All names: CSI-04-18265, Gaia DR2 4257461275049675008, UBV M 42356, WD 1826-045, Gaia EDR3 4257461275049675008, uvby98 980021016, WDJ182909.86-042935.49, 2MASS J18290987-0429354, GCRV 68225, TIC 133348816, J1829-0429, L 993-18, NLTT 46555, UCAC4 428-076712, LP 690-13, WD 1826-04, LTT 7347, G21-16, UBV 15708, Gaia DR3 4257461275049675008, PLX 4247.01, G 21-16, USNO 449, GEN# +9.80021016, EGGR 126
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Gaia DR2 | Bedard et al. 2017 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Farihi et al. 2008 | Koester et al. 2005 | Zuckerman et al. 2003 | Bergeron et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 18 29 09.88 (0.02) | 18 29 09.88 (0.07) | 18 29 09.88 | 18 29 09.86 (0.02) | 18 29 09.88 | 18 29 09.00 | ||||||||||||
Declination | -04 29 40.24 (0.03) | -04 29 40.09 (0.5) | -04 29 40.24 | -04 29 35.49 (0.03) | -04 29 40.09 | -04 28 58.44 | ||||||||||||
Spectral type | DAZ | DA | DA | DA | DAZ | DAZ | DAZ | DA | DA | DA5.4 | DA6 | |||||||
Effective temperature | [K] | 8993.0 (79) | 9059.0 (21) | 9125.0 (131) | 9270.0 (133) | 9057.0 (8) | 9480.0 | 9200.0 | 9480.0 | 9480.0 (350) | 9135.0 (48) | |||||||
log(g) | [cgs] | 7.96 (0.02) | 8.00 (0.02) | 8.00 (0.05) | 8.23 (0.05) | 7.99 (0.01) | 8.10 | 7.94 | 7.94 (0.2) | 8.00 (0.009) | ||||||||
Mass | [M☉] | 0.576 (0.01) | 0.599 (0.01) | 0.7 (0.2) | 0.74 (0.03) | 0.57 (0.09) | 0.597 (0.007) | |||||||||||
log(Luminosity) | [L☉] | -2.89 (0.1) | ||||||||||||||||
Cooling age | [Gyr] | 0.8200 | 0.6400 (0.1) | |||||||||||||||
log(H/He) | ||||||||||||||||||
log(C/He) | ||||||||||||||||||
log(Ca/He) | ||||||||||||||||||
log(Ca/H) | -8.83 | -9.1 | -8.826 | |||||||||||||||
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] | 38.76 (0.04) | 38.76 (0.04) | 38.78 (0.6) | 38.78 (0.6) | 34.90 (4) | 38.76 | 38.76 (0.04) | 38.78 (0.6) | 34.00 (3) | ||||||||
Distance | [pc] | 25.80 (0.03) | 25.80 (0.03) | 25.79 (0.4) | 25.79 (0.4) | 28.70 (3) | 22.00 | 28.65 (3) | 25.80 | 25.80 (0.03) | 25.79 (0.4) | 29.41 (3) | ||||||
Composition | H | H | H | H | H | |||||||||||||
Proper motion (right ascension) | [mas/yr] | 12.6556535 (0.03) | 12.59170028 (0.1) | 12.656 (0.03) | 12.59170028 | |||||||||||||
Proper motion (declination) | [mas/yr] | -296.7172716 (0.03) | -296.6931329 (0.1) | -296.717 (0.03) | -296.6931329 | |||||||||||||
Variability | NOV | |||||||||||||||||
Magnetic | ||||||||||||||||||
Bd | [MG] | |||||||||||||||||
Infrared excess (disk) | ||||||||||||||||||
Binarity | ||||||||||||||||||
B magnitude | 14.79 | 14.82 (0.02) | ||||||||||||||||
V magnitude | 14.57 | 14.58 | 14.58 | 14.57 (0.01) | ||||||||||||||
R magnitude | 14.47 | 14.74 (0.07) | ||||||||||||||||
I magnitude | 14.32 | |||||||||||||||||
J magnitude | 14.28 (0.002) | 14.44 | ||||||||||||||||
H magnitude | 14.26 (0.003) | 14.44 | ||||||||||||||||
K magnitude | 14.32 (0.007) | 14.39 | 14.09 (0.1) | |||||||||||||||
u magnitude | ||||||||||||||||||
g magnitude | 14.67 (0.01) | |||||||||||||||||
r magnitude | 14.64 (0.01) | |||||||||||||||||
i magnitude | 14.59 (0.01) | |||||||||||||||||
z magnitude | ||||||||||||||||||
G magnitude | 14.54 (0.001) | 14.56 | 14.54 | 14.54 (0.003) | 14.56 | |||||||||||||
BP magnitude | 14.63 (0.001) | 14.61 | 14.61 | |||||||||||||||
RP magnitude | 14.38 (0.002) | 14.39 | 14.39 | |||||||||||||||
Pan g magnitude | 14.63 (0.004) | 14.63 (0.005) | ||||||||||||||||
Pan r magnitude | 14.64 (0.002) | 14.64 (0.002) | ||||||||||||||||
Pan i magnitude | 14.74 (0.008) | 14.74 (0.009) | ||||||||||||||||
Pan z magnitude | 14.85 (0.002) | 14.85 (0.002) | ||||||||||||||||
Pan y magnitude | 14.93 (0.003) | 14.93 (0.003) | ||||||||||||||||
E(B-V) | 0.001 |
* 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.