EGGR 377
All names: EGGR 377, USNO-B1.0 1092-00551469, PM J21020+1912, Gaia DR3 1789361097242243584, Gaia EDR3 1789361097242243584, PLX 5048.01, G144-51, GALEX J210202.6+191256, WD 2059+19, WDJ210202.67+191257.67, 2MASS J21020266+1912574, UBV M 53806, Gaia DR2 1789361097242243584, LSPM J2102+1912, NLTT 50382, TIC 258593322, PSO J315.5105+19.2147, 21020+1912, UCAC2 38709929, GEN# +9.80144051, USNO 192, WD 2059+190, G 144-51, J2102+1912, G 145-4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Koester et al. 2009 | Bergeron et al. 2001 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 02 02.53 (0.04) | 21 02 02.53 (0.06) | 21 02 02.53 (0.06) | 21 02 02.53 | 21 02 02.67 (0.04) | 21 02 02.53 | 21 02 03.46 | ||||||||||||
| Declination | 19 12 52.80 (0.03) | 19 12 52.96 (0.04) | 19 12 52.96 (0.04) | 19 12 52.80 | 19 12 57.68 (0.03) | 19 12 52.96 | 19 13 03.36 | ||||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA | DA7.2 | DA8 | ||||||||
| Effective temperature | [K] | 6666.0 (52) | 6720.0 (18) | 6621.7 (47) | 6650.0 (45) | 6641.0 | 6920.0 (108) | 6980.0 (111) | 6215.0 (12) | 6840.0 (160) | 6900.0 (160) | 6708.0 (30) | |||||||
| log(g) | [cgs] | 8.03 (0.02) | 8.06 (0.005) | 8.02 (0.02) | 8.04 (0.02) | 8.03 | 8.45 (0.1) | 8.44 (0.1) | 6.97 (0.03) | 7.86 (0.3) | 7.89 (0.3) | 8.05 (0.008) | |||||||
| Mass | [M☉] | 0.608 (0.01) | 0.625 (0.005) | 0.615 (0.01) | 0.606 | 0.88 (0.06) | 0.87 (0.07) | 0.51 (0.1) | 0.53 (0.1) | 0.621 (0.007) | |||||||||
| log(Luminosity) | [L☉] | -3.75 | -3.42 (0.1) | -3.42 (0.1) | |||||||||||||||
| Cooling age | [Gyr] | 1.9000 | 1.8500 (0.07) | 1.8110 | 1.3300 (0.5) | 1.4200 (0.5) | |||||||||||||
| 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] | 30.52 (0.05) | 30.52 (0.05) | 30.39 (0.07) | 30.39 (0.07) | 30.39 (0.07) | 30.39 (0.07) | 26.10 (4) | 26.10 (4) | 26.10 (4) | 30.52 | 30.52 (0.05) | 30.39 (0.07) | 25.00 (4) | |||||
| Distance | [pc] | 32.77 (0.05) | 32.77 (0.05) | 32.91 (0.08) | 32.90 (0.07) | 32.90 (0.07) | 32.90 (0.07) | 38.30 (7) | 27.00 | 38.31 (6) | 38.31 (6) | 32.77 | 32.77 (0.05) | 32.90 (0.07) | 40.00 (6) | ||||
| Composition | H | H | H | H | H | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -128.9132709 (0.04) | -128.8875261 (0.1) | -128.913 (0.04) | -128.8875261 | ||||||||||||||
| Proper motion (declination) | [mas/yr] | -304.5184079 (0.04) | -304.2325051 (0.1) | -304.518 (0.04) | -304.2325051 | ||||||||||||||
| Variability | NOV | ||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | 16.79 | 16.79 | 16.77 | ||||||||||||||||
| V magnitude | 16.36 | 16.36 | 16.36 | ||||||||||||||||
| R magnitude | 16.10 | 16.10 | 16.20 | ||||||||||||||||
| I magnitude | 15.82 | 15.82 | |||||||||||||||||
| J magnitude | 15.50 (0.008) | 15.64 (0.07) | 15.52 | 15.52 | 15.64 (0.07) | ||||||||||||||
| H magnitude | 15.56 (0.1) | 15.56 (0.1) | 15.36 | 15.39 | 15.56 (0.1) | ||||||||||||||
| K magnitude | 15.40 (0.2) | 15.40 (0.2) | 15.34 | 15.36 | 15.40 (0.2) | ||||||||||||||
| u magnitude | |||||||||||||||||||
| g magnitude | 16.47 (0.003) | ||||||||||||||||||
| r magnitude | 16.27 (0.002) | ||||||||||||||||||
| i magnitude | 16.21 (0.002) | ||||||||||||||||||
| z magnitude | 16.22 (0.003) | ||||||||||||||||||
| G magnitude | 16.23 (0.003) | 16.25 | 16.25 | 16.23 | 16.23 (0.003) | 16.25 | |||||||||||||
| BP magnitude | 16.45 (0.003) | 16.45 | 16.45 | ||||||||||||||||
| RP magnitude | 15.86 (0.003) | 15.86 | 15.86 | ||||||||||||||||
| Pan g magnitude | 16.47 (0.002) | 16.47 (0.002) | 16.47 (0.002) | ||||||||||||||||
| Pan r magnitude | 16.27 (0.002) | 16.27 (0.002) | 16.27 (0.002) | ||||||||||||||||
| Pan i magnitude | 16.21 (0.002) | 16.21 (0.002) | 16.21 (0.002) | ||||||||||||||||
| Pan z magnitude | 16.22 (0.003) | 16.22 (0.003) | 16.22 (0.003) | ||||||||||||||||
| Pan y magnitude | 16.25 (0.005) | 16.25 (0.005) | 16.25 (0.005) | ||||||||||||||||
| E(B-V) | 0.001 | ||||||||||||||||||
* Constant surface field
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