All names: WDJ234035.47-754508.73, 2MASS J23403543-7545087, WD 2337-76, LTT 9648, L 49-32, TIC 277938251, BPM 15727, LEHPM 6057, GALEX J234034.8-754509, NLTT 57574, USNO-B1.0 0142-00203542, Gaia EDR3 6377952874656471552, WG 54, Gaia DR3 6377952874656471552, GSC 09477-00646, L 26-23, UCAC4 072-041707, Gaia DR2 6377952874656471552, WD 2337-760
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 40 34.63 (0.02) | 23 40 34.66 (0.03) | 23 40 34.63 | 23 40 35.47 (0.02) | 23 40 34.66 | 23 40 39.94 | |||
| Declination | -75 45 10.84 (0.02) | -75 45 10.78 (0.03) | -75 45 10.84 | -75 45 08.73 (0.02) | -75 45 10.78 | -75 46 21.72 | |||
| Spectral type | DA | DA | DA3.5 | DA3 | |||||
| Effective temperature | [K] | 14420.0 (277) | 15318.0 (125) | ||||||
| log(g) | [cgs] | 7.61 (0.06) | 7.55 (0.007) | ||||||
| Mass | [M☉] | 0.43 (0.02) | 0.396 (0.004) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| 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] | 14.72 (0.02) | 14.69 (0.03) | 14.72 | 14.72 (0.02) | 14.69 (0.03) | |||
| Distance | [pc] | 67.94 (0.1) | 68.09 (0.2) | 61.00 | 67.94 | 67.94 (0.1) | 68.09 (0.2) | ||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -193.7580205 (0.03) | -193.7837257 (0.08) | -193.758 (0.03) | -193.7837257 | ||||
| Proper motion (declination) | [mas/yr] | -132.1291289 (0.03) | -131.9776915 (0.06) | -132.129 (0.03) | -131.9776915 | ||||
| Variability | NOV | ||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 14.75 (0) | ||||||||
| V magnitude | 14.77 (0.02) | ||||||||
| R magnitude | 15.16 (0.1) | ||||||||
| I magnitude | |||||||||
| J magnitude | 15.03 (0.04) | ||||||||
| H magnitude | 15.14 (0.08) | ||||||||
| K magnitude | 15.04 (0.1) | ||||||||
| u magnitude | |||||||||
| g magnitude | 14.68 (0.03) | ||||||||
| r magnitude | 14.97 (0.01) | ||||||||
| i magnitude | 15.29 (0.01) | ||||||||
| z magnitude | |||||||||
| G magnitude | 14.81 (0.001) | 14.83 | 14.81 | 14.81 (0.003) | 14.83 | ||||
| BP magnitude | 14.77 (0.001) | 14.77 | 14.77 | ||||||
| RP magnitude | 14.91 (0.002) | 14.92 | 14.92 | ||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.003 | ||||||||
* 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.