WD 2018-233
All names: GALEX J202128.7-230831, BPS CS 22955-0037, WD 2018-233, BPS CS 22955-37, WDJ202128.75-230830.66, Gaia DR3 6849796229451135104, TIC 71883633, Gaia DR2 6849796229451135104, Gaia EDR3 6849796229451135104, 2MASS J20212874-2308307, USNO-B1.0 0668-00969536
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 21 28.82 (0.03) | 20 21 28.81 (0.04) | 20 21 28.82 | 20 21 28.75 (0.03) | 20 21 28.81 | 20 21 28.27 | ||||||
| Declination | -23 08 31.24 (0.02) | -23 08 31.22 (0.03) | -23 08 31.24 | -23 08 30.66 (0.02) | -23 08 31.22 | -23 08 25.08 | ||||||
| Spectral type | DA | DA | DA | DA3.2 | DA | |||||||
| Effective temperature | [K] | 14744.0 | 15700.0 (276) | 15585.0 (29) | 14977.0 (133) | |||||||
| log(g) | [cgs] | 7.98 | 8.06 (0.05) | 7.81 (0.006) | 8.00 (0.008) | |||||||
| Mass | [M☉] | 0.601 | 0.65 (0.03) | 0.614 (0.006) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.2017 | ||||||||||
| 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] | 17.30 (0.04) | 17.16 (0.06) | 17.30 | 17.30 (0.04) | 17.16 (0.06) | ||||||
| Distance | [pc] | 57.81 (0.1) | 58.28 (0.2) | 42.00 | 57.81 | 57.81 (0.1) | 58.28 (0.2) | |||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 57.10427418 (0.04) | 57.13404344 (0.08) | 57.104 (0.04) | 57.13404344 | |||||||
| Proper motion (declination) | [mas/yr] | -36.42322239 (0.03) | -36.30599306 (0.06) | -36.423 (0.03) | -36.30599306 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 14.40 | 15.20 | ||||||||||
| V magnitude | 15.10 | |||||||||||
| R magnitude | 15.20 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.48 (0.06) | |||||||||||
| H magnitude | 15.56 (0.1) | |||||||||||
| K magnitude | 15.54 (0.2) | |||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 15.12 (0.002) | 15.14 | 15.12 | 15.12 (0.003) | 15.14 | |||||||
| BP magnitude | 15.08 (0.002) | 15.05 | 15.05 | |||||||||
| RP magnitude | 15.24 (0.002) | 15.24 | 15.24 | |||||||||
| Pan g magnitude | 15.02 (0.003) | |||||||||||
| Pan r magnitude | 15.29 (0.003) | |||||||||||
| Pan i magnitude | 15.56 (0.002) | |||||||||||
| Pan z magnitude | 15.80 (0.003) | |||||||||||
| Pan y magnitude | 15.96 (0.005) | |||||||||||
| E(B-V) | 0.002 | |||||||||||
* Constant surface field
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