EGGR 85
All names: CSI+18-11542, PLX 2759.01, Gaia EDR3 3926968661219149184, USNO-B1.0 1083-00218211, SDSS J115643.72+182219.6, J1156+1822, G 57-29, WD 1154+186, LP 434-97, G 121-33, SDSS J115643.72+182219.5, UBV 10725, NLTT 29040, Gaia DR2 3926968661219149184, LTT 13302, 11567+1822, PM J11567+1822, LAWD 39, Gaia DR3 3926968661219149184, LSPM J1156+1822, 2MASS J11564386+1822196, GALEX J115643.7+182219, WDJ115643.84+182219.54, SDSS J115643.71+182219.5, uvby98 980121033, EGGR 85, PB 3731, WD 1154+18, PSO J179.1814+18.3721, GEN# +9.80057029, TIC 202362742, L 1261-24, USNO 531
| 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 | Bergeron et al. 2001 | 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 | 11 56 43.47 (0.03) | 11 56 43.72 | 11 56 43.48 (0.06) | 11 56 43.48 (0.06) | 11 56 43.47 | 11 56 43.84 (0.03) | 11 56 43.48 | 11 56 45.19 | 11 56 43.72 | ||||||||||||
| Declination | 18 22 19.65 (0.02) | 18 22 19.56 | 18 22 19.65 (0.03) | 18 22 19.65 (0.03) | 18 22 19.65 | 18 22 19.54 (0.02) | 18 22 19.65 | 18 22 18.12 | 18 22 19.57 | ||||||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | DZ | DC | DZ5 | DZ | DC | ||||||
| Effective temperature | [K] | 7341.0 (24) | 7472.0 (62) | 7356.0 (19) | 7434.2 (30) | 7475.0 (220) | 7984.0 | 7675.0 | 7710.0 (221) | 7630.0 (220) | 7290.0 (44) | 10080.0 (2) | |||||||||
| log(g) | [cgs] | 8.04 (0.006) | 8.09 (0.02) | 8.05 (0.005) | 8.09 (0.01) | 8.15 (0.07) | 8.31 | 8.22 | 8.07 (0.2) | 8.06 (0.2) | 8.05 (0.009) | 9.89 (0.1) | |||||||||
| Mass | [M☉] | 0.602 (0.005) | 0.631 (0.01) | 0.607 (0.004) | 0.671 (0.05) | 0.794 | 0.713 | 0.62 (0.1) | 0.61 (0.1) | 0.608 (0.008) | |||||||||||
| log(Luminosity) | [L☉] | -3.34 | -3.35 (0.09) | ||||||||||||||||||
| Cooling age | [Gyr] | 1.5500 | 1.6750 (0.2) | 1.8980 | 1.7400 | 1.4400 (0.3) | |||||||||||||||
| log(H/He) | -3.6 | -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] | 37.38 (0.04) | 37.38 (0.04) | 37.45 (0.07) | 37.45 (0.07) | 37.45 (0.07) | 37.45 (0.07) | 33.50 (4) | 33.50 (4) | 37.38 | 37.38 (0.04) | 37.45 (0.07) | 38.00 | ||||||||
| Distance | [pc] | 26.75 (0.03) | 26.75 (0.03) | 26.70 (0.05) | 26.70 (0.05) | 26.70 (0.05) | 26.70 (0.05) | 29.90 (4) | 29.85 (3) | 26.75 | 26.75 (0.03) | 26.70 (0.05) | 26.32 | ||||||||
| Composition | He | He | He | He | He | ||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -336.4588767 (0.04) | -336.3889949 (0.1) | -336.459 (0.04) | -336.389 | ||||||||||||||||
| Proper motion (declination) | [mas/yr] | 6.784685214 (0.03) | 6.661977847 (0.08) | 6.785 (0.03) | 6.662 | ||||||||||||||||
| Variability | |||||||||||||||||||||
| Magnetic | |||||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||||
| Binarity | |||||||||||||||||||||
| B magnitude | 15.87 | 15.84 | |||||||||||||||||||
| V magnitude | 15.61 | ||||||||||||||||||||
| R magnitude | 15.43 | 15.60 | |||||||||||||||||||
| I magnitude | 15.24 | ||||||||||||||||||||
| J magnitude | 15.14 (0.006) | 15.10 (0.04) | 15.15 | 15.10 (0.04) | |||||||||||||||||
| H magnitude | 15.22 (0.1) | 15.22 (0.1) | 15.03 | 15.22 (0.1) | |||||||||||||||||
| K magnitude | 15.09 (0.1) | 15.09 (0.1) | 15.02 | 15.09 (0.1) | |||||||||||||||||
| u magnitude | 16.10 (0.006) | 16.10 (0.006) | 16.10 (0.006) | 16.10 (0.006) | 16.10 (0.02) | ||||||||||||||||
| g magnitude | 15.66 (0.003) | 15.67 (0.003) | 15.66 (0.003) | 15.69 (0.02) | |||||||||||||||||
| r magnitude | 15.57 (0.003) | 15.60 (0.002) | 15.57 (0.003) | 15.56 (0.01) | |||||||||||||||||
| i magnitude | 15.60 (0.003) | 15.63 (0.003) | 15.60 (0.003) | 15.60 (0.01) | |||||||||||||||||
| z magnitude | 15.70 (0.006) | 15.72 (0.004) | 15.70 (0.006) | 15.70 (0.02) | |||||||||||||||||
| G magnitude | 15.54 (0.002) | 15.56 | 15.56 | 15.54 | 15.54 (0.003) | 15.56 | |||||||||||||||
| BP magnitude | 15.67 (0.002) | 15.67 | 15.67 | ||||||||||||||||||
| RP magnitude | 15.30 (0.002) | 15.30 | 15.30 | ||||||||||||||||||
| Pan g magnitude | 15.67 (0.004) | 15.67 (0.003) | 15.67 (0.003) | ||||||||||||||||||
| Pan r magnitude | 15.60 (0.001) | 15.60 (0.001) | 15.60 (0.001) | ||||||||||||||||||
| Pan i magnitude | 15.63 (0.003) | 15.63 (0.003) | 15.63 (0.003) | ||||||||||||||||||
| Pan z magnitude | 15.72 (0.005) | 15.72 (0.004) | 15.72 (0.004) | ||||||||||||||||||
| Pan y magnitude | 15.80 (0.003) | 15.80 (0.003) | 15.80 (0.003) | ||||||||||||||||||
| E(B-V) | 0.001 | ||||||||||||||||||||
* Constant surface field
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