All names: UCAC4 245-191098, HE 2334-4127, TIC 224270521, GEN# +6.00109631, WD 2334-414, GALEX J233738.7-411033, Gaia DR2 6537005065634429312, Gaia DR3 6537005065634429312, WDJ233738.74-411032.64, MCT 2334-4127, LEP2337-4110, EC 23349-4127, LTT 9631, 2MASS J23373872-4110326, Gaia EDR3 6537005065634429312
| Parameter | Unit | Gaia EDR3 | Subasavage et al. 2022 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Voss et al. 2007 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 37 38.91 (0.02) | 23 37 38.91 (0.04) | 23 37 38.91 | 23 37 38.74 (0.02) | 23 37 38.91 | 23 37 38.83 | |||||
| Declination | -41 10 34.72 (0.03) | -41 10 34.65 (0.04) | -41 10 34.72 | -41 10 32.64 (0.03) | -41 10 34.65 | -41 10 28.92 | |||||
| Spectral type | DB | DB | DB | DBA | DBA2.8 | ||||||
| Effective temperature | [K] | 16555.0 (1822) | 21193.0 (994) | 18250.0 | 19081.0 (274) | ||||||
| log(g) | [cgs] | 7.84 (0.1) | 8.28 (0.09) | 8.03 | 8.02 (0.01) | ||||||
| Mass | [M☉] | 0.504 (0.09) | 0.77 (0.06) | 0.611 | 0.606 (0.01) | ||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.1067 | 1.1400 | ||||||||
| log(H/He) | -5.34 | ||||||||||
| 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] | 13.26 (0.04) | 13.26 (0.06) | 13.26 (0.06) | 13.26 | 13.26 (0.04) | 13.26 (0.06) | ||||
| Distance | [pc] | 75.43 (0.2) | 75.41 (0.3) | 75.00 | 75.41 (0.4) | 75.43 | 75.43 (0.2) | 75.41 (0.4) | |||
| Composition | He | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 124.2840989 (0.04) | 124.3088539 (0.07) | 124.284 (0.04) | 124.3088539 | ||||||
| Proper motion (declination) | [mas/yr] | -129.8365702 (0.03) | -129.7260599 (0.08) | -129.837 (0.03) | -129.7260599 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.12 | 15.61 | |||||||||
| V magnitude | 15.17 | 15.09 (0.02) | |||||||||
| R magnitude | 15.26 | 15.28 (0.02) | |||||||||
| I magnitude | 15.33 | ||||||||||
| J magnitude | 15.57 | 15.57 (0.05) | |||||||||
| H magnitude | 15.62 | 15.62 (0.1) | |||||||||
| K magnitude | 15.70 | 15.70 (0.3) | |||||||||
| u magnitude | |||||||||||
| g magnitude | 15.01 (0.02) | ||||||||||
| r magnitude | 15.38 (0.05) | ||||||||||
| i magnitude | 15.74 (0.01) | ||||||||||
| z magnitude | |||||||||||
| G magnitude | 15.14 (0.002) | 15.16 | 15.14 | 15.14 (0.003) | 15.16 | ||||||
| BP magnitude | 15.06 (0.002) | 15.01 | 15.01 | ||||||||
| RP magnitude | 15.29 (0.002) | 15.30 | 15.30 | ||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.002 | ||||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.