EGGR 344
All names: G 193-74, Gaia DR3 984190381489031424, Gaia DR2 984190381489031424, EGGR 344, SDSS J075327.21+522930.4, TIC 284021737, PM J07534+5229, USNO-B1.0 1424-00222172, J0753+5229, PSO J118.3630+52.4911, WIRED J075327.21+522930.5, Gaia EDR3 984190381489031424, WD 0749+52, CNS5 1941, SDSS J075327.22+522930.4, GALEX J075327.1+522930, WDJ075327.26+522931.47, WD 0749+526, 2MASS J07532726+5229315, SDSS J075327.22+522930.5, LSPM J0753+5229, 07534+5229, NLTT 18552
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 53 27.11 (0.03) | 07 53 27.22 | 07 53 27.11 (0.04) | 07 53 27.11 (0.04) | 07 53 27.11 | 07 53 27.26 (0.03) | 07 53 27.11 | 07 53 27.86 | 07 53 27.22 | |||||||||||
| Declination | 52 29 27.38 (0.02) | 52 29 30.45 | 52 29 27.51 (0.03) | 52 29 27.51 (0.03) | 52 29 27.38 | 52 29 31.47 (0.02) | 52 29 27.51 | 52 29 35.16 | 52 29 30.53 | |||||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC7 | DC | DC | ||||||
| Effective temperature | [K] | 7164.0 (20) | 7259.0 (63) | 7251.0 (16) | 7185.4 (35) | 7395.0 (190) | 7845.0 | 7531.0 | 6950.0 (148) | 7016.0 (44) | 10080.0 (6) | |||||||||
| log(g) | [cgs] | 8.28 (0.004) | 8.32 (0.02) | 8.30 (0.004) | 8.30 (0.01) | 8.40 (0.05) | 8.53 | 8.44 | 8.00 (0) | 8.28 (0.009) | 9.82 (0.2) | |||||||||
| Mass | [M☉] | 0.755 (0.004) | 0.78 (0.01) | 0.769 (0.003) | 0.837 (0.04) | 0.936 | 0.861 | 0.58 (0.1) | 0.751 (0.008) | |||||||||||
| log(Luminosity) | [L☉] | -3.48 | ||||||||||||||||||
| Cooling age | [Gyr] | 2.6600 | 2.9530 (0.1) | 3.0420 | 2.9620 | |||||||||||||||
| log(H/He) | -3.4 | -3.6 | ||||||||||||||||||
| log(C/He) | ||||||||||||||||||||
| log(Ca/He) | ||||||||||||||||||||
| log(Ca/H) | ||||||||||||||||||||
| log(N/He) | ||||||||||||||||||||
| log(O/He) | ||||||||||||||||||||
| log(Na/He) | ||||||||||||||||||||
| log(Mg/He) | ||||||||||||||||||||
| log(Al/He) | ||||||||||||||||||||
| log(Si/He) | ||||||||||||||||||||
| log(P/He) | ||||||||||||||||||||
| log(S/He) | ||||||||||||||||||||
| log(Cl/He) | ||||||||||||||||||||
| log(Sc/He) | ||||||||||||||||||||
| log(Ti/He) | ||||||||||||||||||||
| log(V/He) | ||||||||||||||||||||
| log(Cr/He) | ||||||||||||||||||||
| log(Mn/He) | ||||||||||||||||||||
| log(Fe/He) | ||||||||||||||||||||
| log(Co/He) | ||||||||||||||||||||
| log(Ni/He) | ||||||||||||||||||||
| log(Cu/He) | ||||||||||||||||||||
| log(Zn/He) | ||||||||||||||||||||
| log(Ga/He) | ||||||||||||||||||||
| log(Ge/He) | ||||||||||||||||||||
| log(Sr/He) | ||||||||||||||||||||
| Parallax | [mas] | 45.83 (0.04) | 45.83 (0.04) | 45.82 (0.05) | 45.82 (0.05) | 45.82 (0.05) | 45.82 (0.05) | 45.83 | 45.83 (0.04) | 45.82 (0.05) | ||||||||||
| Distance | [pc] | 21.82 (0.02) | 21.82 (0.02) | 21.82 (0.02) | 21.83 (0.02) | 21.83 (0.02) | 21.83 (0.02) | 27.50 (4) | 21.82 | 21.82 (0.02) | 21.83 (0.02) | |||||||||
| Composition | He | He | He | He | ||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -88.33564267 (0.04) | -88.36627337 (0.07) | -88.336 (0.04) | -88.366 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -255.292879 (0.03) | -255.4232068 (0.05) | -255.293 (0.03) | -255.423 | |||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | 15.93 | |||||||||||||||||||
| V magnitude | 15.67 | |||||||||||||||||||
| R magnitude | 15.51 | |||||||||||||||||||
| I magnitude | 15.35 | |||||||||||||||||||
| J magnitude | 15.09 (0.006) | 15.08 (0.04) | 15.08 (0.04) | |||||||||||||||||
| H magnitude | 15.25 (0.1) | 15.25 (0.1) | 15.25 (0.1) | |||||||||||||||||
| K magnitude | 15.08 (0.1) | 15.08 (0.1) | 15.08 (0.1) | |||||||||||||||||
| u magnitude | 16.13 (0.006) | 16.10 (0.005) | 16.13 (0.006) | 16.13 (0.006) | 16.11 (0.02) | |||||||||||||||
| g magnitude | 15.67 (0.003) | 15.66 (0.002) | 15.67 (0.003) | 15.68 (0.02) | ||||||||||||||||
| r magnitude | 15.58 (0.004) | 15.58 (0.002) | 15.58 (0.004) | 15.58 (0.02) | ||||||||||||||||
| i magnitude | 15.58 (0.004) | 15.60 (0.003) | 15.59 (0.004) | 15.58 (0.02) | ||||||||||||||||
| z magnitude | 15.66 (0.006) | 15.69 (0.002) | 15.66 (0.006) | 15.66 (0.01) | ||||||||||||||||
| G magnitude | 15.53 (0.002) | 15.55 | 15.55 | 15.53 | 15.53 (0.003) | 15.55 | ||||||||||||||
| BP magnitude | 15.68 (0.002) | 15.67 | 15.67 | |||||||||||||||||
| RP magnitude | 15.27 (0.002) | 15.27 | 15.27 | |||||||||||||||||
| Pan g magnitude | 15.66 (0.0009) | 15.66 (0.002) | 15.66 (0.002) | |||||||||||||||||
| Pan r magnitude | 15.58 (0.002) | 15.58 (0.002) | 15.58 (0.002) | |||||||||||||||||
| Pan i magnitude | 15.60 (0.003) | 15.60 (0.003) | 15.60 (0.003) | |||||||||||||||||
| Pan z magnitude | 15.69 (0.002) | 15.69 (0.002) | 15.69 (0.002) | |||||||||||||||||
| Pan y magnitude | 15.76 (0.01) | 15.76 (0.01) | 15.76 (0.01) | |||||||||||||||||
| E(B-V) | 0.000 | |||||||||||||||||||
* Constant surface field
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