I magnitude | |||||||||||||||||||||
| J magnitude | 15.77 (0.06) | ||||||||||||||||||||
| H magnitude | 15.86 (0.1) | ||||||||||||||||||||
| K magnitude | 15.71 (0.2) | ||||||||||||||||||||
| u magnitude | 15.62 (0.005) | 15.62 | 15.62 (0.005) | 15.62 (0.005) | 15.62 (0.01) | 15.61 | 15.63 (0.01) | ||||||||||||||
| g magnitude | 15.28 (0.004) | 15.28 | 15.28 (0.004) | 15.28 (0.004) | 15.31 (0.02) | 15.30 | 15.31 (0.02) | ||||||||||||||
| r magnitude | 15.57 (0.003) | 15.57 | 15.57 (0.003) | 15.57 (0.003) | 15.58 (0.01) | 15.57 | 15.57 (0.01) | ||||||||||||||
| i magnitude | 15.83 (0.004) | 15.83 | 15.83 (0.004) | 15.83 (0.004) | 15.84 (0.01) | 15.84 | 15.83 (0.01) | ||||||||||||||
| z magnitude | 16.07 (0.008) | 16.08 | 16.07 (0.008) | 16.07 (0.008) | 16.09 (0.02) | 16.09 | 16.08 (0.02) | ||||||||||||||
| G magnitude | 15.43 (0.001) | 15.45 | 15.43 | 15.43 (0.003) | 15.45 | ||||||||||||||||
| BP magnitude | 15.39 (0.001) | 15.37 | 15.37 | ||||||||||||||||||
| RP magnitude | 15.53 (0.002) | 15.54 | 15.54 | ||||||||||||||||||
| Pan g magnitude | 15.33 (0.003) | ||||||||||||||||||||
| Pan r magnitude | 15.58 (0.001) | ||||||||||||||||||||
| Pan i magnitude | 15.84 (0.002) | ||||||||||||||||||||
| Pan z magnitude | 16.09 (0.003) | ||||||||||||||||||||
| Pan y magnitude | 16.24 (0.007) | ||||||||||||||||||||
| E(B-V) | 0.004 | ||||||||||||||||||||
* Constant surface field
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