All names: Gaia DR2 470639806179201792, Gaia EDR3 470639806179201792, NLTT 13088, 2MASS J04231375+5745267, LSPM J0423+5745, Gaia DR3 470639806179201792, TIC 8408445, LP 84-16, WDJ042313.75+574526.75, WDJ042313.75+574526.76, J0423+5745, USNO-B1.0 1477-00168639
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Tremblay et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 04 23 13.65 (0.04) | 04 23 13.66 (0.05) | 04 23 13.66 | 04 23 13.65 | 04 23 13.75 (0.04) | 04 23 13.66 | ||||||||
Declination | 57 45 23.03 (0.03) | 57 45 23.15 (0.03) | 57 45 23.15 | 57 45 23.03 | 57 45 26.76 (0.03) | 57 45 23.15 | ||||||||
Spectral type | DC | DC | DC | DC | DC | DC | ||||||||
Effective temperature | [K] | 7140.0 (61) | 7099.0 (34) | 7110.5 (37) | 7110.0 (40) | 7663.0 | 7368.0 | 6859.0 (38) | ||||||
log(g) | [cgs] | 8.18 (0.02) | 8.17 (0.008) | 8.18 (0.02) | 8.18 (0.02) | 8.40 | 8.31 | 8.13 (0.008) | ||||||
Mass | [M☉] | 0.688 (0.02) | 0.678 (0.007) | 0.854 | 0.774 | 0.655 (0.008) | ||||||||
log(Luminosity) | [L☉] | |||||||||||||
Cooling age | [Gyr] | 2.0400 | 2.6710 | 2.5140 | ||||||||||
log(H/He) | -3.4 | |||||||||||||
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] | 26.76 (0.05) | 26.76 (0.05) | 26.73 (0.07) | 26.73 (0.07) | 26.73 (0.07) | 26.76 | 26.77 (0.05) | 26.73 (0.07) | |||||
Distance | [pc] | 37.36 (0.07) | 37.37 (0.07) | 37.41 (0.1) | 37.41 (0.1) | 37.41 (0.1) | 37.36 | 37.36 (0.07) | 37.41 (0.1) | |||||
Composition | He | He | ||||||||||||
Proper motion (right ascension) | [mas/yr] | -45.74638408 (0.05) | -45.76673218 (0.1) | -45.746 (0.05) | -45.76673218 | |||||||||
Proper motion (declination) | [mas/yr] | -232.7248745 (0.04) | -232.5427026 (0.09) | -232.725 (0.04) | -232.5427026 | |||||||||
Variability | ||||||||||||||
Magnetic | ||||||||||||||
Bd | [MG] | |||||||||||||
Infrared excess (disk) | ||||||||||||||
Binarity | ||||||||||||||
B magnitude | 16.60 | |||||||||||||
V magnitude | ||||||||||||||
R magnitude | 16.30 | |||||||||||||
I magnitude | ||||||||||||||
J magnitude | 16.11 (0.09) | 16.11 (0.09) | ||||||||||||
H magnitude | ||||||||||||||
K magnitude | ||||||||||||||
u magnitude | ||||||||||||||
g magnitude | ||||||||||||||
r magnitude | ||||||||||||||
i magnitude | ||||||||||||||
z magnitude | ||||||||||||||
G magnitude | 16.56 (0.002) | 16.57 | 16.57 | 16.56 | 16.56 (0.003) | 16.57 | ||||||||
BP magnitude | 16.71 (0.002) | 16.71 | 16.71 | |||||||||||
RP magnitude | 16.29 (0.003) | 16.29 | 16.29 | |||||||||||
Pan g magnitude | 16.72 (0.003) | 16.72 (0.004) | ||||||||||||
Pan r magnitude | 16.60 (0.003) | 16.60 (0.003) | ||||||||||||
Pan i magnitude | 16.63 (0.003) | 16.63 (0.004) | ||||||||||||
Pan z magnitude | 16.72 (0.003) | 16.72 (0.003) | ||||||||||||
Pan y magnitude | 16.77 (0.007) | 16.77 (0.006) | ||||||||||||
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.