All names: Gaia DR2 4835794942327992704, WD 0341-45, WD 0341-459, V* VY Hor, BPM 31594, Gaia EDR3 4835794942327992704, UCAC4 221-003651, TIC 101014997, uvby98 600231594 V, WDJ034329.03-454904.23, Gaia DR3 4835794942327992704, GALEX J034329.1-454903, L 300-34, GEN# +6.00231594, 2MASS J03432903-4549042, PPMX J034329.0-454904, 1SWASP J034329.01-454904.2
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Warner & Cropper 1992 | Odonoghue 1986 | McGraw 1976 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Research Corporation | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 43 29.22 (0.02) | 03 43 29.22 (0.03) | 03 43 29.22 | 03 43 29.03 (0.02) | 03 43 29.22 | 03 43 24.84 | |||||||
| Declination | -45 49 01.96 (0.02) | -45 49 02.03 (0.03) | -45 49 01.96 | -45 49 04.23 (0.02) | -45 49 02.03 | -45 48 34.20 | |||||||
| Spectral type | DA | DA | DA4.3 | DAV | DA4 | ||||||||
| Effective temperature | [K] | 11820.0 (174) | 11500.0 | 11500.0 | 11500.0 | 11337.0 (75) | 11540.0 | ||||||
| log(g) | [cgs] | 8.13 (0.05) | 8.05 | 8.05 | 8.05 | 8.01 (0.007) | 8.11 | ||||||
| Mass | [M☉] | 0.68 (0.03) | 0.609 (0.006) | ||||||||||
| 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] | 22.59 (0.02) | 22.55 (0.03) | 22.59 | 22.59 (0.02) | 22.55 (0.03) | |||||||
| Distance | [pc] | 44.27 (0.04) | 44.34 (0.06) | 42.00 | 44.27 | 44.27 (0.04) | 44.34 (0.06) | ||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 122.7943584 (0.02) | 122.7237487 (0.06) | 122.794 (0.02) | 122.7237487 | ||||||||
| Proper motion (declination) | [mas/yr] | 142.1239758 (0.03) | 142.1301785 (0.06) | 142.124 (0.03) | 142.1301785 | ||||||||
| Variability | VAR | VAR | VAR | VAR | VAR | ||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 15.16 (0.08) | ||||||||||||
| V magnitude | 15.00 | 15.00 | 15.00 | 14.91 (0.1) | 15.03 | ||||||||
| R magnitude | 15.28 (0.03) | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.05 (0.04) | ||||||||||||
| H magnitude | 15.08 (0.07) | ||||||||||||
| K magnitude | 14.97 (0.1) | ||||||||||||
| u magnitude | |||||||||||||
| g magnitude | |||||||||||||
| r magnitude | |||||||||||||
| i magnitude | |||||||||||||
| z magnitude | |||||||||||||
| G magnitude | 15.04 (0.007) | 15.06 | 15.04 | 15.04 (0.004) | 15.06 | ||||||||
| BP magnitude | 15.06 (0.007) | 15.06 | 15.06 | ||||||||||
| RP magnitude | 15.04 (0.005) | 15.04 | 15.04 | ||||||||||
| Pan g magnitude | |||||||||||||
| Pan r magnitude | |||||||||||||
| Pan i magnitude | |||||||||||||
| Pan z magnitude | |||||||||||||
| Pan y magnitude | |||||||||||||
| E(B-V) | 0.000 | ||||||||||||
| Period #1 | [s] | 416.1 | 617.3 | 314.0 | |||||||||
| Amplitude #1 | [mma] | 5 | |||||||||||
| Period #2 | [s] | 617.9 | 617.0 | ||||||||||
| Amplitude #2 | [mma] | 9.0 | |||||||||||
* 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.