EGGR 334
All names: WDJ210951.16+425705.12, TIC 136513972, USNO-B1.0 1329-00506866, 2MASS J21095113+4257050, LSPM J2109+4257S, ** LDS 2492B, NLTT 50702, Gaia DR2 1970054533224387072, KPD 2108+4245, G 212-B1A, LP 234-1664, Gaia DR3 1970054533224387072, WD 2107+427, UCAC4 665-095238, IPHAS J210951.25+425705.1, EGGR 334, Gaia EDR3 1970054533224387072, G212-B1A, WDS J21099+4257B
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Wegner et al. 1987 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 09 51.44 (0.02) | 21 09 51.44 (0.03) | 21 09 51.44 | 21 09 51.16 (0.02) | 21 09 51.44 | 21 09 50.69 | ||||||
| Declination | 42 57 04.85 (0.02) | 42 57 04.86 (0.04) | 42 57 04.85 | 42 57 05.12 (0.02) | 42 57 04.86 | 42 57 03.60 | ||||||
| Spectral type | DC5 | DC5 | DB | DC5 | DC5 | |||||||
| Effective temperature | [K] | 11303.0 | 11851.0 | 13000.0 | 12368.0 (93) | |||||||
| log(g) | [cgs] | 8.03 | 8.02 | 8.06 (0.009) | ||||||||
| Mass | [M☉] | 0.62 | 0.594 | 0.623 (0.008) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.4534 | 0.4055 | |||||||||
| log(H/He) | <-5 | |||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 17.66 (0.03) | 17.72 (0.05) | 17.66 | 17.66 (0.03) | 17.72 (0.05) | ||||||
| Distance | [pc] | 56.61 (0.09) | 56.44 (0.1) | 56.61 | 56.61 (0.09) | 56.44 (0.1) | ||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 195.7513146 (0.03) | 195.6419338 (0.08) | 195.751 (0.03) | 195.6419338 | |||||||
| Proper motion (declination) | [mas/yr] | -17.26367412 (0.03) | -17.27824258 (0.07) | -17.264 (0.03) | -17.27824258 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 15.64 (0.1) | |||||||||||
| V magnitude | 15.64 (0.1) | |||||||||||
| R magnitude | 16.03 (0.08) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.80 (0.08) | |||||||||||
| H magnitude | 15.90 (0.2) | |||||||||||
| K magnitude | 15.43 (0.2) | |||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 15.57 (0.002) | 15.59 | 15.57 | 15.57 (0.003) | 15.59 | |||||||
| BP magnitude | 15.56 (0.002) | 15.53 | 15.53 | |||||||||
| RP magnitude | 15.58 (0.002) | 15.58 | 15.58 | |||||||||
| Pan g magnitude | 15.56 (0.005) | |||||||||||
| Pan r magnitude | 15.73 (0.005) | |||||||||||
| Pan i magnitude | 15.93 (0.006) | |||||||||||
| Pan z magnitude | 16.11 (0.005) | |||||||||||
| Pan y magnitude | 16.25 (0.005) | |||||||||||
| E(B-V) | 0.004 | |||||||||||
* Constant surface field
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